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Dissertations / Theses on the topic 'Cadmium telluride solar cell'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Awan, G. R. "Cadmium telluride for solar cells." Thesis, Durham University, 1987. http://etheses.dur.ac.uk/6852/.

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Cadmium telluride is an attractive material for solar cell applications because of its near optimum bandgap and high absorption coefficient. This thesis presents the results of a study into the use of CdTe for solar cells. Three types of cell have been investigated, namely; CdS/CdTe devices fabricated by the vacuum evaporation of CdS onto either: (a) single crystal p-CdTe substrates or (b) p-CdTe thin films, and (c) p-Cu(_2)Te/n-CdTe devices made by a chemiplating process onto single crystal n-CdTe. The effects of substrate polishing and preparation on the performance of CdS/CdTe bulk crystal

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2

Wu, Xiawa. "Properties of thin film cadmium sulfide used in cadmium telluride/cadmium sulfide solar cell." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 79 p, 2009. http://proquest.umi.com/pqdweb?did=1654493821&sid=1&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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3

Sivaraman, Gowri. "Characterization Of Cadmium Zinc Telluride Solar Cells." [Tampa, Fla.] : University of South Florida, 2003. http://purl.fcla.edu/fcla/etd/SFE0000219.

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4

Ramalingam, Madhan Raj. "Cadmium zinc telluride solar cells by close spaced sublimation." [Tampa, Fla.] : University of South Florida, 2004. http://purl.fcla.edu/fcla/etd/SFE0000408.

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5

Subramanian, Senthilnathan. "Characterization of cadmium zinc telluride solar cells by RF sputtering." [Tampa, Fla.] : University of South Florida, 2004. http://purl.fcla.edu/fcla/etd/SFE0000429.

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6

Chou, Hengchang. "Efficiency limiting defects and mechanisms in CdTe/CdS heterojunction solar cells." Diss., Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/14897.

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7

Romo, Luis C. "Zinc telluride deposition using close space sublimation to create back contacts for cadmium telluride solar cells." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2008. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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8

McGregor, Stephen Mark. "Solar cells based on electrodeposited Cds and CdTe films." Thesis, Sheffield Hallam University, 1999. http://shura.shu.ac.uk/20043/.

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The aim of this study was to understand the properties of glass/TCO/CdS/CdTe/metal solar cells, the CdS and CdTe being grown by aqueous electrodeposition. Deposited films and completed cells were characterised using electrical, structural and optical techniques. This report describes the production of well-formed polycrystalline CdS and CdTe with well defined XRD peaks and band gap. Experiments were performed to investigate the pre-conditioning of the CdTe bath on the overall cell performance. Pre-conditioning the CdTe deposition bath was found to improve the Voc value of the completed devices

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9

Vakkalanka, Sridevi A. "Development of window layer for high efficiency high bandgap cadmium selenide solar cell for 4-terminal tandem solar cell applications." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001761.

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10

Gianfrancesco, Anthony Giacomo. "Multi-wavelength characterization of cadmium telluride solar cell: Development of Q-EBIC and NSOM measurement techniques." Digital WPI, 2013. https://digitalcommons.wpi.edu/etd-theses/213.

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Thin-film inorganic solar cells, such as CdTe, have demonstrated the most promise to date for a viable low-cost renewable energy resource. Their current performance, however, is far from the theoretical limit suffering from significant charge recombination losses due to grain boundaries and point defects. It is likely that the microscopic compositions of grain bulk and grain boundaries are significantly different and not optimal for the overall device performance. Good understanding of charge transport along and across the grain boundaries and other microscopic interfaces is lacking, preventin

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11

Pressman, A. "Electrical properties of cadmium telluride thin film solar cells activated with magnesium chloride." Thesis, University of Liverpool, 2017. http://livrepository.liverpool.ac.uk/3017359/.

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12

Gutta, Venkatesh. "INVESTIGATIONS OF CuInTe2 / CdS & CdTe / CdS HETEROJUNCTION SOLAR CELLS." UKnowledge, 2011. http://uknowledge.uky.edu/gradschool_theses/654.

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Thin film solar cells of Copper Indium Telluride and Cadmium Sulfide junctions were fabricated on plain ITO glass slides and also on those coated with intrinsic Tin Oxide. CdS was deposited through chemical bath deposition and CIT by electrodeposition. Both compounds were subjected to annealing at temperatures between 350°C and 500°C which produced more uniform film thicknesses and larger grain sizes. The CIT/ CdS junction was characterized after performing XRD and spectral absorption of individual compounds. Studies were also made on CdS / CdTe solar cells with respect to effect of annealing

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13

Alamri, Saleh Naeeman O. "Preparation and characterisation of thin film CdS/CdTe solar cells produced by close space sublimation." Thesis, Durham University, 1999. http://etheses.dur.ac.uk/1139/.

