Relevant bibliographies by topics / Light conducting

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Light conducting'

Author: Grafiati
Published: 10 January 2023
Last updated: 28 January 2023

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Journal articles on the topic "Light conducting"

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Ishiharada, Minoru, Kouichi Iwami, Itsuo Tanuma, Kazuo Naito, and Torao Hashimoto. "Developments of Light-conducting Tube." Seikei-Kakou 7, no. 8 (1995): 499–504. http://dx.doi.org/10.4325/seikeikakou.7.499.

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Miloh, Touvia. "Light-induced thermoosmosis about conducting ellipsoidal nanoparticles." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 475, no. 2223 (March 2019): 20180040. http://dx.doi.org/10.1098/rspa.2018.0040.

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We consider the central problem of a non-spherical (ellipsoidal) polarizable (metallic) nanoparticle freely suspended in a conducting liquid phase which is irradiated (heated) by a laser under the Rayleigh (electrostatic) approximation. It is shown that, unlike the case of perfectly symmetric (spherical) particles, the surface temperature of general orthotropic particles exposed to continuous laser irradiation is not uniform! Thus, the induced surface slip (Soret type) velocity may lead to a self-induced thermoosmotic flow (sTOF) about the particle, in a similar manner to the electroosmotic flow driven by the Helmholtz—Smoluchowski slippage. Using the recent advancement in the theory of Lamé functions and ellipsoidal harmonics, we analytically present new solutions for two key physical problems. (i) Heat conduction and temperature distribution inside and outside a conducting laser-irradiated homogeneous tri-axial ellipsoid which is subjected to uniform Joule heating. (ii) Creeping (Stokes) sTOF around a fixed impermeable metallic ellipsoidal nanoparticle driven by a Soret-type surface slip velocity (i.e. proportional to the surface-temperature gradient).
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Figotin, Alexander. "Model of a nonhomogeneous medium conducting light." Journal of Statistical Physics 69, no. 5-6 (December 1992): 969–93. http://dx.doi.org/10.1007/bf01058758.

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Epstein, Arthur J. "Electrically Conducting Polymers: Science and Technology." MRS Bulletin 22, no. 6 (June 1997): 16–23. http://dx.doi.org/10.1557/s0883769400033583.

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For the past 50 years, conventional insulating-polymer systems have increasingly been used as substitutes for structural materials such as wood, ceramics, and metals because of their high strength, light weight, ease of chemical modification/customization, and processability at low temperatures. In 1977 the first intrinsic electrically conducting organic polymer—doped polyacetylene—was reported, spurring interest in “conducting polymers.” Intrinsically conducting polymers are completely different from conducting polymers that are merely a physical mixture of a nonconductive polymer with a conducting material such as metal or carbon powder. Although initially these intrinsically conducting polymers were neither processable nor air-stable, new generations of these materials now are processable into powders, films, and fibers from a wide variety of solvents, and also are airstable. Some forms of these intrinsically conducting polymers can be blended into traditional polymers to form electrically conductive blends. The electrical conductivities of the intrinsically conductingpolymer systems now range from those typical of insulators (<10−10 S/cm (10−10 Ω−1 cm1)) to those typical of semiconductors such as silicon (~10 5 S/cm) to those greater than 10+4 S/cm (nearly that of a good metal such as copper, 5 × 105 S/cm). Applications of these polymers, especially polyanilines, have begun to emerge. These include coatings and blends for electrostatic dissipation and electromagnetic-interference (EMI) shielding, electromagnetic-radiation absorbers for welding (joining) of plastics, conductive layers for light-emitting polymer devices, and anticorrosion coatings for iron and steel.The common electronic feature of pris tine (undoped) conducting polymers is the π-conjugated system, which is formed by the overlap of carbon pz orbitals and alternating carbon-carbon bond lengths.
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Langer, Jerzy J., Ewelina Frąckowiak, and Sebastian Golczak. "Electrically induced light emission from proton-conducting materials. Protonic light-emitting diodes." Journal of Materials Chemistry C 8, no. 3 (2020): 943–51. http://dx.doi.org/10.1039/c9tc05980f.

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Water doped with H+ and HO− enables the formation of a protonic p–n junction, which works similarly to a typical, electron-based p–n junction, including light emission when electrically powered. Polymers provide mechanical stability.
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Pedrosa, I. A. "Quantum Light and Coherent States in Conducting Media." Journal of Applied Mathematics and Physics 08, no. 11 (2020): 2475–87. http://dx.doi.org/10.4236/jamp.2020.811183.

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Baloshin, Yu A., and A. V. Kostin. "Light scattering on a slightly rough conducting surface." Journal of Optical Technology 67, no. 1 (January 1, 2000): 28. http://dx.doi.org/10.1364/jot.67.000028.

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Ghosh, Srabanti, Natalie A. Kouamé, Laurence Ramos, Samy Remita, Alexandre Dazzi, Ariane Deniset-Besseau, Patricia Beaunier, Fabrice Goubard, Pierre-Henri Aubert, and Hynd Remita. "Conducting polymer nanostructures for photocatalysis under visible light." Nature Materials 14, no. 5 (March 16, 2015): 505–11. http://dx.doi.org/10.1038/nmat4220.

