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Relevant bibliographies by topics / Photoconducting / Dissertations / Theses

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Dissertations / Theses on the topic 'Photoconducting'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Ferguson, John B. "Transport studies of conducting, semiconducting and photoconducting star polymers." The Ohio State University, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=osu1343144440.

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2

林思敏 and Sze-man Lillian Lam. "Synthesis and photoconducting properties of molecular and polymeric rhenium diimine complexes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B31243241.

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3

Lam, Sze-man Lillian. "Synthesis and photoconducting properties of molecular and polymeric rhenium diimine complexes /." Hong Kong : University of Hong Kong, 2002. http://sunzi.lib.hku.hk/hkuto/record.jsp?B2521195x.

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4

Kasai, S., T. Katagiri, J. Takayanagi, K. Kawase, and T. Ouchi. "Reduction of phonon resonant terahertz wave absorption in photoconductive switches using epitaxial layer transfer." American Institite of Physics, 2009. http://hdl.handle.net/2237/12632.

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5

Mokrinskaya, E. V., L. S. Tonkopieva, S. L. Studzinsky, et al. "Internal Photoeffect in Films of Poly-N-Epoxypropylcarbazole with High Concentration of Anion Polymethine Dye." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35274.

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Growth of concentration of the anion polymethine dye in the films of poly-N-epoxypropylcarbazole involves increase of quenching of photoluminescence in external electric field as well as appearance of longwave band of the photoluminescence and photoconductivity within visible spectral range. It was ascertained that associates of ionic pairs of the dye arise when the concentration increases. Anomalous for semiconductor materials kinetics of the photocurrent growth and relaxation was observed in the films of these composites: time of the photocurrent growth is much less than the time of its

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6

Petty, David Matthew. "Transient photoconduction in phthalocyanines." Thesis, University of Nottingham, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277939.

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7

Kim, Joong Hyun. "Efficient terahertz photoconductive source." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26608.

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Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Ralph, Stephen; Committee Member: Citrin, David; Committee Member: Cressler, John; Committee Member: Denison, Douglas; Committee Member: Mukhopadhyay,Saibal. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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8

Halls, Jonathan James Michael. "Photoconductive properties of conjugated polymers." Thesis, University of Cambridge, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368812.

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9

Li, Di. "Investigation of Terahertz photoconductive antennas." Thesis, University of Liverpool, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.526799.

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Terahertz (THz) frequency range usually refers to the electromagnetic spectrum between 100 GHz and 10 THz, which is between the millimetre and infrared regions. THz research has received a lot of attention because of its wide potential applications for such as high-speed wireless communications, medical imaging, remote sensing and security scanning. Photoconductive antenna is the most popular device used to generate and detect THz waves. However, there are still many challenges in this area, for example, how to improve its radiation efficiency and how to increase its directivity to the desired

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10

Berkin, J. "Transient photoconduction in amphorous materials." Thesis, University of Abertay Dundee, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328002.

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11

Shura, Megersa Wodajo. "Photoconductive spectroscopy of GaSb thin films." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1019937.

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In this study, we have investigated the photo-response of gallium antimonide (GaSb) by measuring the spectral, injection level, as well as the temperature dependence of the steady-state photoconductivity of epitaxial films. By combining the various photo-response measurements with-galvanometric measurements, the effective excess carrier lifetimes could be calculated and described in terms of the various experimental variables considered. From a comparison of the measured and theoretical carrier lifetimes, a clear discrepancy was found for the injection dependent results. This inconsistency bet

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12

Howson, Peter Allen. "Bulk photoconductive high voltage switching techniques." Thesis, University of Brighton, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357154.

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13

Delord, Jean-Marie. "Echantillonnage photoconductif de signaux radio-fréquence." Chambéry, 2010. http://www.theses.fr/2010CHAMS026.

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La très grande stabilité des sources lasers impulsionnelles utilisées comme "horloges" optiques permet d'envisager la réalisation de convertisseurs analogique-numériques fonctionnant jusqu'aux radio-fréquences. Dans ce travail nous abordons plus précisément l'étude de l'échantillonnage photoconductif pour le traitement de signaux entre 10 et 20 GHz. L'utilisation de matériau semiconducteur rapide (GaAs épitaxié à basse température) nous permet d'obtenir les bandes passantes requises alors que la propagation du signal microonde est assurée par un guide d'onde métallique déposé sur le substrat s

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14

Mason, Graeme. "Test and calibration of the Along Track Scanning Radiometer, a satellite-borne infrared radiometer designed to measure sea surface temperature." Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293406.

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15

Wolverson, D. "Optical and electronic properties of disordered semiconductors." Thesis, University of Exeter, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379465.

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16

Stott, Colin Mark. "Synthesis and photoconduction properties of haloanthanthrone pigments." Thesis, Open University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.255409.