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14

Sriramagiri, Gowri Manasa. "Solar Electrolyzer Coupling via Load-Matching and Doping in Cadmium Telluride Solar Cells to Overcome Voltage Limitations." Thesis, University of Delaware, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=13428221.

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<p> This dissertation comprises two distinct topics concerning photovoltaics: studying solar electrolyzer performance with a practical consideration of their design and operation, and extrinsic p-type doping in thin-film CdTe solar cells using Sb for improved voltage output. </p><p> Solar fuel generation via water and CO<sub>2</sub> reduction using photovoltaics has witnessed considerable growth since the identification of photocatalysis four decades ago. Numerous photovoltaic-driven electrochemical cells (PV-ECs) and photoelectrochemical cells (PECs) with efficiencies reaching 30% for H<sub

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15

Yousaf, Mushtaq. "Electrical contacts to MBE grown CdTe layers and devices." Thesis, University of Hull, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363203.

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16

Warren, Charles. "The Effect of Copper on the Defect Structure of Cadmium Telluride Thin-Film Solar Cells." Thesis, University of Oregon, 2016. http://hdl.handle.net/1794/19709.

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Transient photocapacitance (TPC) and transient photocurrent (TPI) spectroscopy have been used to examine the defect structure in the upper-half of the bandgap of CdTe solar cells, with an emphasis on understanding the effect of copper. TPC spectra reveal two defects in the CdTe devices at optical energies of 1.2eV and 0.9eV with respect to the valence band. The origin of the 1.2eV defect could not be associated with a particular element, although copper and zinc were ruled out as sources. TPI spectra were used to observe that the density of the 1.2eV defect was dramatically reduced by thermall

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17

Gaduputi, Jagadish. "Characterization of cadmium zinc telluride films and solar cells on glass and flexible substrates by rf sputtering." [Tampa, Fla.] : University of South Florida, 2004. http://purl.fcla.edu/fcla/etd/SFE0000341.

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18

Watthage, Suneth C. "Solution-Processed Fabrication of Hybrid Organic-Inorganic Perovskites & Back Interface Engineering of Cadmium Telluride Solar Cells." University of Toledo / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1512390043951256.

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19

Kumar, Vishwanath. "Characterization Of Large Area Cadmium Telluride Films And Solar Cells Deposited On Moving Substrates By Close Spaced Sublimation." [Tampa, Fla.] : University of South Florida, 2003. http://purl.fcla.edu/fcla/etd/SFE0000218.

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20

Mohammadi, Farid. "A Meta-Analysis on Solar Cell Technologies." Thesis, Mittuniversitetet, Avdelningen för elektronikkonstruktion, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-32584.

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The objective of this study is analysing the characteristics of five different solar cell technologies regarding their efficiency, fill factor, cost and environmental impacts and comparing their improvement records over years considering their efficiency. The five solar cell technologies of interest are amorphous silicon, monocrystalline silicon, polycrystalline silicon, cupper indium gallium selenide thin film and cadmium telluride thin film. The structure and manufacturing process of each of cell technologies were discussed. The study was conducted by the aid of available scientific reports

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21

Tessema, Misle Mesfin. "Shunt Passivation Process for CdTe Solar Cell - New Post Deposition Technique." University of Toledo / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1252430254.

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22

Cimaroli, Alexander J. "Development of Deposition and Characterization Systems for Thin Film Solar Cells." University of Toledo / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1481295690696407.

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23

Vasko, Anthony C. "Issues in the Development of All-Sputtered ZnO/CdS/CdTe Flexible Solar Cells." University of Toledo / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1249826879.

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24

Ganvir, Rasika. "MODELLING OF THE NANOWIRE CdS-CdTe DEVICE DESIGN FOR ENHANCED QUANTUM EFFICIENCY IN WINDOW-ABSORBER TYPE SOLAR CELLS." UKnowledge, 2016. http://uknowledge.uky.edu/ece_etds/83.

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Numerical simulations of current-voltage characteristics of nanowire CdS/CdTe solar cells are performed as a function of temperature using SCAPS-1D. This research compares the experimental current-voltage (I-V) characteristics with the numerical (I-V) simulations obtained from SCAPS-1D at various temperatures. Various device parameters were studied which can affect the efficiency of the nanowire-CdS/CdTe solar cell. It was observed that the present simulated model explains the important effects of these solar cell devices, such as the crossover and the rollover effect. It was shown that the re

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25

Rangaswamy, Ashok. "Effect of CdCl₂ Treatment on CdTe and CdS Solar Cell Characteristics after Exposure to Light for 1000 Hours." [Tampa, Fla.] : University of South Florida, 2003. http://purl.fcla.edu/fcla/etd/SFE0000064.

