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Dissertations / Theses on the topic 'Carrier Material'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Gilmore, Joseph M., Jared J. Sweetser, and Keith B. Klemm. "Analysis of aircraft carrier excess material offloaded to carp facilities." Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/10768.

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MBA Professional Report<br>The Consumable Asset Reutilization Program (CARP) is an organization established under Naval Supply Systems Command to provide a specific warehousing service for excess material generated by commands operating under the Navy Working Capital Fund. This warehousing service would receive excess consumable material that had possible future demand, and hold that material until demand on that item was realized. Annually, CARP processes approximately 70,000 excess offload transactions from aircraft carriers, amphibious assault ships, and naval air stations. Of the thr

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2

Liu, Yan. "Nanoscaled Oxygen Carrier Development for Chemical Looping Partial Oxidation of Methane." The Ohio State University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1618754731709306.

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3

van, Garderen Noémie. "Development of a new type of highly porous oxygen carrier support for fluidized bed reactors." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2013. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-108390.

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The production of fuel and chemicals is expected to be based on renewable energies in the next few years. However, combustion causes CO2 emission. Its reduction is one of the main focuses to regulate greenhouse effect, as expected by the Kyoto protocol. One combustion technology which could reduce CO2 emissions is chemical-looping combustion coupled to a CO2 capture device. This technique involves the use of a bed-material, with a size between 100 and 500 µm, composed of an oxide supported by a porous ceramic. This oxide acts as an oxygen carrier and circulates from a reducing atmosphere react

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4

Berrier, Audrey. "InP-based photonic crystals : Processing, Material properties and Dispersion effects." Doctoral thesis, KTH, Mikroelektronik och tillämpad fysik, MAP, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4734.

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Photonic crystals (PhCs) are periodic dielectric structures that exhibit a photonic bandgap, i.e., a range of wavelength for which light propagation is forbidden. The special band structure related dispersion properties offer a realm of novel functionalities and interesting physical phenomena. PhCs have been manufactured using semiconductors and other material technologies. However, InP-based materials are the main choice for active devices at optical communication wavelengths. This thesis focuses on two-dimensional PhCs in the InP/GaInAsP/InP material system and addresses their fabrication te

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5

Venkatapathi, Sarankumar. "Temperature effects on the electronic properties of lead telluride (PbTe) and the influence of nano-size precipitates on the performance of thermoelectric materials. (SrTe precipitates in PbTe bulk material)." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/51947.

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This study seeks to evaluate the temperature effects on the electronic properties of thermoelectric materials, using first principles Density Functional Theory (DFT) calculations by incorporating the temperature effects on structural properties of the material. Using the electronic properties attained, the charge carrier scattering relaxation times were determined. The effect of interface between PbTe and SrTe on the charge carrier mobility was studied by finding out the relative alignment of energy bands at the semiconductor heterojunction. The crystal shape of the SrTe precipitates in the Pb

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6

Asada, Satoshi. "Improvement of ON-Characteristics in SiC Bipolar Junction Transistors by Structure Designing Based on Analyses of Material Properties and Carrier Recombination." Kyoto University, 2019. http://hdl.handle.net/2433/242510.

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7

Wang, Lixin. "Optimal and Approximate Algorithms for the Multiple-Lots-per-Carrier Scheduling and Integrated Automated Material Handling and Lot Scheduling Problems in 300mm Wafer Fabs." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/28890.

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The latest generation of semiconductor wafer fabs produce Integrated Circuits (ICs) on silicon wafers of 300mm diameter. In this dissertation, we address the following two types of (new) scheduling problems that are encountered in this generation of wafer fabs: multiple-lots-per-carrier scheduling problem (MLCSP) and integrated automated material handling and lot scheduling problem (IMHLSP). We consider several variations of the MLCSP depending upon the number of machines used, the prevailing processing technology of the machines, and the type of objective functions involved. For the IMHLSP, w

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8

Muschielok, Christoph Johannes [Verfasser], Harald [Akademischer Betreuer] Oberhofer, Achim [Gutachter] Wixforth, and Harald [Gutachter] Oberhofer. "On the Charge Carrier Mobility and its Underlying Material Properties in the Context of Metal-Organic Frameworks / Christoph Johannes Muschielok ; Gutachter: Achim Wixforth, Harald Oberhofer ; Betreuer: Harald Oberhofer." München : Universitätsbibliothek der TU München, 2020. http://d-nb.info/1236342976/34.