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Schiffer, Ralf. "Light scattering by perfectly conducting statistically irregular particles." Journal of the Optical Society of America A 6, no. 3 (March 1, 1989): 385. http://dx.doi.org/10.1364/josaa.6.000385.

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Tong, S. W., C. S. Lee, Y. Lifshitz, D. Q. Gao, and S. T. Lee. "Conducting fluorocarbon coatings for organic light-emitting diodes." Applied Physics Letters 84, no. 20 (May 17, 2004): 4032–34. http://dx.doi.org/10.1063/1.1751220.

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Dissertations / Theses on the topic "Light conducting"

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Troensegaard, Nielsen Kim. "Light harvesting by dye linked conducting polymers /." Risø National Laboratory, 2006. http://www.risoe.dk/rispubl/POL/polpdf/ris-phd-26.pdf.

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Akin, Figen Tulin. "Ionic Conducting Ceramic Membrane Reactor for Partial Oxidation of Light Hydrocarbons." University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1021991903.

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NAHM, KIEBONG. "LIGHT SCATTERING BY POLYSTYRENE SPHERES ON A CONDUCTING PLANE (MIE, IMAGE CHARGE, INTERFERENCE, BRDF)." Diss., The University of Arizona, 1985. http://hdl.handle.net/10150/188071.

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A system consisting of a sphere sitting on a clean mirror was modeled as a two particle system: the real sphere and its image sphere, treating the mirror as a conducting plane. When the system was irradiated with a plane-polarized collimated laser beam with varying angles of incidence, the scattering from each particle was assumed to follow Mie's solution for light scattering by a sphere. Phase difference between the scattering by the real sphere and the one by its image sphere was assessed by the geometry of the model. The far field solutions from each of the spheres were added to yield a phase dependent intensity function. Another model assumed no phase correlation between the two and the intensities from each spheres were added. Also discussed is the Double Interaction Mode, which takes the mirror-sphere separation into consideration. These theoretical results were converted to Bidirectional Reflectance Distribution Functions (BRDF). The theoretical as well as the empirical surface scattering from a good quality optical surface was introduced. The BRDF values thus calculated were added to the background scattering by the mirror since no interaction was assumed between the spheres and the rough metallic surface of the mirror. The test sample was prepared with polystyrene spheres with the nominal diameter of 0.984 μm on a high quality aluminum mirror. The BRDF data from this sample with 6328Å and 4416Å were compared with the one obtained with the model described above. The comparison strongly indicated that there existed no phase correlation between the scatterings by the two spheres. Determination of the sphere size and practical applicability for estimating the sphere number density on the surface are also discussed.
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Ghanavi, Saman. "Organic-inorganic hybrid perovskites as light absorbing/hole conducting material in solar cells." Thesis, Uppsala universitet, Fysikalisk kemi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-205605.

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Solar cells involving two different perovskites were manufactured and analyzed. The perovskites were (CH3NH3)PbI3 and (CH3NH3)SnI3. Both perovskites have a shared methyl ammonium group (MA) and are used as both light absorbing material and hole conducting material (HTM) in this project. The preparation procedures for the complete device were according to previous attempts to make stable organic-inorganic hybrid perovskites and involved different layers and procedures. Both perovskites were manufactured by mixing methyl ammonium iodide with either lead iodide or tin iodide in different concentrations. This was then deposited on a 600nm thick mesoporous TiO2 layer. Deposition of the hole-transporting material (HTM) was done by spin-coating 2,2´,7,7´-tetrakis-(N,N-dip-methoxyphenylamine) 9,9´-spirobifluorene, also called spiro-OMeTAD. Lastly thermal evaporation was used to deposit a silver electrode. Different measurements were done on the light absorbing materials. The lead perovskite solar cell device was subjected to illumination with Air Mass 1.5 sunlight (100mW/cm2) which produced an open circuit voltage Voc of 0.645 V, a short circuit photocurrent Jsc of about 7 mA/cm2, and a fill factor FF of 0.445. This resulted in a power conversion efficiency (PCE) of about 2% and an incident photon to current efficiency (IPCE) of up to 60%. The tin perovskite has not been used in solar cells before and the initial results presented here shows low performance using the same device construction as for the lead perovskite. However, the incident photon to electron conversion affirms that there is a current in the visible region, and IPCE of 12.5 % was observed at 375nm. UV-visible NIR measurement was used to analyze the light absorption of the perovskite structures and a broader light absorption was observed for the lead perovskite compared to the tin perovskite. X-ray diffraction (XRD) analyzing was done on both perovskite materials using different concentrations and both with and without nanoporous TiO2 film. Both perovskites demonstrate very similar peaks with some exceptions. Photo-induced absorption (PIA) measurement was used for the purpose of showing the magnitude of charge separation or hole transfer in the light absorbing material, both when using the perovskites as a light absorber and a hole conductor. This is measured by analyzing the hole injection from the excited light absorber into the HTM. Hole transfer was observed for the lead perovskite (when used as light absorber) and tin perovskite (when used as hole conductor).
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Noralm, Zeerak. "Implementing method for conducting Real Driving Emission (RDE)." Thesis, KTH, Kraft- och värmeteknologi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-229083.

