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Tesi sul tema "Silicon solar cells – Design and construction"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 5 febbraio 2022

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1

Shih, Jeanne-Louise. "Zinc oxide-silicon heterojunction solar cells by sputtering." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=112583.

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Heterojunctions of n-ZnO/p-Si solar cells were fabricated by RF sputtering ZnO:Al onto boron-doped (100) silicon (Si) substrates. Zinc Oxide (ZnO) films were also deposited onto soda lime glass for electrical measurements. Sheet resistance measurements were performed with a four-point-probe on the glass samples. Values for samples evacuated for 14 hours prior to deposition increased from 7.9 to 10.17 and 11.5 O/&squ; for 40 W, 120 and 160 W in RF power respectively. In contrast, those evacuated for 2 hours started with a higher value of 22.5 O/&squ;, and decreased down to 7.6 and 5.8 O/&squ;.

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2

Richards, Bryce Sydney Electrical Engineering &amp Telecommunications Faculty of Engineering UNSW. "Novel uses of titanium dioxide for silicon solar cells." Awarded by:University of New South Wales. School of Electrical Engineering and Telecommunications, 2002. http://handle.unsw.edu.au/1959.4/20476.

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Titanium dioxide (TiO2) thin films have a long history in silicon photovoltaics (PV) as antireflection (AR) coatings due to their excellent optical properties and low deposition cost. This work explores several novel areas where TiO2 thin films could be use to enhance silicon (Si) solar cell performance while reducing device fabrication costs. Amorphous, anatase and rutile TiO2 thin films are deposited using ultrasonic spraydeposition (USD) and chemical vapour deposition (CVD) systems, both designed and constructed by the author. Initial experiments confirmed that no degradation in the bulk mi

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3

Narasimha, Shreesh. "Understanding and application of screen-printed metallization, aluminum back surface fields, and dielectric surface passivation for high-efficiency silicon solar cells." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/16453.

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4

Fisher, Kate School of Photovoltaic &amp Renewable Energy Engineering UNSW. "The pitfalls of pit contacts: electroless metallization for c-Si solar cells." Awarded by:University of New South Wales. School of Photovoltaic and Renewable Energy Engineering, 2007. http://handle.unsw.edu.au/1959.4/29568.

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This thesis focuses on improving the adhesion of electroless metal layers plated to pit contacts in interdigitated, backside buried contact (IBBC) solar cells. In an electrolessly plated, pit contact IBBC cell, the contact grooves are replaced with lines of pits which are interconnected by the plated metal. It is shown, however, that electroless metal layers, plated by the standard IBBC plating sequence, are not adherent on pit contact IBBC solar cells. The cause of this adhesion problem is investigated by examining the adhesive properties of each of the metal layers in the electroless metalli

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5

Krygowski, Thomas Wendell. "A novel simultaneous diffusion technology for low-cost, high-efficiency silicon solar cells." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/22973.

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6

Weber, J??rgen Wolfgang Photovoltaic &amp Renewable Engergy Engineering UNSW. "Design, construction and testing of a high-vacuum anneal chamber for in-situ crystallisation of silicon thin-film solar cells." Awarded by:University of New South Wales. Photovoltaic and Renewable Engergy Engineering, 2006. http://handle.unsw.edu.au/1959.4/24847.

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Thin-film solar cells on glass substrates are likely to have a bright future due to the potentially low costs and the short energy payback times. Polycrystalline silicon (poly-Si, grain size &gt 1 pm) has the advantage of being non-toxic, abundant, and long-term stable. Glass as a substrate, however, limits the processing temperatures to ~600??C for longer process steps. Films with large grain size can be achieved by solid phase crystallisation (SPC), and especially by solid phase epitaxy (SPE) on seed layers, using amorphous silicon deposited at low temperatures as a precursor film. With SPC

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7

Sheng, Xing Ph D. Massachusetts Institute of Technology. "Thin-film silicon solar cells : photonic design, process and fundamentals." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/105936.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2012.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 153-159).<br>The photovoltaic technology has been attracting widespread attention because of its effective energy harvest by directly converting solar energy into electricity. Thin-film silicon solar cells are believed to be a promisin

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8

Jain, Nikhil. "Design of III-V Multijunction Solar Cells on Silicon Substrate." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/33048.