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9

Martinez, Jose A., and Gavin D. Guidry. "Best Value Analysis of Tool/Individual Material Readiness List (IMRL) Items for Carrier Air Wing Five (CVW-5) F/A-18 Hornet Squadrons from NAF Atsugi to MCAS Iwakuni, Japan." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/7382.

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MBA Professional Report<br>Approved for public release, distribution unlimited<br>In 2005, a U.S.-Japan Security Consultative Committee agreed to shift the Carrier Air Wing Five (CVW-5) homeport from Atsugi Naval Air Station (NAS), Japan, to Marine Corps Air Station Iwakuni (MCASI), Japan, in 2016. Currently the 35 mile distance between Atsugi, where the air wing is based and Yokosuka, where the carrier is docked, does not constitute a significant burden to the supply chain. However, when CVW-5 F/A-18 Hornets are repositioned to MCAS Iwakuni, it will significantly impact transportation costs d

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10

Cropper, André D. "Carrier transport properties measurements in wide bandgap materials." Diss., Virginia Tech, 1995. http://hdl.handle.net/10919/38163.

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11

Cropper, André D. "Carrier transport properties measurements in wide bandgap materials /." This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-06062008-162117/.

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12

Liu, Qingxia 1961. "An innovative approach in magnetic carrier technology /." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=42083.

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Magnetic carrier technology (MCT) has found a wide range of applications, including biological cell separation, waste remediation, and raw material recovery. The challenge to MCT is to develop a new method for the preparation of magnetic carriers with the following features: high density of reactive functional groups, diversity of functionalities, and durability of surface films. In this thesis, two novel methods, molecular self-assembly and silanation, were developed for the preparation of magnetic carriers.<br>In molecular self-assembly, 16-mercaptohexadecanoic acid (HOOC-$ rm C sb{15}H sb{3

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13

Pahner, Paul. "Charge Carrier Trap Spectroscopy on Organic Hole Transport Materials." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-217882.

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Electronic circuits comprising organic semiconductor thin-films are part of promising technologies for a renewable power generation and an energy-efficient information technology. Whereas TV and mobile phone applications of organic light emitting diodes (OLEDs) got ready for the market awhile ago, organic photovoltaics still lack in power conversion efficiencies, especially in relation to their current fabrication costs. A major reason for the low efficiencies are losses due to the large number of charge carrier traps in organic semiconductors as compared to silicon. It is the aim of this thes

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14

Alexeev, Evgeny. "Hot-carrier luminescence in graphene." Thesis, University of Exeter, 2015. http://hdl.handle.net/10871/18231.

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In this thesis, the effect of the sample properties on the characteristics of the hot carrier luminescence in graphene is investigated. The present work focuses on the two main issues described below. The first issue is the modification effects of near-infrared pulsed laser excitation on graphene. For excitation fluences several orders of magnitude lower than the optical damage threshold, the interaction with ultrafast laser pulses is found to cause a stable change in the properties of graphene. This photomodification also results in a decrease of the hot photoluminescence intensity. The detai

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15

Rekemeyer, Paul Harlan. "Nanostructured photovoltaics : improving device efficiency and measuring carrier transport." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/108841.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2017.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 153-163).<br>Photovoltaics (PV) offer a promising route to combat climate change. However, the growth rate of the dominant commercial photovoltaic (PV) technology is limited by large capital expenditure requirements. This motivates fun

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16

Hempel, Hannes [Verfasser]. "Investigation of Charge Carrier Dynamics in Novel Photovoltaic Materials / Hannes Hempel." Berlin : Freie Universität Berlin, 2020. http://d-nb.info/1205736069/34.

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17

SORANZIO, DAVIDE. "Ultrafast lattice and carrier dynamics in Weyl and Kane quantum materials." Doctoral thesis, Università degli Studi di Trieste, 2021. http://hdl.handle.net/11368/2981744.