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26

Ka, Oumar. "Composes 2-6 serigraphies : preparation et caracterisation de cds et cdte." Paris 6, 1988. http://www.theses.fr/1988PA066319.

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Etude des proprietes fondamentales (structures cristallographiques, proprietes transport, luminescence, etc. ) des couches cdte et cds deposees par serigraphie (depot de la pate contenant le semiconducteur desire, sechage puis frittage haute temperature). Application a la fabrication de photopiles solaires en raison de son faible cout

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27

Schumm, Benjamin. "Herstellung und Charakterisierung periodisch strukturierter Dünnschichten für den Einsatz in optoelektronischen Bauteilen." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-119851.

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Transparente Elektroden finden breite Verwendung in unterschiedlichen kommerziellen Produkten. Dünnschichtsolarzellen basieren ebenso auf diesen Funktionsschichten wie Displays oder organische Leuchtdioden. Im Falle von Dünnschichtsolarzellen kann durch gezielte Einstellung der Oberflächentextur der transparenten Elektrode ein entscheidender Einfluss auf die erreichbare Effizienz genommen werden. Dabei wird eine Verlängerung der Weglänge des Lichtes im Absorbermaterial durch Mehrfachreflexionen angestrebt. Häufig werden dafür Schichten transparenter leitfähiger Oxide (TCO) gezielt texturiert.

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28

Desai, Darshini. "Electrical characterization of thin film CdTe solar cells." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 320 p, 2007. http://proquest.umi.com/pqdweb?did=1257806491&sid=6&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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29

Cousins, Michael Andrew. "Microstructure of absorber layers in CdTe/Cds solar cells." Thesis, Durham University, 2001. http://etheses.dur.ac.uk/4266/.

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This work concerns the microstructure of CSS-grown CdTe layers used for CdTe/CdS solar cells. Particular attention is given to how the development of microstructure on annealing with CdCl(_2) may correlate with increases in efficiency. By annealing pressed pellets of bulk CdTe powder, it is shown that microstructural change does occur on heating the material, enhanced by the inclusion of CdCl(_2) flux. However, the temperature required to cause significant effects is demonstrated to be higher than that at which heavy oxidation takes place. The dynamics of this oxidation are also examined. To i

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30

Abbas, Ali. "The microstructure of thin film cadmium telluride photovoltaic materials." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/16389.

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In this work cadmium telluride thin film photovoltaic devices have successfully been produced using a novel closed-field magnetron sputtering technique. This technique offers the possibility of producing cells in an all-in-one vacuum process with the potential to provide a new lower cost production route. The sputtered cadmium telluride layers were characterised in detail using a range of advanced microscopy based techniques both in the as deposited and after the cadmium chloride treated state, a treatment that is necessary to produce a working cell. In the as deposited condition the cadmium t

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31

Melo, Tede Fernandes. "Obtaining an photovoltaic solar cell based in CdS and TiO2 photosensitized with dye in glass substrate with conductive layer." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=12131.

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CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior<br>This research describes the process of obtaining a photovoltaic cell, since getting electrical conductor glasses used for the flow of electrons coming from the photovoltaic effect until the deposition of thin films of semiconductor titanium dioxide (TiO2) and cadmium sulfide (CdS) at each of these glasses. The use of natural or synthetic dyes deposited on titanium dioxide layer has the objective to increase the absorption spectrum of the TiO2, since sunlight emits most of its energy in the frequency range of visible light. After joi

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32

Baran, Andre. "Chemical bath deposited zinc cadmium sulfide and sputter deposted [sic] zinc oxide for thin film solar cell device fabrication." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0022644.

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33

Lambert, Darcy Erin. "Nanostructured Extremely Thin Absorber (ETA) Hybrid Solar Cell Fabrication, Optimization, and Characterization." PDXScholar, 2011. https://pdxscholar.library.pdx.edu/open_access_etds/637.

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Traditional sources of electrical energy are finite and can produce significant pollution. Solar cells produce clean energy from incident sunlight, and will be an important part of our energy future. A new nanostructured extremely thin absorber solar cell with 0.98% power conversion efficiency and maximum external quantum efficiency of 61% at 650 nm has been fabricated and characterized. This solar cell is composed of a fluorine-doped tin oxide base layer, n-type aluminum doped zinc oxide nanowires, a cadmium selenide absorber layer, poly(3-hexylthiophene) as a p-type layer, and thermally evap

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34

Marda, Sandeep Kumar. "PHOTOVOLTAIC CELLS BASED ON COPPER PHTHALOCYANINE AND CADMIUM SULFIDE HETEROJUNCTION." UKnowledge, 2008. http://uknowledge.uky.edu/gradschool_theses/557.