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With looming energy crisis across the globe, achieving high efficiency and low cost solar cells have long been the key objective for photovoltaic researchers. III-V compound semiconductor based multijunction solar cells have been the dominant choice for space power due to their superior performance compared to any other existing solar cell technologies. In spite of unmatched performance of III-V solar cells, Si cells have dominated the terrestrial market due to their lower cost. Most of the current III-V solar cells are grown on Ge or GaAs substrates, which are not only smaller in diameter, bu

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9

Sana, Peyman. "Design, fabrication and analysis of high efficiency multicrystalline silicon solar cells." Diss., Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/15039.

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10

Sun, Yechuan, and 孙也川. "Improvement of polymer solar cells through device design." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B47849940.

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In this thesis, fabrication of polymer solar cells through different device designs is presented and the resulted solar cell performance is discussed. Poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) are chosen as the photoactive layer materials as this material combination has been widely used and well investigated. The known properties of P3HT and PCBM make systematical studies and modeling for the effect of device designs on the performance of polymer solar cells possible although this is beyond the scope of this thesis. First, ITO electrodes were fabri

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11

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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12

Elani, U. "The design, fabrication and assessment of interdigitated back contact silicon solar cells." Thesis, Cardiff University, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354744.

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13

Zhou, Di. "Conception and realization of solar cells based on silicon nanostructures." Thesis, Lille 1, 2013. http://www.theses.fr/2013LIL10160/document.

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Dans les cellules solaires planaires silicium, le matériau doit être assez épais pour que l’absorption des photons soit efficace, et dans le même temps, l’accroissement de l’épaisseur augmente les chances de recombinaison des porteurs. Afin d’avoir à la fois absorption et couche mince, des structures radiales (nanopiliers ou nanocones) peuvent être utilisées, qui ont des diamètres inférieurs à la longueur de diffusion des porteurs minoritaires, ce qui garantit une bonne collecte des porteurs. Ce travail présente la réalisation et la caractérisation de cellules solaires silicium bas coût, basée

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14

Rosenberg, Glenn Alan 1960. "Monolithic series connected solar cell array." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/276950.

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Single crystal silicon solar cells for use under high concentration sunlight presently exhibit the highest conversion efficiencies. The following paper represents further work done to improve the efficiency of crystalline silicon solar cells through improved design. Design features and processing to address the loss mechanisms encountered in silicon solar cells are discussed. An improved solar cell structure has resulted from this work along with a practical processing sequence. Experiments were performed to show the practicality of pattern formation on the walls of the V-groove structures usi

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15

Zhang, Di, and 张笛. "Transparent electrode design and interface engineering for high performance organic solar cells." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/202360.

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Abstract (sommario):

With the growing needs for energy, photovoltaic solar cells have attracted increasing research interests owing to its potentially renewable, feasible and efficient applications. Compared to its inorganic counterparts, organic solar cell (OSC) is highly desirable due to the low-cost processing, light weight, and the capability of flexible applications. While rapid progress has been made with the conversion efficiency approaching 10%, challenges towards high performance OSCs remain, including further improving device efficiency, fully realizing flexible applications, achieving more feasible larg

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16

Chen, Lüzhou, and 陈绿洲. "Optical design of organic solar cells by 3-D modeling of device structures." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/196035.