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Det här projektet handlar om att utveckla en metod för real driving emission (RDE). RDE är ett komplement till Worldwide Light Duty Test Procedure (WLTP) som kommer att ersätta New European Driving Cycle (NEDC). Dessa cykler och metoder används för att mäta personbilars avgaser. Huvudanledningen till varför NEDC ska bytas ut är för att körcyklerna inte längre är realistiska och reflekterar inte hur en bil presterar egentligen. Detta har lett till att bilar har högre bränsleförbrukning och högre avgasutsläpp när dom körs i trafiken jämfört med resultaten från NEDC.Metoden utvecklades genom hänvisningar till den officiella WLTP rapporten. Tillsammans med Vehicle Emission gruppen från AVL fastställdes en komplett steg för steg metod.Utrustningen som användes förseddes av AVL och flera tester av varje steg av metoden genomfördes för att förfina metoden så mycket som möjligt. Bilen som användes var en SAAB 9-5 2.0l bensin.Resultaten visade att både bilen och testet inte mötte kriterierna för RDE och godkändes inte av programmet som användes för att utvärdera testet. Detta var delvis för att kriterierna för RDE är strikta och delvis för att ingen pre och post test genomfördes eftersom det tar mycket tid för att dom testerna ska bli godkända.I överlag ger WLTP och RDE potentiella bilköpare en bättre detaljerad sammanfattning av hur bra bilen presterar i trafiken jämfört med NEDC.
This project is about developing a method for real driving emission (RDE). RDE is a complement to Worldwide Light Duty Test Procedure (WLTP) which will replace the New European Driving Cycle (NEDC). These cycles and procedures are used for measuring emissions for light duty vehicles. The main reason why NEDC is being replaced is because the driving cycles does not reflect how vehicles are normally driven. This has resulted in vehicles having higher fuel consumption and emitting more poisonous gases when driven on actual roads compared to the results from the NEDC.The method was developed by referring to the laws of the official WLTP report written by EU. Together with the Vehicle Emissions team at AVL a complete step by step method was established.All the equipment and instruments were provided by AVL and several tests of each step of the method was made to perfect the method as much as possible. The vehicle that was used was a 2005 SAAB 9-5 2.0l petrol.The results displayed that the car and the test did not meet the criteria for RDE and was not passed by the evaluating software. This was partly because the driving criteria for RDE are strict and can be difficult to achieve and partly because no pre and post test was made since it can take several tries before those tests are passed.Overall, WLTP and RDE give buyers a more detailed and better conclusion of how a car performs on the road compared to NEDC.
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Batcheller, James Christopher. "Waking angels, a light unto the darkness, and a crescent still abides : the elegiac music of David R. Gillingham /." Full-text version available from OU Domain via ProQuest Digital Dissertations, 2000.

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Lluscà, Jané Marta. "Novel light management techniques for thin film solar cells: Nanotextured substrates and transparent conducting upconverters." Doctoral thesis, Universitat de Barcelona, 2015. http://hdl.handle.net/10803/384619.

