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Dissertations / Theses on the topic 'Single and Multi-junction Solar Cells'

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Published: 7 September 2023

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1

Shim, Jae Won. "Study of charge-collecting interlayers for single-junction and tandem organic solar cells." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51820.

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A hole-collecting interlayer layer for organic solar cells, NiO, processed by atomic layer deposition (ALD) was studied. ALD-NiO film offered a novel alternative to efficient hole-collecting interlayers in conventional single-junction organic solar cells. Next, surface modifications with aliphatic amine group containing polymers for use as electron-collecting interlayers were studied. Physisorption of the polymers was found to lead to large reduction of the work function of conducting materials. This approach provides an efficient way to provide air-stable low-work function electrodes for orga
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2

Lynch, Marianne Catherine. "Modelling and optimisation of single junction strain balanced quantum well solar cells." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/8479.

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In an attempt to find the optimum number of wells for maximum conversion efficiency a pair of otherwise identical strain balanced samples, one containing 50 wells and the other 65 wells have been characterised. The 65 well sample is found to possess a lower predicted efficiency than the 50 well sample, suggesting that the optimum well number lies between these values. Devices grown using tertiary butyl arsine (TBAs) are found to possess comparable conversion efficiencies to the control cells grown using arsine and slightly superior dark IV characteristics, indicating that TBAs may be substitut
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3

Mahajumi, Abu Syed. "Type-II gallium antimonide quantum dots in gallium arsenide single junction solar cells." Thesis, Lancaster University, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.658211.

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The novel idea of GaSb quantum dots (QDs)1 quantum rings (QRs) stacked layers single junction solar cells have been investigated for the examination and enhancement of the infrared photo response. Initially the investigation used photoluminescence to probe the optical properties of a type-II material interface between GaSb/GaAs using optimum growth temperature for QDs/QRs with two different growth modes (Stranski-Krastanow (SK) and exchange growth); and two different GaSb deposition thickness (1.5ML and 2.IML). The photoluminescence spectra of the stacked epilayers confirmed that the dominant
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4

Zhang, Haoquan S. M. Massachusetts Institute of Technology. "An integrated multi-input single-output buck converter for laterally-arrayed multi-bandgap solar cells." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/121745.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2019<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 151-156).<br>Concentrated Photovoltaic (CPV) systems provides a potentially low-cost and high-efficiency alternative to conventional mono-crystalline Si panel PV systems, and a new CPV system with Laterally-Arrayed Multi-Bandgap (LAMB) cells is introduced. In this thesis, an IC-based Multi-Input Single-Output (MISO) power converter, which serves as the small-footprint and self-powered power ma
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5

Fifer, Tommy L. "Radiation effects on multi-junction solar cells." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2001. http://handle.dtic.mil/100.2/ADA401081.

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Thesis (M.S. in Electrical Engineering) Naval Postgraduate School, Dec. 2001.<br>Thesis advisor(s): Michael, Sherif . "December 2001." Includes bibliographical references (p. 65-67). Also available online.
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6

Mantilla, Pérez Paola. "Multi-junction thin film solar cells for an optimal light harvesting." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/406044.

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Thin film photovoltaics encompass a group of technologies able to harvest light within a few microns thickness. The reduced thickness allows a low cost of manufacture while making the films flexible and adaptable to different surfaces. This, combined with their low weight, positioned thin film solar cells as ideal candidates for building integrated photovoltaics. For the latter, organic solar cells (OSC) can provide a high quality semi-transparency that closely mimics the aesthetics of standard windows. Indeed, some unique features of organic solar cells make them the optimal solution for app
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7

Kolhatkar, Gitanjali. "Characterisation of high-efficiency multi-junction solar cells and tunnel junctions." Thesis, University of Ottawa (Canada), 2011. http://hdl.handle.net/10393/28939.

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Tunnel junctions for use in solar cells and monolithic multi junction solar cells are studied experimentally. The current density-voltage characteristic of an AlGaAs/AlGaAs tunnel junction having a mesa resistance of 0.11 mO&middot;cm2 is determined using time-averaged measurements. A tunneling peak higher than the operating point of a solar cell is recorded by this method, with a value of &sim;950 A/cm2. Due to the unstable nature of the negative differential resistance region of the current density-voltage curve, measurements of the tunneling peak and valley current densities are obscured. A
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8

Walker, Alexandre W. "Bandgap Engineering of Multi-Junction Solar Cells for Enhanced Performance Under Concentration." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/26240.