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Abstract (sommario):

Organic solar cells (OSCs) have attracted intense attention in recent years due to their advantages of low cost, easy fabrication, and high flexibility compared to its inorganic counterparts. However, due to the conflicts between the short diffusion length of excitons and long absorption length of incident photons, the thickness of OSCs is typically thin, and thus power conversion efficiency (PCE) is generally lower than traditional silicon solar cells. Therefore, an exquisite design of light trapping schemes is essential to the PCE improvement. Generally, physical guideline of light trapping

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17

Hultmar, Oscar, Johan Paulsson, and Jonathan Sundell. "Mechanical design and construction of solar panel experiment in stratospheric conditions." Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-356131.

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This project will be a part of the LODESTAR experiment. LODESTAR is one of the experiments scheduled to fly on the REXUS/BEXUS 26 high altitude balloon flight. The primary objective of the experiment is to investigate the effects of cosmic radiation on CIGS solar cells. The objective of this project is to build a mechanical design that can fulfill all requirements set by the ESA user manual. The mechanical design will first be drawn in mechanical CAD, where the drawing will be constructed from the ESA requirements. Later the design will be simulated in order to choose appropriate materials and

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18

Sheoran, Manav. "Development of high-efficiency solar cells on thin silicon through design optimization and defect passivation." Diss., Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/33902.

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The overall goal of this research is to improve fundamental understanding of the hydrogen passivation of defects in low-cost silicon and the fabrication of high-efficiency solar cells on thin crystalline silicon through low-cost technology development. A novel method was developed to estimate the flux of hydrogen, released from amorphous silicon nitride film, into the silicon. Rapid-firing-induced higher flux of hydrogen was found to be important for higher defect passivation. This was followed by the fabrication of solar cell efficiencies of ~ 17% on low-cost, planar cast multicrystalline sil

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19

Zeng, Lirong Ph D. Massachusetts Institute of Technology. "High efficiency thin film silicon solar cells with novel light trapping : principle, design and processing." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/44392.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2008.<br>Includes bibliographical references.<br>One major efficiency limiting factor in thin film solar cells is weak absorption of long wavelength photons due to the limited optical path length imposed by the thin film thickness. This is especially severe in Si because of its indirect bandgap. This thesis invents a novel light trapping scheme, the textured photonic crystal (TPC) backside reflector, which can enhance path length by at least several hundred times the film thickness for sufficien

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20

Whyburn, Gordon Patrick. "A simple organic solar cell." Pomona College, 2007. http://ccdl.libraries.claremont.edu/u?/stc,21.

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Finding renewable sources of energy is becoming an increasingly important component of scientific research. Greater competition for existing sources of energy has strained the world’s supply and demand balance and has increased the prices of traditional sources of energy such as oil, coal, and natural gas. The experiment discussed in this paper is designed to identify and build an inexpensive and simple method for creating an effective organic solar cell.

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21

Cheriton, Ross. "Design and Characterization of InGaN/GaN Dot-in-Nanowire Heterostructures for High Efficiency Solar Cells." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37905.

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Abstract (sommario):

Light from the sun is an attractive source of energy for its renewability, supply, scalability, and cost. Silicon solar cells are the dominant technology of choice for harnessing solar energy in the form of electricity, but the designs are approaching their practical efficiency limits. New multijunction designs which use the tunable properties of the more expensive III-V semiconductors have historically been relegated to space applications where absolute power conversion efficiency, resilience to radiation, and weight are more important considerations than cost. Some of the more recent develop

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22

Kamanzi, Janvier. "Thermal electric solar power conversion panel development." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2527.

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Thesis (DTech (Engineering))--Cape Peninsula University of Technology, 2017.<br>The world has been experiencing energy-related problems following pressuring energy demands which go along with the global economy growth. These problems can be phrased in three paradoxical statements: Firstly, in spite of a massive and costless solar energy, global unprecedented energy crisis has prevailed, resulting in skyrocketing costs. Secondly, though the sun releases a clean energy, yet conventional plants are mainly being run on unclean energy sources despite their part in the climate changes and global war

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23

Chen, Song. "Design, synthesis and characterization of A-D-A structural porphyrin small molecules for bulk heterojunction organic solar cell applications." HKBU Institutional Repository, 2017. https://repository.hkbu.edu.hk/etd_oa/477.