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17

Faulks, Richard Wade. "Development of high performance terahertz photoconductive antennas." Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609730.

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18

Chegoor, Prashant. "Optical response of polycrystalline mercuric iodide photoconductive detectors." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001026.

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19

Khiabani, Neda. "Modelling, design and characterisation of terahertz photoconductive antennas." Thesis, University of Liverpool, 2013. http://livrepository.liverpool.ac.uk/14213/.

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The area of Terahertz (THz) is one of the fastest growing research fields in recent years. THz antennas based upon photoconduction techniques are the most common devices in THz systems. However, the radiated THz power from these devices and the efficiency are very low. Also, different antenna excitation and current generation process in THz antennas, as compared to microwave antennas, requires new analyses approaches. Therefore, the motivation of this thesis is to theoretically establish why the THz antenna is inefficient; from which, general methods to improve the performance of such antennas

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20

Wojtyk, James Taras Ché. "Studies of organic photochromic and photoconductive dye molecules." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0005/NQ42989.pdf.

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21

Baker, C. "Development of semiconductor materials for Terahertz photoconductive antennas." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.596274.

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Pulsed terahertz (THz) systems for spectroscopy and imaging are traditionally based on Ti:Sapphire femtosecond laser excitation, with low-temperature (LT)-GaAs photoconductive devices. A number of designs of GaAs photoconductive antennae were characterised in this thesis using 800 nm laser excitation. The THz power emitted was investigated as a function of specific antenna geometry, laser excitation position, laser power, and applied bias. The electric field profile of the devices under bias was investigated by electron beam induced current. These measurements give an indication of the device

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22

Wainwright, M. "New photoconductive polymers based on poly(N-vinylcarbazole)." Thesis, University of Leeds, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382880.

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23

Klingshim, Christopher J. "Infrared photoconductive PbTe film processing and oxygen sensitization." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/98614.

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Thesis: S.B. in Materials Science and Engineering, Massachusetts Institute of Technology, Department of Physics, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 33-34).<br>Infrared (IR) thermal detectors and photodetectors have significant applications including thermal imaging, infrared spectroscopy and chemical and biological sensing. In this work we focus on photodetectors, which typically use narrow gap semiconductor materials requiring cryogenic cooling to provide measurable signals above thermally generated noise. Our study investigates one cl

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24

Ezdi, Kamran [Verfasser]. "Analysis and Simulation of Photoconductive Terahertz Antennas / Kamran Ezdi." Aachen : Shaker, 2011. http://d-nb.info/1074088115/34.

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25

Lourenco, Manon d'Assuncao. "Evaluation of SIMOX substrates using photoconductive frequency resolved spectroscopy." Thesis, University of Surrey, 1991. http://epubs.surrey.ac.uk/776189/.

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26

Zhang, Yi. "Modelling of photoconductive switches in high voltage power applications." Thesis, University of Brighton, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239720.

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27

Stone, Michael Raymond. "Photoconductive emitters for pulsed and continuous-wave terahertz generation." Thesis, University of Leeds, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417735.

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28

Hodge, Clifford Charles. "Photoconductive and induced absorption studies of novel semiconductor superlattices." Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/46342.

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29

Gunda, Rahul. "Performance analysis of high power photoconductive switch at elevated temperature." Diss., Columbia, Mo. : University of Missouri-Columbia, 2005. http://hdl.handle.net/10355/4310.

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Thesis (M.S.)--University of Missouri-Columbia, 2005.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (July 13, 2006) Includes bibliographical references.

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30

Kim, Dae Sin. "Monte Carlo Modeling of Carrier Dynamics in Photoconductive Terahertz Sources." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11526.

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Carrier dynamics in GaAs-based photoconductive terahertz (THz) sources is investigated using Monte Carlo techniques to optimize the emitted THz transients. A self-consistent Monte Carlo-Poisson solver is developed for the spatio-temporal carrier transport properties. The screening contributions to the THz radiation associated with the Coulomb and radiation fields are obtained self-consistently by incorporating the three-dimensional Maxwell equations into the solver. In addition, the enhancement of THz emission by a large trap-enhance field (TEF) near the anode in semi-insulating (SI) photocond

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31

Saeedkia, Daryoosh. "Modeling and Design of Photoconductive and Superconductive Terahertz Photomixer Sources." Thesis, University of Waterloo, 2005. http://hdl.handle.net/10012/806.

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Terahertz technology is a fast growing field with variety of applications in biology and medicine, medical imaging, material spectroscopy and sensing, monitoring and spectroscopy in pharmaceutical industry, security, and high-data-rate short-range communications. Among different terahertz sources, photomixers are potentially compact, low power consuming, coherent, low-cost, and tunable continuous-wave sources. A terahertz photomixer is a heterodyne scheme, in which two laser beams with their frequency difference falling in the terahertz range mix in a nonlinear medium, such as a photocon

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32

Su, Hansheng. "Development of optically controlled FSS and antenna using photoconductive approach." Thesis, Queen Mary, University of London, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610933.