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The objective of this work was to study two different light management approaches to enhance the efficiency of thin film Si solar cells and these were the manipulation of the light path (light trapping) and changing the incoming photon energy (upconversion). In the first approach the light path was manipulated by creating either periodic or random textured interfaces. Periodic patterns were created at the front AZO by means of direct laser ablation. Amongst all the patterns assessed, the best result was achieved with a linear pattern of 10 lam of pitch and 360 nm of groove depth, that yielded to an Rs of 11 SI/sq and a haze of 12.7% at 600 nm. However structures in the sub-micrometer range cannot be created because the minimum period is limited by the laser spot. By means of the Aluminum Induced Texturing method (AIT) random textures were performed on glass substrates. In this method, a thin Al film is deposited onto a glass substrate and a redox reaction between the Al and the SiO2 of the glass is induced by high temperature annealing. The reaction products are wet-etched and the result is a uniform and rough glass surface. The process parameters were varied in order to control the resultant glass roughness and it was found that the most critical was the Al deposition method. By using evaporation smooth U-shaped craters morphology and roughness up to 90 nm were created, whereas the sputtered films resulted in rough and porous textures with roughness until 145 nm. AZO grown over the U-shape crater morphology led to a double texture with haze values above 10% at 600 nm, transparency above 84%, and Rs-7 SI/sq whereas AZO over very rough glass resulted in a cauliflower-like surface with haze values >32% at 600 nm, Rs around 9.5 SI/sq and transmittance of 74%. A-Si:H solar cells were deposited on different AIT textures and an improvement of the short circuit current, as well as a reduction of the device reflectivity was achieved in all cases in comparison to the cells deposited on smooth glass textures. The second approach was to create a transparent and conducting upconverter to be used on top of the rear reflector of a thin film Si solar cell. For that purpose, ZnO was doped with Er and Yb ions and was post-annealed under different treatments. The unique spectral properties of rare earth (RE) elements due to their electronic configuration occur as a result of their intra 4f-4f shell transitions. In the case of Er, its excitation takes places at 1500 nm and 980 nm and the upconverted photons are emitted within the Si absorption range. Moreover, codoping with Yb can enhance the Er visible emission because they cooperate together due to the matching of their energy levels for k=980 nm. As deposited ZnO doped with rare earths (RE) was found to be transparent and conducting but not luminescent. RE ions need to be surrounded by 6 oxygen in a distorted octahedron to be optically active and REs replacing zinc in the ZnO lattice do not present this symmetry; hence, a post deposition treatment is needed. When the films were post-annealed in air, visible upconversion (UC) was seen at 660 nm under 980 nm laser excitation, however, the films become almost insulating. When the films were annealed in vacuum, lower UC luminescence was achieved, and the resistivity increased 1 order of magnitude. By using CW laser radiation, the electrical properties were maintained and high UC was observed. UC came from clusters of RE06 as well as from RE203 inside or outside the matrix. When annealing in air, in vacuum or by laser radiation, oxygen from the atmosphere bound to the RE to form RE oxides and/or RE06 complexes but just laser annealing was able to preserve the conductivity while producing optically active centers.
L'objectiu d'aquesta tesi és la millora de l'eficiència de les cèl•lules solars de silici en capa prima mitjançant l'estudi de nous mètodes per a l'aprofitament de la llum solar al dispositiu. El primer mètode consisteix en texturar el substrat de vidre per dispersar la llum incident i així incrementar l'absorció en la capa activa. El mètode emprat es la texturització induïda per alumini (AIT); que es basa en una reacció de reducció no uniforme entre el vidre i una capa prima d'alumini gràcies a un tractament tèrmic. Posteriorment els productes de la reacció s'eliminen mitjançant una solució basada en àcid i el resultat és un vidre transparent i texturat. S'ha fet un estudi de la rugositat en funció dels paràmetres del procés i s'ha aconseguit obtenir rugositats controlades i uniformes en superfícies de fins a 10x 10 cm2. Diferents textures s'han provat en cèl.lules solars de silici amorf i s'ha demostrat l'eficàcia d'aquestes en la millora del corrent respecte a les mateixes cèl•lules dipositades sobre vidre pla. El segon mètode estudiat és el fenomen de l'up-conversion que consisteix en la conversió de fotons de baixa energia (EEg) que podran ser absorbits en la zona activa; així doncs s'ha intentat fer una capa conductora, transparent i amb propietats d'up-conversion per utilitzar com a contacte per a cèl• lules solars. Per aquest propòsit s'han estudiat capes conductores i transparents d'òxid de zinc dopat amb erbi i iterbi dipositades per polvorització catòdica sobre vidre. Com que les terres rares han d'estar envoltades d'oxigen per actuar com a centres òptics actius, i en les capes de ZnO:Er:Yb no es dóna aquesta configuració, les capes s'han hagut de sotmetre a diferents tractaments tèrmics, com escalfament en aire, en buit o escalfament amb làser. Escalfant en aire o en buit s'aconsegueix obtenir up-conversion però la conductivitat disminueix notablement, en canvi, escalfant amb radiació làser es possible de mantenir les propietats elèctriques i a més, activar òpticament les terres rares.
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Molapo, Kerileng Mildred. "Electrochemiluminescence and organic electronics of derivatised poly(aniline sulphonic acid) light-emitting diodes." University of the Western Cape, 2011. http://hdl.handle.net/11394/5422.