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Bulk heterojunction organic solar cells (BHJ OSCs) have been recognized as one of the most promising next generation green technology alternatives to inorganic solar cells because of the low-cost, lightweight, flexibility. Specifically, the use of small molecules instead of polymers as donors in BHJ OSC have been developed very fast recently because small molecules can be facilely synthesized and easily purified, and have a determined molecular structure without batch-to-batch variations. To date, those among the most efficient small molecules were constructed as acceptor-donor-acceptor (A-D-A

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24

Panse, Pushkaraj. "Copper Gallium Diselenide Solar Cells: Processing, Characterization and Simulation Studies." [Tampa, Fla. : s.n.], 2003. http://purl.fcla.edu/fcla/etd/SFE0000080.

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25

Giatti, Brandon. "Optical Properties of Nanostructured Dielectric Coatings." PDXScholar, 2014. https://pdxscholar.library.pdx.edu/open_access_etds/1940.

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Solar cells have extrinsic losses from a variety of sources which can be minimized by optimization of the design and fabrication processes. Reflection from the front surface is one such loss mechanism and has been managed in the past with the usage of planar antireflection coatings. While effective, these coatings are each limited to a single wavelength of light and do not account for varying incident angles of the incoming light source. Three-dimensional nanostructures have shown the ability to inhibit reflection for differing wavelengths and angles of incidence. Nanocones were modeled and sh

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26

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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27

Howells, Calvyn T. "Material and device design for organic photovoltaics." Thesis, University of St Andrews, 2015. http://hdl.handle.net/10023/6810.

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This thesis presents novel materials for photovoltaic conversion. The materials described are solution-processable organic semiconductors and have been used in the fabrication of organic photovoltaic cells (OPVs). The widely used PEDOT:PSS layer was investigated in P3HT and PTB7 photovoltaics. By doping, the efficiencies recorded were amongst the highest reported in the field using a conventional architecture. Two low band-gap BODIPY-based polymers were introduced and shown to have properties favourable for optoelectronics. Photovoltaics consisting solely of the polymers as the active componen

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28

Thibert, Sébastien. "Etude de la métallisation de la face avant des cellules photovoltaïques en silicium." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENI025/document.

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À l'échelle industrielle, la métallisation de la face avant des cellules photovoltaïques est réalisée grâce au procédé de sérigraphie depuis plus de 40 ans. Une pâte à base d'argent est imprimée avant d'être recuite à haute température. La robustesse, la simplicité et la haute cadence de production de ce procédé ont largement contribué à son succès. L'étape de métallisation est critique dans la chaîne de fabrication des cellules. D'un côté, les propriétés des contacts déposés déterminent les performances finales des cellules. D'un autre côté, plus de 7% de la consommation mondiale d'argent son

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29

Davidsson, Oscar, and Marcus Obrelius. "Faktorer och aspekter att beakta vid solcellsinstallationer." Thesis, Linnéuniversitetet, Institutionen för byggteknik (BY), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-86906.

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Människans energianvändning måste förändras. Mer än 80 % av den primära energianvändningen är i dagsläget baserad på fossila bränslen. För att uppnå en mer hållbar klimatutveckling måste en större del av energianvändningen framställas av förnybara energikällor, exempelvis solenergi. Syftet med denna studie är att exemplifiera praktiska, tekniska, ekonomiska samt arkitektoniska faktorer och aspekter som bör tas i beaktande vid solcellsinstallationer i en bebyggelse. Genom en fallstudie undersöktes Sankt Sigfridområdet i Växjö. Fallstuiden avgränsades till fyra fastigheter med möjlig solcellsins

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30

Pokorný, Marek. "Charakterizace vlastností fotovoltaického systému." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219073.