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33

Abdul-Niby, Mohammed. "Photoconductive frequency resolved spectroscopy for hydrogen and helium implanted silicon." Thesis, University of Surrey, 1997. http://epubs.surrey.ac.uk/804439/.

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34

Kowalczuk, Emma K. "Simulating, fabricating and characterising photoconductive microwave switches for RF applications." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/14968.

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Photoconductive microwave switches can be used in place of traditional microwave switches to reconfigure antennas and RF circuits. The switch, which consists of a silicon die placed over a gap in transmission line, is controlled by illumination via a fibre optic cable. Hence there is no requirement to design electrical biasing lines which may affect RF performance. This benefit is the main motivation behind further developing and understanding the photoconductive switch. The second motivation is the growing demand for reconfigurable antennas which necessitate certain switching requirements; on

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35

Ariaudo, Myriam. "Analyse théorique de la génération optoélectronique d'impulsions ultrabrèves par photoconduction." Limoges, 1996. http://www.theses.fr/1996LIMO0049.

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Les travaux de recherche presentes dans ce memoire traitent de l'analyse de la generation d'impulsions electromagnetiques ultracourtes par phenomene de photoconduction. L'utilisation grandissante de ces signaux dans des dispositifs optoelectroniques, tels qu'un interrupteur, un echantillonneur ou un autocorrelateur, necessite une connaissance et une maitrise des phenomenes physiques intervenant lors de l'interaction laser/matiere. L'outil numerique developpe est base sur la resolution des equations de maxwell et des equations des semiconducteurs par la methode des differences finies dans le do

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36

IVERSON, ARTHUR EVAN. "THE MATHEMATICAL MODELING OF TIME-DEPENDENT PHOTOCONDUCTIVE PHENOMENA IN SEMICONDUCTORS." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184068.

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This dissertation presents results pertaining to the mathematical modeling of semiconductor photoconductors and includes the formulation, analysis, and solution of photoconductive device model equations. The fundamental semiconductor device equations of continuity and transport are derived for the case of a material which contains a large density of deep-level impurities. Electron and hole trapping on deep-level impurities is accounted for by trapping-kinetics rate equations. The coupling between carrier drift and the electric field is completed through Poisson's equation. Simple, nonlinear mo

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37

Huang, Chih-Jung. "Opto-electronic class AB microwave power amplifier using photoconductive switch technology." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4458.

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Thesis (Ph.D.)--University of Missouri-Columbia, 2006.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (April 26, 2007) Vita. Includes bibliographical references.

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38

Kelkar, Kapil S. "Silicon carbide as a photoconductive switch material for high power applications." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4469.

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Thesis (Ph. D.) University of Missouri-Columbia, 2006.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on August 3, 2007) Includes bibliographical references.

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39

Vu, Nhan Trung. "Characterisation of cadmium selenide material for high speed photoconductive switching systems." Thesis, University of Brighton, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310102.

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40

O'Callaghan, Gregory Calum. "The serendipitous discovery of luminescent and liquid crystalline and photoconductive triphenoxazoles." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7845/.

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Triphenylene has been shown to possess interesting luminescent properties, such as a large pseudo Stokes shift and an excellent molar absorptivity coefficient. The research described in this thesis aims to focus on the serendipitous discovery of the incorporation of an oxazole moiety to the triphenylene core of alkoxytriphenylenes , and the study of the properties of this new class of material - triphenoxazole s- which show them to be highly luminescent, photoconducting and liquid crystalline . The thesis mainly focuses upon two series of alkoxytriphenoxazoles. 1) where the effects of incorpor

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41

Reynolds, Gillian Althea Maria. "Electronic transport and photoconductive properties of resorcinol-formaldehyde-based carbon aerogels." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/39370.

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42

Paslaski, Joel Yariv Amnon Yariv Amnon. "High speed optoelectronics : photodiodes, Q-switched laser diode and photoconductive sampling /." Diss., Pasadena, Calif. : California Institute of Technology, 1990. http://resolver.caltech.edu/CaltechETD:etd-05092007-084117.

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43

Abdulmunem, Oday Mazin [Verfasser], and Martin [Akademischer Betreuer] Koch. "New Materials for Photoconductive Terahertz Antennas / Oday Mazin Abdulmunem ; Betreuer: Martin Koch." Marburg : Philipps-Universität Marburg, 2017. http://d-nb.info/114312488X/34.

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44

DE, CARRE PATRICE. "Etude experimentale des proprietes de transport non stationnaire dans inp par photoconduction." Paris 11, 1990. http://www.theses.fr/1990PA112124.