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The PhD research project was focused on the ultrafast lattice and electron dynamics in quantum materials presenting Weyl- and Kane-like dispersions in the energy-momentum space. The objective was to study their peculiarities and differences on which there is a strong interest of the scientific community from the theoretical viewpoint and for their implementation in innovative electric devices. The experimental investigation was performed using laser setups generating ultrashort laser pulses, with pulse duration between tens and thousand femtoseconds depending on the phenomenon under analysis.

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18

He, Wei. "Ultrafast dynamics of photoexcited carriers in semiconducting nano materials." Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/6064/.

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This thesis presents a systematic study on the characterising ultrafast dynamics of photo excited carriers in hydrogenated nano crystalline silicon (nc-Si:H) and porous silicon (PS) materials using the ultrafast optical pump probe spectroscopy approaches. The work involves the ground state optical property detection and optical model simulation, ultrafast time resolved pump probe measurements and pump probe data analysis processes. Applying the novel pump probe detection methods, the study explores the carriers concentration, carriers recombination property, scattering rate and conductivity of

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19

Sim, Jai S. "Ultra-Thin Oxide Membranes: Synthesis and Carrier Transport." Thesis, Harvard University, 2015. http://nrs.harvard.edu/urn-3:HUL.InstRepos:14226068.

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Self-supported freestanding membranes are films that are devoid of any underlying supporting layers. The key advantage of such structures is that, due to the lack of substrate effects - both mechanical and chemical, the true native properties of the material can be probed. This is crucial since many of the studies done on materials that are used as freestanding membranes are done as films clamped to substrates or in the bulk form. This thesis focuses on the synthesis and fabrication as well as electrical studies of free standing ultrathin < 40nm oxide membranes. It also is one of the first de

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20

BIDDECI, Giuseppa. "Materiali argillosi ibridi con potenziale attività biologica." Doctoral thesis, Università degli Studi di Palermo, 2021. http://hdl.handle.net/10447/479013.

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21

TARONI, TOMMASO TANCREDI ALESSANDRO. "SURFACE TAILORING OF OXIDE-BASED NANOSYSTEMS FOR THE DESIGN OF ADVANCED COMPOSITE MATERIALS AND SMART DEVICES." Doctoral thesis, Università degli Studi di Milano, 2021. http://hdl.handle.net/2434/828945.

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Abstract My Ph.D. project focused on the tailoring of the surface properties of oxide substrates for the preparation of advanced composite materials and devices. The initial focus of my research activity was the surface modification of halloysite nanotubes (HNT), a natural material with unique structural features. I then extended my investigation to other oxides (titanium dioxide, TiO2, and Superparamagnetic Iron Oxide Nanoparticles, SPION), applying the surface modification approaches developed for HNT substrates. The resulting oxide-based hybrid systems showed promising properties as stim

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22

Man, Gabriel Jen Shi. "Metal Oxide/Semiconductor Heterojunctions as Carrier-Selective Contacts for Photovoltaic Applications." Thesis, Princeton University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10265452.

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<p> Solar radiation is a vast, distributed, and renewable energy source which Humanity can utilize via the photovoltaic effect. The goal of photovoltaic technology is to minimize the true costs, while maximizing the power conversion efficiency and lifetime of the cell/module. Interface-related approaches to achieving this goal are explored here, for two technologically-important classes of light absorbers: crystalline-silicon (c-Si) and metal halide perovskite (MHP). The simplest solar cell consists of a light absorber, sandwiched between two metals with dissimilar work functions. Carrier-sele

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23

Hamedi, Rad Mina. "Processing and Evaluation of Next Generation Oxygen Carrier Materials for Chemical Looping Combustion." University of Toledo / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1433242011.

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24

Gerling, Sarabia Luis Guillermo. "Characterization of alternative carrier selective materials and their application to heterojunction solar cells." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/461636.

