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Dissertations / Theses on the topic 'Diodes'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Mohib, Abdul. "Molecular diodes." Thesis, Cranfield University, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.439279.

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2

ECKLE, MICHEL. "Diodes organiques electroluminescentes." Université Louis Pasteur (Strasbourg) (1971-2008), 2001. http://www.theses.fr/2001STR13008.

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Le developpement de l'electroluminescence de couches minces composees de matieres organiques debute dans les annees 80 avec les travaux de tang et van slyke. Plus tard la technique d'auto-assemblage couche par couche permet l'incorporation de polymeres conducteurs dans les films minces. Le poly(p-phenylene vinylene) (ppv) est le polymere electroluminescent le plus utilise dans les etudes portant sur les diodes organiques polymeriques. Son incorporation dans l'architecture du film se fait via son precurseur cationique non conjugue et soluble qui est converti in-situ en la forme finale du polyme

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3

Belhadj-Yahya, Chedly. "Evaluation of the quantum well tunneling diode and the quantum electron-wave interference diode as high speed devices." Diss., Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/15348.

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4

Lochner, Zachary Meyer. "Green light emitting diodes and laser diodes grown by metalorganic chemical vapor deposition." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33827.

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This thesis describes the development of III-Nitride materials for light emitting applications. The goals of this research were to create and optimize a green light emitting diode (LED) and laser diode (LD). Metalorganic chemical vapor deposition (MOCVD) was the technique used to grow the epitaxial structures for these devices. The active regions of III-Nitride based LEDs are composed of InₓGa₁₋ₓN, the bandgap of which can be tuned to attain the desired wavelength depending on the percent composition of Indium. An issue with this design is that the optimal growth temperature of InGaN is lower

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5

Stevenson, Stuart G. "Dendrimer light-emitting diodes." Thesis, St Andrews, 2008. http://hdl.handle.net/10023/581.

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6

Dussaigne, Amélie. "Diodes électroluminescentes blanches monolithiques." Phd thesis, Université de Nice Sophia-Antipolis, 2005. http://tel.archives-ouvertes.fr/tel-00332387.

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Ce travail concerne la croissance par épitaxie sous jets moléculaires avec NH3 comme source d'azote de diodes électroluminescentes (DELs) blanches monolithiques. La méthode proposée au laboratoire consiste à insérer dans la zone active de la DEL des puits quantiques (Ga,In)N émettant dans le bleu et le jaune. Bien que la concentration en In de l'alliage InxGa1-xN soit limitée à 20-25%, la présence d'un champ électrique interne dans les hétérostructures nitrures permet d'obtenir des longueurs d'onde balayant tout le spectre visible. Malheureusement, ce champ électrique diminue aussi la force d'

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7

Brezeanu, Mihai. "Diamond Schottky barrier diodes." Thesis, University of Cambridge, 2008. https://www.repository.cam.ac.uk/handle/1810/226757.

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Research on wide band gap semiconductors suitable for power electronicdevices has spread rapidly in the last decade. The remarkable results exhibited bysilicon carbide (SiC) Schottky batTier diodes (SBDs), commercially available since2001, showed the potential of wide band gap semiconductors for replacing silicon (Si)in the range of medium to high voltage applications, where high frequency operationis required. With superior physical and electrical properties, diamond became apotential competitor to SiC soon after Element Six reported in 2002 the successfulsynthesis of single crystal plasma de

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8

Lau, Fat Kit. "Tapered waveguide laser diodes." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611648.

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9

Snaith, Henry James. "Polymer based photovoltaic diodes." Thesis, University of Cambridge, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.614761.

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10

Choi, Wai Kit. "Organic light-emitting diodes." HKBU Institutional Repository, 1999. http://repository.hkbu.edu.hk/etd_ra/190.

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11

Tsao, Jenn. "Modeling of silicon diodes." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184437.

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A relatively simple, yet complete analytical model for predicting the performance of illuminated or unilluminated (dark) pn diodes with arbitrary doping profiles is developed and presented in this dissertation. It can be used to calculate the saturation current, minority carrier density, short circuit current, spectral response, and effective low-high (p-p⁺) junction recombination velocities of such diodes. The model is applied to dark or illuminated n⁺-p-p⁺ diodes as a function of the front and back surface recombination velocities and the bulk doping profiles. The analysis includes heavy dop

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12

Perez, Gaëtan. "Caractérisation de diodes Schottky en diamant de structure pseudo-verticale." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAT051/document.