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This doctorate thesis focuses on investigating the parameter space involved in numerically modeling the bandgap engineering of a GaInP/InGaAs/Ge lattice matched multi-junction solar cell (MJSC) using InAs/InGaAs quantum dots (QDs) in the middle sub-cell. The simulation environment – TCAD Sentaurus – solves the semiconductor equations using finite element and finite difference methods throughout well-defined meshes in the device to simulate the optoelectronic behavior first for single junction solar cells and subsequently for MJSCs with and without quantum dots under concentrated illumination o
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9

Judkins, Zachara Steele. "A market analysis for high efficiency multi-junction solar cells grown on SiGe." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/42143.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2007.<br>Includes bibliographical references (leaves 50-53).<br>Applications, markets and a cost model are presented for III-V multi-junction solar cells built on compositionally graded SiGe buffer layers currently being developed by professors Steven Ringell of Ohio State University and Eugene Fitzgerald of MIT. Potential markets are similar to those currently occupied by high efficiency multi-junction space solar cells grown on a Germanium substrate. Initial cost analysis shows that at produc
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10

Korostyshevsky, Aaron. "Characterization of Radiation Damage in Multi-Junction Solar Cells Using Light-Biased Current Measurements." Connect to full text in OhioLINK ETD Center, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=toledo1224614484.

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Thesis (M.S.)--University of Toledo, 2008.<br>Typescript. "Submitted as partial fulfillments of the requirements for the Master of Science Degree in Physics." "A thesis entitled"--at head of title. Bibliography: leaves 41-42.
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11

Lee, Kan-Hua. "Photon coupling effects and advanced characterisations of multiple-quantum-well multi-junction solar cells." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/24747.

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Achieving optimal band-gap combinations of multi-junction solar cells at production level is the most difficult challenge in concentrator photovoltaics. To improve the state-of-the-art InGaP/InGaAs/Ge triple-junction cells, it requires that the band gaps of the top and middle junction to be lower or an additional 1 eV junction. This involves lattice-mismatch growth or introducing dilute nitrides materials, which makes it difficult to scale up to production at low cost. Strain-balanced multiple quantum wells (MQWs) in the middle junction has been very well-studied as a means to adjust the absor
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12

Tournet, Julie. "III-Sb-based solar cells and their integration on Si." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTS003/document.

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Les matériaux III-Sb ont prouvé leur potentiel pour la réalisation de composants opto-électroniques dans des domaines aussi variés que les télécommunications ou l'environnement. Cependant, ils restent une filière quasi-inexplorée pour les systèmes photovoltaïques classiques. Dans ce projet de recherche, nous voulons démontrer que les composants à base d'antimoniures sont des candidats prometteurs pour des cellules solaires à haute efficacité et bas coût. Leurs avantages sont multiples : non seulement offrent-ils un large panel d'alliages accordés en maille et des jonctions tunnel à basse résis
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13

Fernández, Jara [Verfasser]. "Development of Crystalline Germanium for Thermophotovoltaics and High-Efficiency Multi-Junction Solar Cells / Jara Fernández." Konstanz : Bibliothek der Universität Konstanz, 2010. http://d-nb.info/1026012740/34.

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14

Wilkins, Matthew M. "Design of Multi-junction Solar Cells on Silicon Substrates Using a Porous Silicon Compliant Membrane." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/24096.

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A novel approach to the design of multi-junction solar cells on silicon substrates for 1-sun applications is described. Models for device simulation including porous silicon layers are presented. A silicon bottom subcell is formed by diffusion of dopants into a silicon wafer. The top of the wafer is porosified to create a compliant layer, and a III-V buffer layer is then grown epitaxially, followed by middle and top subcells. Due to the resistivity of the porous material, these designs are best suited to high efficiency 1-sun applications. Numerical simulations of a multi-junction solar cell i
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15

Wilkins, Matthew. "Multi-Junction Solar Cells and Photovoltaic Power Converters: High-Efficiency Designs and Effects of Luminescent Coupling." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/36181.