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Crystalline silicon (c-Si) solar cells can be considered a highly industrialized and mature product with a record conversion efficiency of 26.6%, not far from the practical limit of 29.4% (for single p/n junction devices). Accordingly, current research and development are addressing some remaining efficiency and cost limitations, including the reduction of (1) carrier recombination in highly doped materials, (2) parasitic absorption by narrow band gap films and (3) high temperature energy-intensive processing (especially critical for wafer thicknesses below 100 µm). In parallel, thin-film PV

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25

Durgun, Özben Eylem [Verfasser]. "Carrier mobility in advanced channel materials using alternative gate dielectrics / Eylem Durgun Özben." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2013. http://d-nb.info/1047325489/34.

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26

Xu, Wenwei. "Carrier transport characterization and thin film transistor applications of amorphous organic electronic materials." HKBU Institutional Repository, 2013. http://repository.hkbu.edu.hk/etd_ra/1542.

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27

Martin, Christopher S. "Controlled Release of Alkalinity Using pH-Responsive Polymer Carriers." Thesis, Tufts University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10165326.

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<p> Low groundwater pH is frequently cited as inhibiting the performance of in-situ bioremediation of chlorinated solvents at contaminated sites. A common method of pH control is injection of solutions containing alkalinity, but alternatives for prolonged, passive pH control are needed. This work explores pH-responsive hydrogel coatings on MgO nanoparticles as vehicles for controlled release of alkalinity. Chitosan cross-linked with glutaraldehyde was evaluated as a representative hydrogel coating. The effects of coating thickness and cross-linking on the rate of alkalinity release were experi

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28

Yong, Chaw Keong. "Ultrafast carrier dynamics in organic-inorganic semiconductor nanostructures." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:b2efdc6a-1531-4d3f-8af1-e3094747434c.

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This thesis is concerned with the influence of nanoscale boundaries and interfaces upon the electronic processes that occur within the inorganic semiconductors. Inorganic semiconductor nanowires and their blends with semiconducting polymers have been investigated using state-of-the-art ultrafast optical techniques to provide information on the sub-picosecond to nanosecond photoexcitation dynamics in these systems. Chapters 1 and 2 introduce the theory and background behind the work and present a literature review of previous work utilising nanowires in hybrid organic photovoltaic devices, reve

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29

Lenahan, Frances Daggett. "Photoconductivity and minority carrier lifetime in tin sulfide and gallium arsenide semiconductors for photovoltaics." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/104147.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2016.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 54-55).<br>The growth and maintenance of the modern technological world requires immediate solutions in the field of clean, renewable energy. One prominent solution is the rapid advancement of solar cell technologies due to the wide avai

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30

Poindexter, Jeremy Roger. "Defects and charge-carrier lifetime in early-stage photovoltaic materials : relating experiment to theory." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/117801.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2018.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged student-submitted from PDF version of thesis.<br>Includes bibliographical references (pages 171-187).<br>To minimize risks associated with climate change, we must rapidly reduce greenhouse gas emissions worldwide by shifting reliance away from fossil fuels. Solar photovoltaic (PV) modules are well suited for reducing emission

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31

Rijal, Upendra. "Suppressed Carrier Scattering in Cadmium Sulfide-Encapsulated Lead Sulfide Nanocrystal Films." Bowling Green State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1402409476.

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32

Elmer, S. J. "Monte Carlo modelling of carrier transport within amorphous materials used in the electrophotography process." Thesis, Swansea University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636793.

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Monte Carlo techniques have been applied to the field of electrophotography in order to simulate a variety of xerographic dark discharge mechanisms. The work is divided into two sections, each of which concentrates on a particular discharge mechanism. The first is concerned with the transport of surface carriers that drift through the bulk of a sample under the influence of a local internal field (Surface Injection model). Simulations were performed for both trap-free carrier transport and trap-limited band transport in which the trapping centres were distributed over a range of energies. Resu

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33

Stark, Thomas S. "Picosecond Dynamics of Free-Carrier Populations, Space-Charge Fields, and Photorefractive Nonlinearities in Zincblende Semiconductors." Thesis, University of North Texas, 1999. https://digital.library.unt.edu/ark:/67531/metadc2202/.