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Le diamant est souvent défini comme le matériau ultime pour la réalisation de composants à semi-conducteurs pour des applications d'électronique de puissance. Bien que plusieurs interrupteurs de puissance en diamant soient parus à l'échelle mondiale, ils sont à l'heure actuelle à l'état de prototype et de preuve de concept. Il est donc nécessaire de comprendre leurs mécanismes de fonctionnement afin de pouvoir utiliser tout leur potentiel dans des convertisseurs de puissance. Dans cette thèse, l'analyse se focalise sur des diodes Schottky en diamant de structure pseudo-verticale. Des caractéri

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13

Cappuccio, Joseph C. "Semiconductor laser diodes and the design of a D.C. powered laser diode drive unit/." Thesis, Monterey, California. Naval Postgraduate School, 1988. http://hdl.handle.net/10945/23114.

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This thesis addresses the design, development and operational analysis of a D.C. powered semiconductor laser diode drive unit. A laser diode requires an extremely stable power supply since a picosecond spike of current or power supply switching transient could result in permanent damage. The design offers stability and various features for operational protection of the laser diode. The ability to intensity modulate (analog) and pulse modulate (digital) the laser diode output for data transmission was a major design consideration. Laser optical power is controlled via a closed loop system using

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14

Bizetto, César Augusto. "Caracterização das propriedades dosimétricas de diodos de silício empregados em radioterapia com feixe de fótons." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-08082013-164400/.

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No presente trabalho foi estudada a resposta de diodos epitaxiais (EPI) e fusão zonal (FZ) como dosímetros on-line em tratamentos radioterápicos com feixe de fótons na faixa de megavoltagem (diodo tipo EPI)e ortovoltagem (diodos tipo EPI e FZ). Para serem usados como dosímetros os diodos foram encapsulados em sondas de polimetilmetacrilato preto (PMMA). Para as medidas da fotocorrente os dispositivos foram conectados a um eletrômetro Keithley® 6517B no modo fotovoltaico. As irradiações foram feitas com feixes de fótons de 6 e 18 MV (acelerador Siemens Primus®),6 e 15 MV (acelerador Nov

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15

Barberato, Fernanda. "Estudo de sistemas foto- e eletroluminescentes contendo polifluoreno fluorado e rubreno para aplicação em diodos emissores de luz poliméricos." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-19092014-120936/.

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O presente trabalho teve como objetivo o estudo da aplicação de um novo polímero, o poli [2,7(9,9dioctilfluoreno)alt1,4fluorfenileno], dopado com o 5,6,11,12tetrafenilnaftaceno (rubreno), como camada ativa de diodos emissores de luz poliméricos, os PLEDs. O polímero semicondutor polifluoreno fluorado (PFF), da classe dos polifluorenos, foi sintetizado por meio da reação de acoplamento via rota de Suzuki, onde ao final da síntese apresentou um rendimento de processo de 95%. O polímero foi caracterizado por diversas técnicas analíticas a fim de comprovar a formação da estrutura molecular previst

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16

Rosenow, Thomas. "White Organic Light Emitting Diodes." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-67342.

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Die vorliegende Arbeit beschäftigt sich mit drei Ansätzen der hocheffizienten Erzeugung von weißem Licht mit organischen Leuchtdioden (OLEDs) auf der Basis kleiner Moleküle. Ein Ansatz kombiniert die Emission eines fluoreszenten und zweier phosphoreszenter Emitter in einer einzelnen Emissionsschicht. Da das Triplettniveau des verwendeten Blauemitters niedriger ist als die Triplettniveaus der phosphoreszenten Emitter, werden die Konzentrationen der Emitter so gewählt, dass ein Exzitonenübertrag zwischen ihnen unterbunden wird. Die strahlungslose Rekombination von Tripletts auf dem fluoreszente

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17

Van, Dommelen Ronnie Francis. "Bistable distributed feedback laser diodes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0020/MQ48293.pdf.

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18

Thomschke, Michael. "Inverted Organic Light Emitting Diodes." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-106255.

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This study focuses on the investigation of the key parameters that determine the optical and electrical characteristics of inverted top-emitting organic light emitting diodes (OLED). A co-deposition of small molecules in vacuum is used to establish electrically doped films that are applied in n-i-p layered devices. The knowledge about the functionality of each layer and parameter is important to develop efficient strategies to reach outstanding device performances. In the first part, the thin film optics of top-emitting OLEDs are investigated, focusing on light extraction via cavity tuning, e

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19

Gray, Jonathan William. "Resonant cavity light emitting diodes." Thesis, Imperial College London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399518.