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Multi-junction photovoltaic devices based on III-V semiconductors have applications in space power systems and terrestrial concentrating photovoltaics, as well as in power-over-fibre and optical power conversion systems. These devices have between two and twenty junctions arranged in tandem, connected in series with optically transparent tunnel diodes. In some cases, they may include as many as eight different materials, including ternary and quaternary alloys, and >100 epitaxial layers in total. A general method for simulating performance of these devices using drift-diffusion based device s
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16

Yandt, Mark. "Characterization Techniques and Optimization Principles for Multi-Junction Solar Cells and Maximum Long Term Performance of CPV Systems." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/35870.

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Two related bodies of work are presented, both of which aim to further the rapid development of next generation concentrating photovoltaic systems using high efficiency multi junction solar cells. They are complementary since the characterization of commercial devices and the systematic application of design principles for future designs must progress in parallel in order to accelerate iterative improvements. First addressed, is the field characterization of state of the art concentrating photovoltaic systems. Performance modeling and root cause analysis of deviations from the modeling resul
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17

VanDyke, Jamie E. "Modeling laser effects on multi-junction solar cells using Silvaco ATLAS software for spacecraft power beaming applications." Thesis, Monterey, California : Naval Postgraduate School, 2010. http://edocs.nps.edu/npspubs/scholarly/theses/2010/Jun/10Jun%5FVanDyke.pdf.

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Thesis (M.S. in Space Systems Operations)--Naval Postgraduate School, June 2010.<br>Thesis Advisor(s): Michael, Sherif ; Second Reader: Scott, Alan. "June 2010." Description based on title screen as viewed on July 14, 2010. Author(s) subject terms: Solar Cell, Photovoltaic, Directed Energy, Power Beaming, Wireless Power Transfer, Multi-junction, Laser, Silvaco, Modeling, Simulation. Includes bibliographical references (p. 115-117). Also available in print.
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18

Browne, Benjamin. "An experimental and theoretical study of multi-junction and deep-well GaAsP/InGaAs quantum well solar cells." Thesis, Imperial College London, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.530465.

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19

Chow, Simon Ka Ming. "Integration of High Efficiency Solar Cells on Carriers for Concentrating System Applications." Thèse, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/19932.

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High efficiency multi-junction (MJ) solar cells were packaged onto receiver systems. The efficiency change of concentrator cells under continuous high intensity illumination was done. Also, assessment of the receiver design on the overall performance of a Fresnel-type concentration system was investigated. We present on receiver designs including simulation results of their three-dimensional thermal operation and experimental results of tested packaged receivers to understand their efficiency in real world operation. Thermal measurements from solar simulators were obtained and used to calib
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20

Jadhav, Priyadarshani. "Singlet exciton fission, a multi-exciton generation process, in organic semiconductor solar cells." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/75635.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 107-115).<br>Organic semiconductor photovoltaics hold the promise of cheap production and low manufacturing setup costs. The highest efficiency seen in research labs, ~10% today, is still too low for production. In this work we explore implementations of a multiple exciton generation process, singlet exciton fission, to work around the Shockley-Queisser limit, according to which, all single juncti
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21

Andre, Carrie L. "III-V semiconductors on SiGe substrates for multi-junction photovoltaics." The Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=osu1100290985.

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22

Guo, Fei [Verfasser], and Christoph [Akademischer Betreuer] Brabec. "Material and Process Engineering of Printed Semitransparent Organic Solar Cells and Advanced Multi-junction Architectures / Fei Guo. Gutachter: Christoph Brabec." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2015. http://d-nb.info/107736296X/34.

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23

Veinberg, vidal Elias. "Fabrication, caractérisation et simulation de cellules solaires multi-junction III-V sur silicium." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAT091/document.

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Des rendements record à plus de 26% ont récemment été démontrés avec des cellules solaires en Si, approchant la limite théorique de 30% pour une seule jonction. Les cellules solaires à multi-jonctions (MJSC) fabriquées à base de matériaux III-V peuvent dépasser cette limite: des rendements supérieurs à 45% ont été reportés pour une cellule à 5 jonctions sous un soleil et pour une cellule à 4 jonctions sous lumière concentrée. Cependant, pour des applications terrestres, le coût élevé de ces technologies impose l’utilisation d’une haute concentration, ce qui augmente la complexité du système.Un
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24

Dickerson, Jeramy Ray. "Heterostructure polarization charge engineering for improved and novel III-V semiconductor devices." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51793.