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Generally, nonlinear optics studies investigate optically-induced changes in refraction or absorption, and their application to spectroscopy or device fabrication. The photorefractive effect is a nonlinear optical effect that occurs in solids, where transport of an optically-induced free-carrier population results in an internal space-charge field, which produces an index change via the linear electrooptic effect. The photorefractive effect has been widely studied for a variety of materials and device applications, mainly because it allows large index changes to be generated with laser beams h

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34

McAdoo, James Alexander. "Factors affecting carrier transport in ultrafast III-V compound semiconductor based photodiodes." W&M ScholarWorks, 2000. https://scholarworks.wm.edu/etd/1539623974.

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This dissertation describes a comparative study conducted on GaAs MSM photodetectors to assess the importance of surface effects on the optical and frequency response characteristics of MSM photodetectors. MSM photodetectors on III-V compound semiconductors are technologically important because of their applications to fiber optic communication systems. While surface effects have been previously ignored, they must be considered in assessing the ultimate performance limits of such devices, especially if nanoscale MSM photodetectors are to be used. A controlled study was carried out in which hig

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35

Hu, Ruibo. "CITRIC ACID-MODIFIED HYDROXYAPATITE NANOPARTICLES AS AN ANTIBIOTIC CARRIER." University of Akron / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1619199363230699.

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36

Meeker, Michael A. "Spin and Carrier Relaxation Dynamics in InAsP Ternary Alloys, the Spin-orbit-split Hole Bands in Ferromagnetic InMnSb and InMnAs, and Reflectrometry Measurements of Valent Doped Barium Titanate." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/83494.

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This dissertation focuses on projects where optical techniques were employed to characterize novel materials, developing concepts toward next generation of devices. The materials that I studied included InAsP, InMnSb and InMnAs, and BT-BCN. I have employed several advanced time resolved and magneto-optical techniques to explore unexplored properties of these structures. The first class of the materials were the ternary alloys InAsP. The electron g-factor of InAsP can be tuned, even allowing for g=0, making InAsP an ideal candidate for quantum communication devices. Furthermore, InAsP shows

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37

Halseid, Rune. "Ammonia as Hydrogen Carrier. Effects of Ammonia on Polymer Electrolyte Membrane Fuel Cells." Doctoral thesis, Norwegian University of Science and Technology, Department of Materials Technology, 2004. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-675.

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38

Jatmiko, Widiya [Verfasser]. "Assessment of the melting behavior of batches containing boron oxide carrier raw materials / Widiya Jatmiko." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2014. http://d-nb.info/1057036986/34.

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39

Roland, Paul Joseph. "Charge Carrier Processes in Photovoltaic Materials and Devices: Lead Sulfide Quantum Dots and Cadmium Telluride." University of Toledo / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1449857685.

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40

Piccioni, Alberto <1993&gt. "Studies of the charge carrier dynamics and photoelectrocatalytic properties of V-modified TiO2 thin films." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amsdottorato.unibo.it/9729/1/Piccioni_Alberto_tesi.pdf.

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This thesis aims to study the modifications induced by vanadium in titanium dioxide, an oxide semiconductor used for photoelectrocatalytic applications, such as water-splitting for hydrogen production and air and water remediation. The modification of this material is necessary to improve its conversion efficiency of light into chemical energy. In fact, its main limitation is the poor visible light absorption due to its wide energy gap (3.2 eV). In this work, V was introduced during the preparation of the sample, either in form of thin films or nanoparticles, using radio-frequency magnetron sp

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Ciechonski, Rafal. "Growth and characterization of SiC and GaN." Doctoral thesis, Linköpings universitet, Materiefysik, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-10314.

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At present, focus of the SiC crystal growth development is on improving the crystalline quality without polytype inclusions, micropipes and the occurrence of extended defects. The purity of the grown material, as well as intentional doping must be well controlled and the processes understood. High-quality substrates will significantly improve device performance and yield. One of the aims of the thesis is further understanding of polytype inclusion formation as well as impurity control in SiC bulk crystals grown using PVT method also termed seeded sublimation method. Carbonization of the source

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42

Medved, Mitja. "Novel methods and materials in development of liquid carrier membranes from the molecule to the process /." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=981514073.