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20

Hemingway, Leon Robert. "Dendrimers for light emitting diodes." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325840.

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21

Huang, G. "Wavelength stabilisation in laser diodes." Thesis, University of Cambridge, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.604711.

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This thesis discusses the wavelength stabilisation of semiconductor lasers for WDM applications. The motivation is to explore the potential of a novel athermal WDM laser with much less wavelength drift than conventional lasers, and without the traditional external temperature compensation units. The study is mainly theoretical, but some experimental work is included. Based on the Cambridge time domain model, intensive simulation has been done to investigate the design space of DBR lasers. Although the structure of the initial prototype DBR model is simple, the simulation output results are rat

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22

Liu, Yee-Chen. "Polymer blend light-emitting diodes." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610709.

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23

Spencer, Peter David. "Quantum dot bilayer laser diodes." Thesis, Imperial College London, 2008. http://hdl.handle.net/10044/1/1413.

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Optical communication was developed to allow high-speed and long-distance data transmission and is currently a £6bn market. This has also led to the adoption of optical technologies in other areas including the CD, DVD and medical imaging systems. Standardisation of components means that these systems require light sources that operate near the 1310 and 1550 nm telecommunications windows but existing lasers here are expensive due to their high temperature sensitivity. The exploitation of quantum con¯nement has led to the development of \quan- tum dot" (QD) laser material because of predictions

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24

Kwong, Chin Fai. "Molecularly doped organic electroluminescent diodes." HKBU Institutional Repository, 2000. http://repository.hkbu.edu.hk/etd_ra/254.

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25

Meyers, Mark. "Laser diodes incorporating diffractive features /." Online version of thesis, 1990. http://hdl.handle.net/1850/11233.

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26

Newton, Marcus Christian. "Zinc oxide tetrapod nanocrystal diodes." Thesis, University College London (University of London), 2007. http://discovery.ucl.ac.uk/1446460/.

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Advances in fabrication and analysis tools have allowed the synthesis and manipulation of functional materials with features comparable to fundamental physical length scales. Many interesting properties inherently due to quantum size effects have been observed in nanometre scale structures. It is hoped that these nanoscale structures will play a key role in future materials and devices that exploit their unique properties. Zinc oxide (ZnO) is a wide band-gap transparent and piezoelectric semiconductor material. It also has a large exciton binding energy which allows for stable ultraviolet ligh

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27

Dhoopati, Swathi. "Evaluation of dynamic and static electrical characteristics for the DY8 and YI8 process gallium diodes in comparison to the DI8 process boron diodes." Thesis, University of North Texas, 2006. https://digital.library.unt.edu/ark:/67531/metadc5614/.

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A rectifier is an electrical device, comprising one or more semiconductor devices arranged for converting alternating current to direct current by blocking the negative or positive portion of the waveform. The purpose of this study would be to evaluate dynamic and static electrical characteristics of rectifier chips fabricated with (a) DY8 process and (b) YI8 process and compare them with the existing DI8 process rectifiers. These new rectifiers were tested to compare their performance to meet or exceed requirements of lower forward voltages, leakage currents, reverse recovery time, and greate

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28

Jin, Niu. "Si-based quantum functional tunneling devices and their applications to logic and other future circuit topologies." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1092769809.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xxv, 201 p.; also includes graphics Includes bibliographical references (p. 188-201). Available online via OhioLINK's ETD Center

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29

Landowshi, Matthew M. "Modeling and analysis of reverse recovery in PiN power diodes in series." Honors in the Major Thesis, University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/1101.

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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.<br>Bachelors<br>Engineering and Computer Science<br>Electrical Engineering

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30

CAMARGO, FABIOLA de A. "Laser de Nd:YVOsub(4) bombeado transversalmente em configuração com ângulo rasante interno." reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11406.

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Made available in DSpace on 2014-10-09T12:51:35Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:58:17Z (GMT). No. of bitstreams: 0<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP<br>FAPESP:03/10164-9

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31

Crutchley, Benjamin G. "Investigation into the efficiency limitations of InGaN-based light emitters." Thesis, University of Surrey, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.583342.