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>Magister Scientiae - MSc
Applications of electrochemiluminescent conjugated polymers offer promising solutions in addressing the problem of light emitting devices. However, the challenging problems that hamper their application in light emitting devices are loss of signal due to diffusion of the electrochemiluminescence (ECL) reagent out of the detection zone, limited ability to repeatedly cycle an individual luminophore and high reagent consumption. In this work, the main objective was to produce conducting polymers with enhanced electrochemiluminescence by tuning the properties of the polymer itself. The electrochemical and photophysical properties of films of polyaniline (PANI) and poly(8-anilino-1- naphthalene sulfonic acids) (PANSA) synthesized through electro- and chemical polymerization methods were also investigated. The electrosynthesis of PANSA undoped and doped with anthracene sulfonic acid (ASA), 1,2-naphthaquinone-4-sulfonic acid (NSA) and carbon nanotubes (CNT) in acid medium was investigated and the cyclic voltammograms (CV) showed the growth of the polymer during polymerization. The CV multiscan characterization displayed that the growth of the polymer was dependent of the scan rate and the three redox couples were observed as indicative of the three redox states of typical polyaniline and its derivatives. The results also showed that the peak currents were diffusion controlled and the electron charge transport coefficient (De) of the electrosynthesized polymers was found to range between 10⁻⁸ and 10⁻⁹ cm² s⁻¹ for PANSA, PANSA-ASA, PANSA-NSA and PANSA-CNT. The De value indicates that the movement of electrons along the polymer chain was averagely fast. The transmission electron microscopy (TEM) was used to investigate the electronic morphology of the polymers and the TEM images showed an intertwinement of tubings which aggregate into a ring with a mixture of tubings and plastic sheets. The chemical synthesis of PANI, PANSA and PANI-NSA was carried out by using monomers analine, 8-anilino-1-naphthalene sulfonic acid, and aniline with 1,2- naphthaquinone-4-sulfonic acid, respectively, using oxidants. All chemically synthesized polymers exhibited quinoid and benzoid bands typically see in polyaniline FTIR and Raman spectra confirmed the successfully formation of polymers. The CV characterization of these polymers showed distinctive redox peaks. This proved that the polymers were electroactive, conductive and exhibited reversible electrochemistry. The De of the electrosynthesized polymers was found to be ~10⁻⁵ cm² s⁻¹ for chemically synthesized polymers. The electric conductivity measurement showed to increase from 10⁻⁴ to 10⁻² when aniline was polymerized with NSA dopant, this might be related to the process of electron transfer from dopant to polymer. Scanning electron microscopy for external morphology showed that the polymers were made of different nano- rods polymeric structures. Photophysical properties of electro- and chemically synthesized PANSA and PANI were investigated through UV-vis absorption, fluorescence behaviour, and lifetime. The UV-vis absorption spectra of these polymers showed that they exhibited absorption bands corresponding to the polyemeraldine redox state of typical polyaniline. The effect of dopants resulted in the increase in solubility of the polymers with a small shift of absorption bands due to incorporation of dopants in to the backbone of the polymer. The fluorescence emission spectra of the electrochemically synthesized PANSA with and without dopants were observed to be similar and mirror image of the excitation spectra and corresponding to the electronic band of the benzoid ring in the polyemeraldine form confirming that the fluorescing molecule in these polymers were the benzoid rings. However, the emission spectra of the chemically synthesized PANSA and PANI were different to excitation spectra due to loss of symmetry upon excitation. The effects of chemically synthesized PANI, PANSA and PANI-NSA addition on the photophysical properties of [Ru(bpy)₂(picCOOH)]²⁺.(ClO₄⁻)₂) were investigated in order to understand the interaction of polymer and [Ru(bpy)₂(picCOOH)]²⁺.(ClO₄⁻)₂. The analysis revealed that the presence of polyaniline and its derivatives enhanced the [Ru(bpy)₂(picCOOH)]²⁺.(ClO₄⁻)2 absorption band, photoluminescence and fluorescence lifetime. The enhancement observed from interaction of [Ru(bpy)₂(picCOOH)]²⁺.(ClO₄⁻)₂ with polyaniline and its derivatives might be due to the excited state electron transfer from the PANI and PANSA excited state to the [Ru(bpy)₂(picCOOH)]²⁺.(ClO₄⁻)₂. It was further demonstrated in this work that it is possible to form polyaniline and PANSA doped with [Ru(bpy)₂(picCOOH)]²⁺.(ClO₄⁻)₂ films on ITO electrode using potentiostatic growth method to favour ECL production. The results showed that all films generated ECL in the presence of Tripropylamine (TPA) as a co-reactant and their emission properties depend on time used to prepare the film. The enhancement of ECL signal was due to a positive electron transfer from the conducting polymer (PANI and PANSA) to [Ru(bpy)₂(picCOOH)]²⁺.(ClO₄⁻)₂ complex. The results highlighted the potential of these polymeric luminophores usage in the manufacturing of the ECL devices.
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Grgurich, Joel M. "Conducting a Competitive Prototype Acquisition Program: An Account of the Joint Light Tactical Vehicle (JLTV) Technology Development Phase." Monterey, California: Naval Postgraduate School, 2013. http://hdl.handle.net/10945/32830.

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The Joint Light Tactical Vehicle (JLTV) was among the first defense programs to require a competitive prototyping acquisition strategy under the 19 Sep 07 USD (AT&L) policy Memorandum, Prototyping and Competition. At Milestone A, the program was directed to inform the requirements process, validate technology maturity, assess commonality of components across a family of vehicles, and assess manufacturing risks. As a result, the joint program office simultaneously executed three weapon system prototyping contracts in a continuously competitive environment while meeting cost, schedule, and performance objectives. The goal of the JAP was to describe the program management strategy used in the JLTV Technology Development (TD) phase. The resulting document is a firsthand perspective from working within the Product Manager (PM). It discusses how TD acquisition phase program objectives were addressed and several unique management solutions. The focus is an account of planning and managing three contracts from Sep 2008 until May 2010. Information from the JLTV TD phase has significantly changed the requirements for the EMD phase. In addition to informing requirements, the program leveraged the competitive environment by maintaining constant emphasis on the contractors to meet cost and schedule. The results demonstrated that competitive prototyping can work.
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Chelawat, Hitesh. "Development of hybrid organic-inorganic light emitting diodes using conducting polymers deposited by oxidative chemical vapor deposition process." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/59248.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2010.
Includes bibliographical references.
Difficulties with traditional methods of synthesis and film formation for conducting polymers, many of which are insoluble, motivate the development of CVD methods. Indeed, conjugated polymers with rigid linear backbones typically crystallize readily and overcoming the resultant heat of crystallization makes them difficult to dissolve. Poly(3,4-ethylenedioxythiophene) (PEDOT) thin films were obtained through oxidative chemical vapor deposition (oCVD) by using a new oxidant- bromine. The use of bromine eliminates any post processing rinsing step required with other oxidants like iron chloride and hence makes the process completely dry. Accelerated aging experiments show longer retention of electrical conductivity for the PEDOT films obtained using bromine as the oxidant. Conductivities as high as 380 S/cm were obtained for PEDOT films deposited using bromine as the oxidant at 80 'C, which is significantly higher than that for PEDOT films deposited using iron chloride as the oxidant at the same temperature. Cross-sectional SEM of the PEDOT films deposited using bromine on silicon trench wafers demonstrates high conformal deposition of the films. All the results show the possibility of depositing highly conducting, conformal PEDOT films on any substrate including silicon, glass, paper, plastic. One of the many applications of conducting polymer is as hole-transport layer in light emitting diode. To be competitive in the LED market, improvements in hybrid-LED quantum efficiencies as well as demonstrations of long-lived HLED structures are necessary. In this work, we consider improvement in the stability of the HLED. The device fabricated can be configured as ITO/ Poly (EDOT-co-TAA)/CdSe (ZnS)/ Au. All the materials used in the device synthesis are stable in ambient conditions and all the synthesis steps on ITO substrate are done either in air or in very moderate pressure conditions. This significantly reduces the cost of the device fabrication by obviating the need of packaging layers and ultrahigh vacuum tools. The operating voltage as low as 4.3 V have been obtained for red-LEDs. We believe that with optimization of various layers in the device, further improvements can be made. For green LEDs we obtained the characteristic IV curve of a diode, but we still need to work on getting a functioning green LED.
by Hitesh Chelawat.
S.M.
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Books on the topic "Light conducting"