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The aim of this work is informed first about photovoltaics universally, works to inform the photovoltaic panels and complete plants. The work also includes instructions on how to implement PVP in accordance with law. Another part is the rough draft of the photovoltaic power 30 kWp, which can be placed on the house, computation and calculation of investment and them profitable investments to time. Design is made in two separate forms of the Fronius Solar and Sunny Design, their outputs are compared. The practical part of this work cooperates with the company SOLARTEC Ltd. for experimental measu

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31

Greer, Michael R. "A 6% efficient MIS particulate silicon solar cell." Thesis, 1998. http://hdl.handle.net/1957/34037.

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Fangsuwannarak, Thipwan Photovoltaic &amp Renewable Energy Engineering UNSW. "Electronic and optical characterisations of silicon quantum dots and its applications in solar cells." 2007. http://handle.unsw.edu.au/1959.4/44340.

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In this thesis, the structural, optical and electrical properties of crystalline silicon quantum dots (SiQDs) are examined for application to silicon based tandem cells. The approach has been to concentrate on all silicon devices by taking advantage of quantum confinement in low-dimensional Si. RF magnetron co-sputtering provided the capability of creating superlattice structures in conjunction with high temperature annealing, to form Si nanocrystals in an oxide matrix. Structural techniques, including Fourier transform infrared spectroscopy (FTIR), micro-Raman spectroscopy, transmission elect

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33

Pillai, Supriya School of Photovoltaic &amp Renewable Energy Engineering UNSW. "Surface plasmons for enhanced thin-film silicon solar cells and light emitting diodes." 2007. http://handle.unsw.edu.au/1959.4/40877.

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Photovoltaics (PV) is fast emerging as an attractive renewable energy technology due to concerns of global warming, pollution and scarcity of fossil fuel supplies. However to compete in the global energy market, solar cells need to be cheaper and more energy efficient. Silicon is the favorite semiconductor used in solar photovoltaic cells because of its ubiquity and established technology, but due to its indirect bandgap silicon is a poor absorber and light emitter. Thin film cells play an important role in low cost photovoltaics, but at the cost of reduced efficiencies when compared to wafer

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34

Chang, Wan-Rou, and 張婉柔. "Optimized Design of Novel Silicon Thin Film Solar Cells." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/80939121432508470844.

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碩士<br>國立中山大學<br>電機工程學系研究所<br>101<br>In this work, combining the advantages of amorphous silicon and microcrystalline silicon, we propose a new structure of solar cell “ ITO / p-a-Si:H / i1-a-Si:H / i2-μc-Si:H / n-μc-Si:H / ITO ”. The i1-a-Si:H can make the open circuit voltage much higher due to the high mobility bandgap. The i2-μc-Si:H can get more effectively absorb of sunlight, so the novel p-i1-i2-n solar cell can get higher short circuit current density. The simulation results indicate the conversion efficiency is higher than that of the conventional silicon solar cell at least 8.8 % to 1

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35

Chen, Wei. "Modeling, design and fabrication of thin-film microcrystalline silicon solar cells." Thesis, 2000. http://library1.njit.edu/etd/fromwebvoyage.cfm?id=njit-etd2000-013.

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Logiudice, Vito. "Design, fabrication and testing of silicon interdigitated back contact (IBC) solar cells." Thesis, 1993. http://spectrum.library.concordia.ca/2974/1/MM87320.pdf.

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37

Chao, Tse-Min, and 趙澤民. "Design, Simulation and Characterization of Thin Film Amorphous Silicon Based Solar Cells." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/15786669219945898710.

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碩士<br>國立臺灣大學<br>電子工程學研究所<br>100<br>In this thesis, we used TCAD program to simulate and design the amorphous silicon based solar cells. According to simulation results, the optimization of solar cell design and related physical mechanism can be obtained. The simulated illumination current-voltage characteristics of single junction a-Si:H and μc-Si:H were compared to experimental results for verifying the accuracy of material parameters. Based on the analysis of realistic thin film Si solar cells, the optimizations of surface textures were done and some discussions were given. It turned out tha

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38

Chen, Yung-Chin, and 陳永金. "Design and Fabrication of Anti-reflection Coating for Amorphous Silicon Solar Cells." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/98792836958852674607.