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Innovative electronic device concepts that use polarization charges to provide improved performance were validated. The strength of the electric fields created by polarization charges (PCs) was suggested to act as an additional design parameter in the creation of devices using III-nitride and other highly polar materials. Results indicated that polarization induced electric fields can replace conventional doping schemes to create the charge separation region of solar cells and would allow for a decoupling of device performance from doping requirements. Additionally, a model for calculating cur
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25

Liebhaber, Martin Lutz [Verfasser]. "Silicon heterojunction solar cells: From conventional concepts to a singlet fission multi-exciton generating hybrid approach / Martin Lutz Liebhaber." Berlin : Freie Universität Berlin, 2017. http://d-nb.info/1129174549/34.

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26

Chenche, Luz Elena Peñaranda. "Avaliação dos métodos de modelagem e parametrização de dispositivos fotovoltaicos mono e multi junção." Universidade Federal de Uberlândia, 2015. https://repositorio.ufu.br/handle/123456789/14984.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>This work deals with the analysis applied to the main methodologies found in literature for estimating the properties related to the physical phenomena in photovoltaic devices (parametrization), as well as the most important mathematical models used in the calculation of operating electrical characteristics of these devices (characterization). These devices are related to the mono and multi-junction technologies, when they are exposed to a condition where the temperature and solar radiation vary. Therefore, four parametrization met
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27

Louarn, Kévin. "Etude et réalisation de jonctions tunnel à base d'hétérostructures à semi-conducteurs III-V pour les cellules solaires multi-jonction à très haut rendement." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30002/document.

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L'architecture des cellules solaires multi-jonction permet d'obtenir des records de rendement de conversion photovoltaïque, pouvant aller jusqu'à 46%. Leurs sous-cellules sont chacune conçues pour absorber une partie bien définie et complémentaire du spectre solaire, et sont connectées en série par des jonctions tunnel. La fabrication de cellules solaires tandem InGaP/GaAs d'énergies de bande interdite (" band gap ") 1,87 eV/1,42 eV accordées en maille sur substrat GaAs est bien maîtrisée, et de très hauts rendements peuvent être obtenus en ajoutant une ou deux sous-cellules de plus petit " ga
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Vauthelin, Alexandre. "Fabrication et caractéristiques de cellules photovoltaïques multi-jonctions à base de matériaux antimoniures (III-Sb) pour applications sous fortes concentrations solaires." Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTS073/document.

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Le développement des systèmes de conversion photovoltaïques ces trente dernières années a permis des améliorations considérables en terme de coût et de performances. A ce jour, les meilleurs rendements de conversion photovoltaïques sont obtenus avec des systèmes à oncentration solaire utilisant des cellules multi-jonctions (MJ) à base de matériaux semi-conducteurs III-V. Dans ce domaine, le meilleur rendement atteint à ce jour est de 46,0 % sous une concentration de 508 soleils avec une cellule à 4 jonctions issu du partenariat Soitec/Fraunhofer ISE/CEA. Cette cellule MJ est composée d’une cel
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Besson, Pierre. "Compréhension des comportements électrique et optique des modules photovoltaïques à haute concentration, et développement d’outils de caractérisations adaptés." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI013/document.

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Le travail de thèse effectué a pour objectif d'amener vers une meilleure compréhension des comportements électrique et optique des modules CPV, dans des conditions environnantes variables. La première partie est consacrée à l’étude de la performance des modules en conditions réelles de fonctionnement. Quatre technologies de module, toutes équipées de cellules triple-jonctions, mais de concentrateurs optiques différents, ont été testées en extérieur sur des périodes de un mois à deux ans. Les résultats montrent que la sensibilité à la température de lentille, la température de cellule et au spe
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Dinca, Dragos. "Development of an Integrated High Energy Density Capture and Storage System for Ultrafast Supply/Extended Energy Consumption Applications." Cleveland State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=csu1495115874616384.

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Zeitouny, Joya. "Advanced strategies for ultra-high PV efficiency." Thesis, Perpignan, 2018. http://www.theses.fr/2018PERP0056.

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La limite théorique de rendement des cellules photovoltaïques simple-jonction est de l’ordre de 33% d’après le modèle de Shockley-Queisser, ce qui reste éloigné de la limite de Carnot, prédisant une limite maximale de conversion énergie solaire → électricité de 93%. L’écart important entre ces deux limites découle des pertes intrinsèques, essentiellement liées à la conversion inefficace du spectre solaire et à la disparité entre les angles solides d’absorption et d’émission. Pour surmonter ces pertes et se rapprocher de la limite de Carnot, trois stratégies sont envisagées dans cette thèse : l
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Huang, Jiun-Sung, and 黃俊淞. "Numerical modeling of silicon-based single-junction and multi-junction solar cells." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/53030387453989508736.