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International Summer School on Light-sensitive and Conducting Polymers (1989 Leipzig, Germany). International Summer School on Light-sensitive and Conducting Polymers: July 3-8, 1989 in Leipzig, GDR. Edited by Roth H. -K and Technische Hochschule Leipzig. Sektion Naturwissenschaften. Leipzig: Der Rektor der Technischen Hochschule Leipzig, 1989.

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Forum on New Materials (5th 2010 Montecatini Terme, Italy). New materials III: Transparent conducting and semiconducting oxides, solid state lighting, novel superconductors and electromagnetic metamaterials : proceedings of the 5th Forum on New Materials, part of CIMTEC 2010--12th International Ceramics Congress and 5th Forum on New Materials, Montecatini Terme, Italy, June 13-18, 2010. Stafa-Zuerich: Trans Tech Pubs. ltd. on behalf of Techna Group, 2011.

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Hapke, Bruce. A model of radiative and conductive energy transfer in planetary regoliths. [Washington, DC: National Aeronautics and Space Administration, 1996.

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Mercer, Stephen. When the Light Came: Conducting Spiritual Warfare - a True Account. Independently Published, 2020.

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Wright, A. G. Photocathodes. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199565092.003.0002.

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Optical properties of photocathodes and their characterization in terms of absorptance, transparency, and reflectance in mixed dielectric media are presented. Photometric units and international standards are based on a specified white light source. The electromagnetic spectrum covers about a decade in wavelength and there is a relationship between photon energy and wavelength. Spectral responsivity can be specified in milliamps per watt or as quantum efficiency, η‎(λ‎), in terms of photoelectrons per incident photon. Empirical specifications, based on filtered light from a standard white light source give a measure of the photocathode response to blue, red, and infrared light. Bialkali photocathodes laid on a conducting substrate can operate at ultra-low temperatures approaching absolute zero, while others can survive operation at 200 °C. End window and side window photomultipliers are available in a range of diameters and photocathode types.
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Breitbart, William S., and Shannon R. Poppito. Cancer and Meaning. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199837250.003.0002.

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This chapter provides instructions for conducting the second session of meaning-centered group psychotherapy. The reader is instructed to reintroduce the basic concepts and sources of meaning from the first session, and to explore the topic of ‘Cancer and Meaning’ in light of the guiding theme ‘Identity before and after Cancer Diagnosis.’ By the end of Session 2, the facilitator will have ensured that group members have a general understanding of what their authentic sense of self is and the impact cancer has had on it.
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Breitbart, William S., and Shannon R. Poppito. Transitions. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199837250.003.0008.

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This chapter provides instructions for conducting the eighth session of meaning-centered group psychotherapy. The reader is instructed to help members to reflect on their group experience in light of the last seven sessions. Facilitators will facilitate dialogue and reflection around members’ thoughts and feeling surrounding the finality of their group experience in light of facing important transitions and facing their own mortality due to their cancer illness. They will also guide the group in exploring what it has been like to share their cancer experiences and life stories with others in the group and to witness others’ stories in return. Time should be given to share and explore members’ final ‘Legacy Projects,’ as well as meaningful experiences within the group process. Time should also be allotted for patients to offer feedback regarding their group experience and hopes for the future.
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Cheung, Emily, and Maranatha Fung. The Hazards of Translating Wheaton’s Elements of International Law into Chinese. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199670055.003.0015.

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This chapter considers to what extent Henry Wheaton’s Elements of International Law was accurately translated into Chinese by WAP Martin in the 1860s. By conducting close textual analysis of selected translated words or phrases and exploring the impact of traditional Chinese culture and Chinese ways of thinking on the first ever attempt of translating a complete piece of Western international law literature into the Chinese language, we uncover the incommensurability of the Western and Chinese ideas of international order and a potential alternative or challenge to the traditional Western perception of international law. Our analysis may also shed some light on the Chinese understanding of international order in the twenty-first century.
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Thomson, J. J., and G. P. Thomson. Conduction of Electricity Through Gases: Volume 1, Ionisation by Heat and Light. University of Cambridge ESOL Examinations, 2013.