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32

Li, Zonglin, and 李宗林. "Reliability study of InGaN/GaN light-emitting diode." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B43224155.

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33

De, Jaeger Jean-Claude. "Structures à hétérojonction pour la conception de diodes à avalanches et temps de transit à très haut rendement." Lille 1, 1985. http://www.theses.fr/1985LIL10060.

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Cette étude a pour objectif l'analyse théorique et expérimentale des performances potentielles d'hétérostructures IMPATT qui sont obtenues à partir de matériaux qui présentent des caractéristiques physiques favorables par la réalisation des différentes zones du dispositif. Pour cela, deux méthodes sont envisageables : association d'un matériau fortement ionisant pour la zone d'avalanche à un autre faiblement ionisant pour la zone de transit (hétérostructure Ge/AsGa ou GaInAs/InP) ; conception d'une zone de transit où l'évolution spatio-temporelle de la vitesse des porteurs est optimale (hétéro

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34

Li, Zonglin. "Reliability study of InGaN/GaN light-emitting diode." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B43224155.

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35

Tai, Feng-i. "Photochromic molecules in polymer switch diodes." Thesis, Linköping University, Department of Science and Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-6810.

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<p>Photochromism has been investigated extensively during recent years. The large interest for information storage in memory applications is associated with the bi-stable character of the photochromism phenomena. In molecular photochromics, two isomers with different absorption spectrum can be obtained according to the specific wavelength of the light exposure. This reversible transformation process can be considered as optical writing/erasing step of a memory.</p><p>Here we first report the absorption spectra of solid-state films based on the blends consisting of PC molecules, the spirooxazin

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36

Galata, Sotiria. "Sulphur doped silicon light emitting diodes." Thesis, University of Surrey, 2005. http://epubs.surrey.ac.uk/842933/.

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In this thesis light emission from sulphur related impurity in silicon has been reported. Although, sulphur related luminescence from silicon has been stated since the 1980's, no room temperature luminescence has been achieved and no compatible devices that can be integrated to the silicon technology have been invented. Photoluminescence and electroluminescence experiments were made on a set of samples implanted with only with sulphur at doses ranging from 1011-1014 S cm-2 at 30 keV, annealed at 1000 °C or 1100 °C for 10 s and on another set of samples implanted with sulphur as above a

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37

Siddiqui, Saiful Anam. "Erbium doped silicon light emitting diodes." Thesis, University of Surrey, 2003. http://epubs.surrey.ac.uk/843408/.

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Erbium, a rare earth element, has been shown to exhibit characteristic luminescence at 1.54mum due to its internal 4f transition from the first excited state (4pi3/2) to the ground state (4pi5/2). As this emission wavelength falls inside the maximum transmission window of silicon based optical fibers, erbium doped silicon might lead to the opportunity of silicon based optoelectronics. The introduction of erbium in silicon allows excitation through electron-hole recombination and subsequent radiative emission from the rare earth centers. The works reported here describe the structural, electric

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38

Maguiraga, Mohamadou. "Dimensionnement des excitatrices à diodes tournantes." Mémoire, École de technologie supérieure, 2006. http://espace.etsmtl.ca/523/1/MAGUIRAGA_Mohamadou.pdf.

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L'objectif de ce travail est d'une part, de connaître et d'identifier les paramètres de construction qui engendrent, le plus, le phénomène d'empiétement des diodes tournantes des excitatrices brushless. D'autre part, il vise à proposer une structure de contrôle PID afin d'améliorer le temps de réponse en tension des excitatrices à diodes tournantes. Les résultats attendus vont contribuer à un meilleur dimensionnement des excitatrices pour des générateurs hydrauliques. Pour traiter ce problème, nous avons mis à contribution une revue de littérature détaillée et développé un modèle mathémat

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39

Webster, Graham R. "Advanced polymers for light emitting diodes." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393551.

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40

Liedtke, Alicia. "Liquid crystals for light emitting diodes." Thesis, University of Hull, 2009. http://hydra.hull.ac.uk/resources/hull:2429.

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In this work a series of new semiconducting liquid crystals (LCs), which are applicable for organic light emitting diodes (OLEDs), were investigated. Semiempirical calculations were carried out on monomers and anti-cofacial dimers built from our molecules, representing molecules in solution and thin film respectively. Compared to the monomer a doubling of the oscillator strength in the dimer was found for longitudinal offsets larger than 20 A. Smaller shifts showed a forbidden absorption transition from ground to the lowest excited state. Assuming that the absorption transition is equivalent t

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41

Farrow, T. "Quantum dot single-photon emitting diodes." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.598951.