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碩士<br>國立東華大學<br>光電工程學系<br>99<br>As the quality of life improves, the demand of energy sources of human beings also increases. However, due to the massive consumption of current energy sources on the earth, many different types of renewable energy sources have been developed. Among all the renewable projects in progress, solar energy is the most promising as a future energy technology, because it is the most abundant energy source. In this thesis, we have investigated single junction amorphous solar cells, single junction microcrystalline solar cells, and multi-junction solar cells by the c
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BAI, WEN-BIN, and 白文賓. "Performance enhancement of single-junction GaAs solar cells." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/8544hv.

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碩士<br>國立臺北科技大學<br>光電工程系<br>106<br>In this study, the conversion efficiency of single-junction GaAs solar cells using (a) double layer (ITO/SiO2) anti-reflection and (b) metal/oxide/semiconductor (MOS) structure deposited by thermally RF-sputter were proposed and demonstrated. Optical reflectance, external quantum efficiency, dark current-voltage, and photovoltaic current-voltage of are measured and compared. Type-(a): The optical reflectance of double layer anti-reflection was simulated using TFCalcTM optical thin film software to show a low reflective spectrum at the GaAs solar cells. T
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Wang, Jia-Jiun, and 王家濬. "Manufacturing and Analysis of Hetero-Junction Solar Cells and Single-Crystalline Solar Cells." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/71620896146909935590.

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碩士<br>華梵大學<br>機電工程學系博碩專班<br>96<br>Solar cells have the potential to be an important contributor to the global energy demand by the 21-st-century.The dominant topics for solar cell covered in this dissertation are (1) variation in the emitter dopant’s concentration,(2)variation in the wafer dopant’s concentration, (3)variation in the contact resistance,(4)the bifacial light source effects solar cells, (5)design and analysis micro Fresnel lens thin film. This work established a baseline model for silicon based solar cells and from this model the device physics relating to dopant’s concentration,
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Chen, Da-Shin, and 陳達欣. "Optimization of Hydrogenated Amorphous Silicon Single-Junction Solar Cells." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/76430473136478895068.

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碩士<br>國立交通大學<br>顯示科技研究所<br>98<br>In this study, hydrogenated amorphous silicon (s-Si:H) solar cell was fabricated by plasma enhanced chemical vapor deposition (PECVD). First, we optimized condition of the deposited single layer for p-layer, i-layer and n-layer, respectively. In order to investigate film property, the optoelectronic and optical properties was measured by Fourier Transform Infrared Spectroscopy (FTIR), UV/VIS/NIR spectrometers. The property of hydrogenated amorphous silicon carbide (a-SiC:H) p-layer was measured and discussed. Comparing the photovoltaic performances of the as gr
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Shih, Zun-Hao, and 施圳豪. "The study of single and dual junction III-V solar cells." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/u43a33.

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碩士<br>中原大學<br>電子工程研究所<br>93<br>The object of this study is to fabricate a series interconnected GaAs and InGaP solar cells respectively and particularly focuses on optimizing the most important part of these solar cells, base layer. For semiconductor devices, the carrier concentration influences the electrical properties of the materials. Both the short-circuit current and open-circuit voltage of the solar cell decreases with increasing carrier concentration. In addition, the layer thickness is another essential issue of the output electrical characteristics of device. A thicker layer will abs
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Cheng, Po-Hsiang, and 鄭柏翔. "High Efficiency Single-Junction Hydrogenated Amorphous Silicon Thin-Film Solar Cells." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/05428604144234725853.

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碩士<br>國立交通大學<br>光電工程學系<br>99<br>In the thesis, device quality hydrogenated amorphous silicon thin film was deposited by plasma enhanced chemical vapor deposition (PECVD) with hydrogen diluted silane. This high quality intrinsic hydrogenated amorphous silicon film was served as the absorber layer in solar cells. When depositing the devices, the electrode spacing and thicknesses of p-type, intrinsic amorphous silicon carbide, intrinsic layer, and n-type amorphous silicon were optimized to be incorporated into the solar cells. Methods of bandgap profiling in the buffer layer between p-layer and i
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Yang, Chun-Chieh, and 楊竣傑. "Investigation of built-in electric field in single-junction solar cells." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/47399584457273780620.