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Martin, Jeffrey J. Doing Research. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190638054.003.0005.

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Researchers have to consider a host of factors when planning their research and analyzing their data. This chapter discusses a number of important research considerations. For instance, when planning research it is important to have a large enough sample to prevent conducting an underpowered study that would be unable to detect true differences when they existed. When selecting measures, researchers should understand exactly what they are assessing and determine if the scales used have a history of producing valid and reliable scores with similar samples. When developing measures, researchers should avoid the jingle jangle fallacy and avoid creating scales that are redundant with already developed scales or use names that obfuscate the reader. When analyzing their data scientists should avoid dichotomizing continuous constructs and should shun stepwise regression techniques. When compiling findings, researchers need to consider if their results are meaningful, so effect sizes should be reported and interpreted in light of absolute standards and relative to prior research.
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Book chapters on the topic "Light conducting"

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Chandrasekhar, Prasanna. "Light Emitting Diodes (LEDs)." In Conducting Polymers, Fundamentals and Applications, 453–82. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-5245-1_16.

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Brown, A. R., N. C. Greenham, R. W. Gymer, K. Pichler, D. D. C. Bradley, R. H. Friend, P. L. Burn, A. Kraft, and A. B. Holmes. "Conjugated Polymer Light-emitting Diodes." In Intrinsically Conducting Polymers: An Emerging Technology, 87–106. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-1952-0_9.

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Ghosh, Srabanti, Hynd Remita, and Rajendra N. Basu. "Conducting Polymers Nanostructures for Solar-Light Harvesting." In Visible Light-Active Photocatalysis, 227–52. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2018. http://dx.doi.org/10.1002/9783527808175.ch9.

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Chandrasekhar, Prasanna. "Displays, Including Light-Emitting Diodes (LEDs) and Conductive Films." In Conducting Polymers, Fundamentals and Applications, 625–54. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-69378-1_39.

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Sephra, Percy J., Pari Baraneedharan, and Arunachalam Arulraj. "Nanoelectronics Devices (Field-Effect Transistors, Electrochromic Devices, Light-Emitting Diodes, Dielectrics, Neurotransmitters)." In Advances in Hybrid Conducting Polymer Technology, 77–100. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-62090-5_4.

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Ramanaviciene, A., and A. Ramanavicius. "Towards the Hybrid Biosensors Based on Biocompatible Conducting Polymers." In UV Solid-State Light Emitters and Detectors, 287–96. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2103-9_25.

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Shintake, Tsumoru. "The SACLA X-Ray FEL Based on Normal-Conducting C-Band Technology." In Synchrotron Light Sources and Free-Electron Lasers, 1–48. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-04507-8_9-1.

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Shintake, Tsumoru. "The SACLA X-Ray Free-Electron Laser Based on Normal-Conducting C-Band Technology." In Synchrotron Light Sources and Free-Electron Lasers, 1–48. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-04507-8_9-2.

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Shintake, Tsumoru. "The SACLA X-Ray Free-Electron Laser Based on Normal-Conducting C-Band Technology." In Synchrotron Light Sources and Free-Electron Lasers, 361–417. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-14394-1_9.

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Shintake, Tsumoru. "The SACLA X-Ray Free-Electron Laser Based on Normal-Conducting C-Band Technology." In Synchrotron Light Sources and Free-Electron Lasers, 381–437. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-23201-6_9.

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Conference papers on the topic "Light conducting"

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Conwell, Esther M. "Photoconductive processes in conducting polymers." In Recent Advances in the Uses of Light in Physics, Chemistry, Engineering, and Medicine. SPIE, 1992. http://dx.doi.org/10.1117/12.2322309.

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Boltasseva, Alexandra, Zhaxylyk Kudyshev, Alexander Kildishev, and Vladimir Shalaev. "Tunable topology of photonic systems based on transparent conducting oxides (Conference Presentation)." In Complex Light and Optical Forces XIII, edited by David L. Andrews, Enrique J. Galvez, and Jesper Glückstad. SPIE, 2019. http://dx.doi.org/10.1117/12.2510496.

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Nieto-Vesperinas, M., and J. M. Soto-Crespo. "Multiple Light Scattering From Perfectly Conducting Rough Surfaces." In 14th Congress of the International Commission for Optics, edited by Henri H. Arsenault. SPIE, 1987. http://dx.doi.org/10.1117/12.967274.

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O'Donnell, Kevin A., Michael E. Knotts, and T. R. Michel. "Light scattering by conducting surfaces with one-dimensional roughness." In International Conference on Diffractometry and Scatterometry, edited by Maksymilian Pluta and Mariusz Szyjer. SPIE, 1994. http://dx.doi.org/10.1117/12.192011.

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Slepyan, Gregory Ya, Dmitri Mogilevtsev, Ilay Levie, and Amir Boag. "Scattering of Quantum Light by a Perfectly Conducting Cylinder." In 2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS). IEEE, 2021. http://dx.doi.org/10.23919/ursigass51995.2021.9560366.