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Significant advances have been made in the past five years in realizing photon sources based on various kinds of emitters in the 500-1000 nm spectral region. However, reliable sources emitting at wavelengths compatible with standard telecommunication optical fibre are still lacking. Self-assembled quantum dots offer a way to generate wavelength-tunable photons. They offer also relatively high radiative efficiencies, short spontaneous emission lifetimes (~1 ns) and, importantly, can easily be incorporated into compact semiconductor devices fabricated with established technologies. In this thesi

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42

Falcoz, Franck. "LASERS CR3+ : LISAF pompés par diodes." Phd thesis, Université Paris Sud - Paris XI, 1996. http://pastel.archives-ouvertes.fr/pastel-00714019.

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Ce mémoire concerne l'étude de systèmes laser utilisant le cristal de cr3+:lisaf comme milieu amplificateur. Ce dernier posséde une large bande d'émission entre 800 et 1000 nm, ainsi qu'une large bande d'absorption entre 600 et 700 nm. Depuis 1993, des diodes laser de puissance sont disponibles a ces longueurs d'onde (670 nm). Malgre leurs mauvaises qualites spatiales, il est possible, en choisissant correctement les systèmes optiques, de realiser un pompage efficace de ce cristal. Nous avons développé des oscillateurs cr3+:lisaf pompes par diodes et délivrant quelques centaines de mw en regim

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43

Zhu, Zixu James. "Graphene geometric diodes for optical rectennas." Thesis, University of Colorado at Boulder, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3635957.

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<p> Optical rectennas, which are micro-antennas to convert optical-frequency radiation to alternating current combined with ultrahigh-speed diodes to rectify the current, can in principle provide high conversion efficiency solar cells and sensitive detectors. Currently investigated optical rectennas using metal/insulator/metal (MIM) diodes are limited in their RC response time and poor impedance matching between diodes and antennas. A new rectifier, the geometric diode, can overcome these limitations. The thesis work has been to develop geometric diode rectennas, along with improving fabricati

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44

Visweswaran, Bhadri. "Encapsulation of organic light emitting diodes." Thesis, Princeton University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3665325.

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<p> Organic Light Emitting Diodes (OLEDs) are extremely attractive candidates for flexible display and lighting panels due to their high contrast ratio, light weight and flexible nature. However, the materials in an OLED get oxidized by extremely small quantities of atmospheric moisture and oxygen. To obtain a flexible OLED device, a flexible thin-film barrier encapsulation with low permeability for water is necessary. </p><p> Water permeates through a thin-film barrier by 4 modes: microcracks, contaminant particles, along interfaces, and through the bulk of the material. We have developed

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45

Pellegrini, Sara. "InGaAs/InP single-photon avalanche diodes." Thesis, Heriot-Watt University, 2005. http://hdl.handle.net/10399/49.

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46

Wilkinson, Paul Bryan. "Quantum chaos in resonant tunnelling diodes." Thesis, University of Nottingham, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363557.

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47

Weaver, Michael Stuart. "Electroluminescence from organic light emitting diodes." Thesis, University of Sheffield, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265610.

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48

Nowell, Mark Charles. "Push-pull directly modulated laser diodes." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339501.

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49

Tai, Feng-I. "Photochromic molecules in polymer switch diodes." Thesis, Linköpings universitet, Institutionen för teknik och naturvetenskap, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-6810.

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Photochromism has been investigated extensively during recent years. The large interest for information storage in memory applications is associated with the bi-stable character of the photochromism phenomena. In molecular photochromics, two isomers with different absorption spectrum can be obtained according to the specific wavelength of the light exposure. This reversible transformation process can be considered as optical writing/erasing step of a memory. Here we first report the absorption spectra of solid-state films based on the blends consisting of PC molecules, the spirooxazine 1,3-dih

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Gray, Dodd (Dodd J. ). "Thermal pumping of light-emitting diodes." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/76963.

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Abstract:

Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 129-135).<br>The work presented here is a study of thermally enhanced injection in light-emitting diodes (LEDs). This effect, which we refer to as "thermal pumping", results from Peltier energy exchange from the lattice to charge carriers when current is injected into an LED. For an applied voltage V such that qV < (hw), where q is the electron charge and (hw) is the average emitted photon energy

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