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碩士<br>中原大學<br>物理研究所<br>99<br>This thesis studied the built-in electric field of InGaP solar cells by electroreflectance(ER) measurements. With the increased bias, a decrease of the built-in electric field was found. Using current-voltage characteristics and the built-in electric field as a function of bias, we can get the information about the interface recombination velocity and minority carrier mobility. With the increased illumination power of a laser, a trend of decreasing built-in electric field was found. We fitted built-in electric field as a function of the illumiaiton power by a formu
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Chen, Guan-Lin, and 陳冠霖. "Optoelectronic Properties of i-Layer Thickness Dependence Single Junction Solar Cells." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/30452104507069109923.

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碩士<br>中原大學<br>電子工程研究所<br>100<br>In this thesis, we reported the optoelectronic characteristics of p-i-n GaAs solar cells. We studied the optimum thickness of intrinsic layer for obtaining the highest conversion efficiency. The samples without were detected by current-voltage measurement under AM1.5G illumination that the sample with 1 nm intrinsic layer has the highest efficiency of 14.24％. Based on low temperature photoluminescence and time resolved photoluminescence measurement, localization depth in such intrinsic layer thickness was developed. The experimental result showed that both local
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Hung, Mu-Min, and 洪牧民. "Photovoltaic Characteristics of Single-Junction GaAs Solar Cells with Selective Filter Design." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/85914213125248536957.

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碩士<br>國立交通大學<br>光電工程研究所<br>103<br>In detailed balance model, the efficiency of single-junction solar cells can be potentially as high as 33.5% under AM 1.5G illumination. However the best state-of-the-art devices are still far lower than those figures, even the electronic quality is nearly perfect. Therefore the efficiency gap should stem from the light management inside solar cells. Recently, Alta device, Inc. has successfully fabricated a thin-film GaAs single junction solar cell with conversion efficiency of 28.8%, under 1 sun illumination, which aggregates the loss of backward emission int
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Lu, Wei-Yi, and 呂威毅. "Raman Scattering of i-Layer Thickness Dependence GaAs Single Junction Solar Cells." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/04836958785003244172.

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碩士<br>中原大學<br>電子工程研究所<br>100<br>In this thesis we studied the Raman scattering of p-i-n gallium arsenide (GaAs) solar cells with different thicknesses of intrinsic layer. In Raman scattering, used a spatial correlation (SC) model we can explained the correlation length (L) and asymmetry of the longitudinal-optic phonon Raman spectrum. We found the sample with 1 nm thickness of intrinsic layer had the highest correlation length and symmetry. And from current-voltage measurement under AM1.5G illumination that find the highest conversion efficiency (η) in the same sample. Different annealing time
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Chih-ShanWu and 吳智善. "The Study of Concentrating Single Junction GaAs Solar Cells With Distributed Bragg Reflector." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/40319308385614694738.

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Hung, Wei-Jie, and 洪偉傑. "Fabrication of Transparent Conductive Oxides for Single-Crystalline n-type Silicon Hetero-Junction Solar Cells." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/50732695248536570600.

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碩士<br>華梵大學<br>機電工程學系博碩專班<br>98<br>This paper is aimed to improve the efficiencies of silicon solar cell using semiconductor fabrication technologies. The research first adopts n-type (100) silicon wafers as substrates, and applies KOH etching in the photolithography process to form inverted pyramid structures. The density of the inverse pyramid structures is varied to investigate its impact factor on the reflectivity for the solar cells. In addition, the paper performs high-density plasma chemical vapor deposition to fabricate amorphous silicon thin films. Then, the author can study solar c
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Lin, Jian-Cheng, and 林建誠. "Conversion Efficiency Enhancement of Single-Junction GaAs Solar Cells Using ITO and Oxide/ITO Films." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/gzett7.