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This work focuses on the solar cell based on the heterostructure formed between Copper Phthalocyanine (CuPc) and Cadmium Sulfide (CdS). Two different fabrication techniques were used for depositing the organic and inorganic layers of CuPc and CdS layers respectively. CuPc was deposited by electrodeposition while CdS was deposited by chemical bath deposition. Hybrid CdS/CuPc thin films were obtained from CdS films grown on Glass/ITO by chemical bath deposition followed by electrodeposition of CuPc onto these films and annealing at 250˚C after the deposition of each layer. The maximum open circu

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35

Hsu, Chih-An. "Absorber and Window Study – CdSexTe1-x/CdTe Thin Film Solar Cells." Scholar Commons, 2019. https://scholarcommons.usf.edu/etd/7813.

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CdTe an II-VI semiconductor has been a leading thin film photovoltaic material due to its near ideal bandgap and high absorption coefficient [1]. The typical thin film CdTe solar cells have been of the superstrate configuration with CdS (Eg-2.42eV) as the n-type heterojunction partner. Due to the relatively narrow bandgap of CdS, a wider bandgap n-type window layer has recently emerged as a promising substitute: alloys of MgyZn1-yO have been successfully used as the emitter or window layer. The benefits in the usage of MgyZn1-yO (MZO) are its tunable bandgap and wide optical spectrum on opt

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36

Gutmann, Sebastian. "Electronic Structure Characterization of Nanocrystalline Surfaces and Interfaces with Photoemission Spectroscopy." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3137.

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In this study, photoemission spectroscopy (PES) was used to investigate the electronic properties of nanocrystalline titanium dioxide (TiO2), zinc oxide (ZnO), and cadmium selenide (CdSe). Electrospray deposition technique enabled the preparation of thin films in vacuum from a dispersion prepared outside the vacuum chamber. This method also allowed the step-wise formation of interfaces and the monitoring of the evolution of the electronic structure with intermittent PES characterization. The work function of nanocrystalline TiO2 and ZnO was measured with ultraviolet photoemission spectroscopy

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37

"Amorphous Silicon Contacts for Silicon and Cadmium Telluride Solar Cells." Doctoral diss., 2018. http://hdl.handle.net/2286/R.I.50450.

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abstract: Achieving high efficiency in solar cells requires optimal photovoltaics materials for light absorption and as with any electrical device—high-quality contacts. Essentially, the contacts separate the charge carriers—holes at one terminal and electrons at the other—extracting them to an external circuit. For this purpose, the development of passivating and carrier-selective contacts that enable low interface defect density and efficient carrier transport is critical for making high-efficiency solar cells. The recent record-efficiency n-type silicon cells with hydrogenated amorphous sil

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38

Tsao, Rick, and 曹天磊. "Fabrication and Characterization of Cadmium Telluride Layers by Chemical Bath Deposition for Thin Film Solar Cell Applications." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/61704960270963871194.

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碩士<br>逢甲大學<br>材料科學與工程學系<br>103<br>This study is aimed at using low temperature chemical solution synthesis route, namely chemical bath deposition (CBD), to fabricate of cadmium telluride (CdTe) and cadmium sulfide telluride (CdS1-xTex) thin films as absorption layers for fabrication of thin film solar cells. There are several chemical synthesis parameters involved in the CBD process, which are consisted of synthesis temperature (95oC), deposition time (1~2 hr), types of chemical precursors and complexing agents, the concentration of stabilizing agent, pH value, and annealing temperature (250~5

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39

Sakib, Khalid Nazmus. "Cadmium Telluride Solar Cell: From Device Modeling to Battery Charging Application through Maximum Power Point Tracking and Charging Circuitry." Thesis, 2013. http://spectrum.library.concordia.ca/977430/4/Sakib_MASc_F2013.pdf.

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Battery charging for industrial and vehicular application by second generation thin film solar cells like CdTe can have a promising future for their cheaper production and better efficiency. Though the production of solar cells is still based mainly on silicon (Si), the market share of thin film solar has been increasing over the last few years. The mathematical modeling of the voltage dependent current-voltage (I-V) characteristics of Cadmium Telluride (CdS/CdTe) Solar cell and utilizing the model as an electrical source to charge a Li-ion battery and to charge it a battery charging algorithm

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40

Chen, Jing Hon, and 陳建宏. "Electrodeposition of Cadmium Telluride used for Thin Film Solar Cell: a Study of Mechanism of CdTe Electrodeposition and the Dependence of Composition of CdTe on Deposition Conditions." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/82943996004348585010.

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41

Hong, Song-Fu, and 洪崧富. "The Study on Cadmium Sulfide Buffer Layer Prepared by Chemical Bath Deposition on CIGS Solar Cell Application." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/65396715219531562642.

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