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Lee, B. R., K. H. Kim, T. H. Lee, and T. G. Kim. "Nitride-based light-emitting diodes using conducting filament embedded TCO." In 2015 11th Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR). IEEE, 2015. http://dx.doi.org/10.1109/cleopr.2015.7376029.

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Skigin, Diana C., and Ricardo A. Depine. "Scattering of light by identical cavities ruled on a highly conducting surface." In ICO XVIII 18th Congress of the International Commission for Optics, edited by Alexander J. Glass, Joseph W. Goodman, Milton Chang, Arthur H. Guenther, and Toshimitsu Asakura. SPIE, 1999. http://dx.doi.org/10.1117/12.354903.

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Mathew, Anisha Mary, P. Neena, P. Predeep, Mrinal Thakur, and M. K. Ravi Varma. "Styrene-Butadiene Co-Polymer Based Highly Conducting and Flexible Polymer Composite Film with Low Percolation Threshold." In OPTICS: PHENOMENA, MATERIALS, DEVICES, AND CHARACTERIZATION: OPTICS 2011: International Conference on Light. AIP, 2011. http://dx.doi.org/10.1063/1.3643683.

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Wu, Chung-Chih, Yi-Hsiang Huang, Chien-Yu Chen, Wei-Kai Lee, Wei-Lung Tsai, Chun-Yang Lu, Min Jiao, and Chun-Yu Lin. "Exploring Full Potential of Conducting Polymers for Enhancing Light Out-Coupling of OLEDs." In Solid-State and Organic Lighting. Washington, D.C.: OSA, 2015. http://dx.doi.org/10.1364/soled.2015.dtu2d.1.

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Raut, Brijesh, David Keith Chambers, Chad B. O'Neal, and Sandra Selmic. "Reactive Ion Etching of Light Emitting MEH-PPV and Conducting PEDOT:PSS Polymer Materials." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14997.

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In this paper the selective patterning of poly [2-methoxy-5-(2'-ethylhexyloxy)-1, 4-phenylenevinylene] (MEH-PPV) and poly (3, 4-ethylenedioxythiophene) poly (styrenesulfonate) (PEDOT: PSS) based on reactive ion etching for device fabrication is examined. These polymers were anisotropically etched using RIE in a helium plasma. Results show clearly that RIE using helium gas is effective at etching the polymers from the selected areas without physical damage to the working device. Further results show the electroluminescence spectra of etched and unetched devices have almost identical emission spectra, when these devices are operated as an LED. The external quantum efficiency (EQE) for these photodetectors was calculated and EQE peak values reached at 580nm are consistent between etched devices and unetched controls. Test devices show no decrease in EQE performance from RIE.
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Reports on the topic "Light conducting"

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Johnson, B. R. Light Scattering from a Spherical Particle on A Conducting Plane. Part 1. Normal Incidence. Fort Belvoir, VA: Defense Technical Information Center, May 1993. http://dx.doi.org/10.21236/ada265920.

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Butler, Chalmers M., Anthony Q. Martin, A. Kustepeli, and C. Ozzaim. Electromagnetic Fields and Currents on Conducting Bodies Excited by Modulated Laser Light - Parts 1 & 2. Fort Belvoir, VA: Defense Technical Information Center, March 1999. http://dx.doi.org/10.21236/ada384921.

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Chao, A. W., and P. L. Morton. Physical Picture of the Electromagnetic Fields Between Two Infinite Conducting Plates Produced by a Point Charge Moving at the Speed of Light. Office of Scientific and Technical Information (OSTI), June 2015. http://dx.doi.org/10.2172/1185181.

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Haarsager, Ulrike, Claudia Figueroa, Chiaki Yamamoto, Fernando Barbosa, Anna Funaro, Galia Rabchinsky, Melanie Putic, et al. Evaluation of IDB Lab: Strategic Relevance. Inter-American Development Bank, June 2021. http://dx.doi.org/10.18235/0003405.

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This report presents the findings of the first phase of an evaluation of IDB Lab, which until 2018 was known as the Multilateral Investment Fund (MIF). The mandate for this independent evaluation stems from the second capital replenishment of the MIF (MIF III), which was approved by MIF Donors in April 2017 and became effective in March 2019. The Agreement Establishing the MIF III lays out the expected functions of the Fund and establishes that, any time after the first anniversary of the MIF III, IDB's Office of Evaluation and Oversight (OVE) is to conduct an independent evaluation to: i. Review MIF results in light of the purpose and functions of the MIF III Agreement; ii. Assess MIF operations for relevance, effectiveness, efficiency, innovation, sustainability, and additionality; iii. Determine to what extent progress has been made on implementing the approved recommendations of OVE's 2013 evaluation of the MIF. Donors requested that OVE deliver an evaluation of IDB Lab in 2021 to inform discussions about the Lab's future and funding model. As a result, OVE included this evaluation in its 2020/2021 work program and developed an Approach Paper (Annex V) issued in October 2020. OVE is conducting the evaluation in two overlapping phases. The first phase, conducted from April 2020 to May 2021, evaluated the relevance of IDB Lab's mandate, strategic focus, and corporate setup. Its findings are presented in this report. A second phase of the evaluation, currently ongoing, evaluates IDB Lab operations. This is OVE's third independent corporate evaluation of the MIF requested by Donors.
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