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碩士<br>國立臺北科技大學<br>光電工程系研究所<br>105<br>In this study, the conversion efficiency of two types single-junction GaAs solar cell using the antireflective layer of SiO2 , ITO, and SiO2/ITO deposited by thermally RF-sputter was demonstrated. The passivation, antireflection, and biasing effects to enhance the efficiency are characterized. The optical reflectance, external quantum efficiency (EQE), dark current-voltage (I-V), and photovoltaic current-voltage (J-V) are measured and compared. Type-I: Characterization of the single-junction GaAs solar cells with SiO2, ITO, and SiO2/ITO antireflective coati
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Lin, Yi-Ping, and 林怡萍. "Investigation of Various Methods for Enhancing the Performance of a-Si:H Single-Junction Thin-Film Solar Cells." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/44793587546675803586.

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碩士<br>國立交通大學<br>光電工程學系<br>100<br>In this study, hydrogenated amorphous silicon thin-film solar cell was prepared by plasma-enhanced chemical vapor deposition (PECVD) system at 27.12 MHz. In order to improve the cell performance, different materials and structures were prepared to enhance the light absorption in the absorber active layer. First, the lower- refractive-index hydrogenated amorphous silicon nitride (a-SiNx:H) was deposited between the glass substrate and the transparent conductive oxide (TCO) layer to serve as the antireflection (AR) coatings. The performance of the devices having
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Su, Yu-Ru, and 蘇郁儒. "Simulation and Analysis of InGaN p-n Single Junction and InGaN/Si p-n Double Junction Solar Cells with Indium Composition and Thickness Dependences." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/90922207226285283126.

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碩士<br>國立高雄大學<br>應用物理學系碩士班<br>99<br>InxGa1-xN alloys feature a bandgap ranging from 0.7eV to 3.4eV, covering almost the entire solar spectrum. To optimize the efficiency and the best parameters of solar cells, numerical simulations of InGaN single junction and InGaN/Si double junction solar cells are conducted. The simulation modelling is important and indispensable for designing and fabricating InGaN single junction and InGaN/Si tandem solar cells. We changed the In composition and the thickness of the n- and p-InGaN to determine the short circuit current density (Jsc), open circuit voltage (V
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Yu-ShuenChiu and 邱煜舜. "Study of Various Screen-Printed Pastes for Single- and Multi-crystalline Silicon Solar Cells Applications." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/jhzxfz.

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博士<br>國立成功大學<br>化學系<br>103<br>A typical silicon solar cell consists of a p-n junction formed on the surface, a front ohmic contact stripe and fingers, a back contact that covers the entire back surface, and an antireflection coating on the front surface. Screen-printed solar cells are the most widely used cells in the commercial production of silicon solar cells. The key advantage of screen printing is the relative simplicity of the process in spite of its high contact resistance and high shading loss. Commercial mono- and multi-crystalline silicon solar cells use screen-printed process for de
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McPheeters, Claiborne Ott. "The application of light trapping structures and of InGaAs/GaAs quantum wells and quantum dots to improving the performance of single-junction GaAs solar cells." Thesis, 2012. http://hdl.handle.net/2152/ETD-UT-2012-05-5040.

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High efficiency photovoltaic solar cells are expected to continue to be important for a variety of terrestrial and space power applications. Solar cells made of optically thick materials often cannot meet the cost, efficiency, or physical requirements for specialized applications and, increasingly, for traditional applications. This dissertation investigates improving the performance of single-junction GaAs solar cells by incorporating InGaAs/GaAs quantum wells and quantum dots to increase their spectral response bandwidth, and by incorporating structures that confine light in the devices to i
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Hsiao, Min-Wen, and 蕭閔文. "Improvement of Microcrystalline Silicon Single-Junction and Tandem Solar Cells by Optimizing N-Type Microcrystalline Silicon and Silicon Oxide as Doped and Back Reflecting Layers." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/krs8f5.

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Chen, Jiun-ting, and 陳俊廷. "Investigation of III-V Compounds Multi-Junction Solar Cells." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/18150150363448353023.

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碩士<br>國立成功大學<br>光電科學與工程研究所<br>95<br>The purpose of this research is to investigate the passivation mechanism of the window layer (AlInP) of III-V compounds multi-junction solar cells by using (NH4)2Sx solution treatment. The optical and electrical properties of the n-type AlInP layer with and without (NH4)2Sx treatment under different anti-reflection coating (ARC) materials would be analyzed. Besides, the conversion efficiency of the multi-junction solar cell, I-V characteristics (Isc,Voc), series and parallel resistances before and after the (NH4)2Sx treatment would be investigated. Furthermo
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