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Le developpement de l'electronique rapide et de l'optoelectronique est associe a celui des semiconducteurs composes iii-v, dont inp. Ce travail porte sur l'etude experimentale des phenomenes de transport non stationnaire dans inp, par mesure de photocourant en regime permanent d'eclairement, sur des dispositifs semiconducteurs submicroniques de differentes longueurs. L'interpretation des resultats fait appel a des simulations numeriques de type monte-carlo. La structure de bande d'inp et les mecanismes d'interactions entre electrons et reseau cristallin sont decrits et permettent d'analyser le

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45

Haristoy, Denis. "Synthese, mesomorphisme et proprietes de photoconduction de cristaux liquides de type calamitique." Université Louis Pasteur (Strasbourg) (1971-2008), 2000. http://www.theses.fr/2000STR13167.

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Quatre differents types de mesogenes calamitiques comportant des curs rigides heteroaromatiques soufres ont ete synthetises. La substitution de ces curs par certaines natures de chaines a permis d'abaisser avec succes les temperatures de transition de phases. Les proprietes mesomorphes ont ete systematiquement caracterisees par microscopie optique en lumiere polarisee, analyse enthalpique differentielle et diffraction des rayons x. Ces analyses ont notamment permis de mettre en evidence pour un type de composes, une mesophase originale de type lamello-colonnaire pour laquelle nous avons propos

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46

Abdulmunem, Oday M. [Verfasser], and Martin [Akademischer Betreuer] Koch. "New Materials for Photoconductive Terahertz Antennas / Oday Mazin Abdulmunem ; Betreuer: Martin Koch." Marburg : Philipps-Universität Marburg, 2017. http://d-nb.info/114312488X/34.

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47

Gambaryan, K. M., V. G. Harutyunyan, V. M. Aroutiounian, T. Boeck, O. Marquardt, and F. Schuette. "InAsSbP-based Quantum Dot Mid-Infrared Photodetectors: Fabrication, Properties and Applications." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35354.

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The mid-infrared photoconductive cells (PCC) made of n-InAs(100) crystals with InAsSbP quantum dots (QDs) on the PCC surface, as well as InAsSbP-based diode heterostructures with QDs on epilayer–substrate interface are reported. Both QDs-based semiconductor structures are considered as attractive devices for several mid-infrared applications. The liquid phase epitaxy, AFM, TEM and STM techniques are utilized for the growth of QDs and epitaxial cap layers and their characterization, respectively. Anoma-lous photovoltaic effect is detected in PCC with type-II QDs. The open-circuit voltage and sh

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48

Erozbek, Gungor Ummugul. "Development Of A Compact Time-domain Terahertz Spectrometer Using Photoconductive Antenna Detection Method." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12610440/index.pdf.

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In this thesis, we describe the development of a time-domain terahertz (THz) spectrometer driven by two different laser sources: an Er-doped femtosecond fiber laser and a mode-locked Ti:Sapphire laser. The resulting THz electromagnetic radiation was generated and detected using photoconductive antenna detection methods in both systems. In these experiments we characterized the THz power output for both the fiber laser driven system and the Ti:Sapphire laser driven system. Emphasis is given throughout this thesis on understanding the working principles behind time-domain terahertz spectroscopy,

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49

Kaczmarek, Jean. "Mise en évidence des phénomènes de photoconduction dans des cristaux liquides ferroélectriques photosensibles." Thesis, Lille, 2018. http://www.theses.fr/2018LIL1R028.

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Les cristaux liquides ferroélectriques (CLF), photosensibles, sont susceptibles de générer des charges de surfaces s’ils sont soumis à un champ électrique ; cette propriété est mise à profit dans les dispositifs d’affichages à cadence rapide. Les CLF utilisés dans ce travail présentent une phase smectique C* ferroélectrique ; l’un est un mélange commercial utilisé comme matériau hôte, l’autre, un dérivé azobenzénique photosensible utilisé comme dopant (1, 3, 5%). Les propriétés optiques et ferroélectriques ont été étudiées en fonction de la concentration, de la température et du champ électriq

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50

Haddab, Karima. "Propriétés électroniques du silicium amorphe hydrogéné : courants limités par charge d'espace et photoconduction." Paris 11, 1988. http://www.theses.fr/1988PA112052.

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Les propriétés électroniques du silicium amorphe hydrogène sont déterminés par la densité d’états dans la bande interdite. A partir de la méthode des courants limités par charge d’espace (CLCE) sous excitation lumineuse, nous avons pu déterminer cette densité d’états dans un domaine d’énergie situé au-dessus du niveau de Fermi. Nous avons obtenu une densité d’états exponentielle de température caractéristique de l’order de 1000k. Nous proposons une discussion sur la différence dans les pentes de densité d’états déterminées à partir de la méthode précédente, de la méthode CLCE à l’obscurité et

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