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Husek, Jakub. "Elucidating Surface Charge Carrier Dynamics of Functional Materials By Femtosecond Transient Extreme Ultraviolet Reflection-Absorption Spectroscopy." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1553099994360381.

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44

Cheater, Brian James. "Fatigue life of bulk carrier side shell frame lower toes as a function of ship length and loading condition." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0015/MQ55492.pdf.

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45

Levato, Riccardo. "Injectable biodegradable carriers for the delivery of therapeutic agents and tissue engineering." Doctoral thesis, Universitat Politècnica de Catalunya, 2015. http://hdl.handle.net/10803/285661.

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The design of smart biomaterial devices plays a key role to improve the way conventional therapies are being delivered, and to promote the development of new approaches for advanced therapies, such as regenerative medicine and targeted drug release. Injectable biodegradable materials, such as those consisting of suspensions of polymeric particles, are highly versatile devices that can be delivered through minimally-invasive injections. The physic-chemical properties of the particles can be engineered to obtain smart scaffolds for tissue engineering, carriers for drug release and cell therapy.

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Green, Travis Christopher. "Photo-induced charge carrier dynamics and self-organization in semiconductor and metallic nanocrystals : in between the bulk and individual molecules." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/30480.

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47

Manolis, Georgios. "Optical and electrical properties of highly excited 3C-SiC crystals and heterostructures." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130327_100309-52190.

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This thesis is dedicated to investigation of carrier dynamics in 3C-SiC crystals and heterostructures by using light-induced transient gratings and differential transmission techniques. The experimental studies in a wide range of excess carrier densities and temperatures revealed the influence of several particular growth conditions in different growth techniques on electronic properties of grown layers, and hence, a possibility to characterize indirectly the structural perfection of a layer by non-destructive optical means. Based on these results, we were able to evaluate and compare quality

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Manolis, Georgios. "Stipriai sužadintų 3C-SiC kristalų ir heterostruktūrų optinės ir elektrinės savybės." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130327_100318-26536.

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Disertacija yra skirta krūvininkų dinamikos tyrimams 3C-SiC kristaluose ir heterostruktūrose naudojant šviesa indukuotų dinaminių gardelių ir diferencinio pralaidumo metodikas. Atlikti tyrimai plačiame žadinimų ir temperatūros intervale atskleidė skirtingų auginimo technologijų ir jų tam tikrų parametrų įtaką opto-elektroninėms užaugintų sluoksnių savybėms, kas įgalino atlikti medžiagos neardančią, optinę kristalų struktūrinės kokybės charakterizaciją. Remiantis gautais rezultatais mes galėjome palyginti visomis plačiausiai naudojamomis auginimo technologijomis užaugintų 3C-SiC bandinių kokybę

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49

Olszak, Peter D. "Nonlinear absorption and free carrier recombination in direct gap semiconductors." Doctoral diss., University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4620.

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Nonlinear absorption of Indium Antimonide (InSb) has been studied for many years, yet due to the complexity of absorption mechanisms and experimental difficulties in the infrared, this is still a subject of research. Although measurements have been made in the past, a consistent model that worked for both picosecond and nanosecond pulse widths had not been demonstrated. In this project, temperature dependent two-photon (2PA) and free carrier absorption (FCA) spectra of InSb are measured using femtosecond, picosecond, and nanosecond IR sources. The 2PA spectrum is measured at room temperature w

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50

Ray, Kamal Kanti. "Characterization of phase state, morphological, mechanical and electrical properties of nano- and macro-dimensional materials." Diss., University of Iowa, 2019. https://ir.uiowa.edu/etd/7017.

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The importance of studying the physico-chemical properties of nano-dimensional materials has gained significant attention in the fields of semiconductors, pharmaceuticals, materials science, and atmospheric chemistry owing to the differences in physical properties between macro- and nano-dimensional solids. Nonetheless, direct studies of physical properties of materials at nanoscale is limited in part due to their inherent size constraints and experimental limitations. However, development of atomic force microscopy (AFM) led to the implementation of methods to characterize a wide range of phy

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