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碩士<br>正修科技大學<br>電子工程研究所<br>95<br>The reflectance on the device surface influences greatly the energy conversion efficiency of solar cell and should be considered as an important topic concerned with the practical use of solar cells. We use the technique of AR coatings (anti-reflectance coatings) to lessen the influence of reflectance and therefore to increase the transmittance of illuminating light. In this paper, it will study the anti-reflectance coatings to affect conversion efficiency of amorphous solar cell. First, the properties of anti-reflection (AR) coatings in the visible light were

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39

Kao, Chi-wei, and 高啟瑋. "Design and Process Development of Poly-crystalline Silicon Thin Film Solar Cells." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/05676266390989885057.

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碩士<br>國立雲林科技大學<br>電子與資訊工程研究所<br>93<br>This work has studied on the poly-crystalline silicon thin film solar cell process development. Baseline process flow of the thin film solar cell has been designated to achieve high conversion efficiency. Basically, Via hole Etching for the Separation of Thin film (VEST) structure is used for the solar cells which not only is of modular process but also can reduce the manufacturing cost. This work utilized LPCVD to deposit poly-crystalline silicon thin film on a single-crystalline silicon wafer with a thin SiO2 film on it. Thermal evaporation was used to d

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Wu, HsinYu, and 吳欣諭. "Design And Characterization Of Back Electrode Applied For Silicon Thin Film Solar Cells." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/85714087059067719954.

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碩士<br>明道大學<br>材料科學與工程學系碩士班<br>100<br>In this study, different back contact (Ag, AlTi, AlCrTi) were deposited by DC magnetron sputtering under different power, Ar gas flow rate and pressure. The effect of sputtering deposition parameters on optical, electrical and structural properties of back contact was carried out by four-point probe method, UV-vis spectrometer and scanning electron microscope. This research also adopted the thin film optical simulation software, TracePro, to find the suitable material for reflection layer, and investigate the optical properties. The results showed that usi

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Sahoo, Kartika Chandra, and Kartika. "Design and Fabrication of Sub-wavelength Structures on Silicon Nitride for Solar Cells." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/63970518523390420268.

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博士<br>國立交通大學<br>材料科學與工程系所<br>98<br>In this dissertation, we numerically study the reflectance of sub-wavelength structures on silicon nitride for solar cell application. Based on the numerical study, we develop a fabrication method to form the sub-wavelength structures on silicon nitride surface for solar cells. Since silicon nitride is a well known antireflection coating used in semiconductor industry, we explore the texturization on silicon nitride antireflection coating and its optical properties. The main motivation behind this lies in the fact that the sub-wavelength structures will act a

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"Growing Cu(In,Ga)Se₂ thin film solar cells with high efficiency and low production costs." 2012. http://library.cuhk.edu.hk/record=b5549502.

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銅銦鎵硒薄膜太陽能電池因為其高效率及相對低廉的成本，商業應用已經開始陸續出現。我們自主研發的集成式銅銦鎵硒薄膜電池生產系統可以全程製作襯底大小為10cm x 10cm 的電池及剃型組件。本研究工作主要分為兩個方向:第一個方向是研究及測試生長高效率太陽能電池及組件的具體條件。通過儀器改進及電池每層鍍膜的條件優化，能夠重複的生長高效率電池及組件; 第二個方向是通過減少銅銦鎵硒吸光習的厚度從而達到降低電池生產成本的目的。<br>銅銦鎵硒採用三步共蒸法製備吸收層。第一步先蒸發銦、鎵、硒三種元素形成n型硒化銦(鎵)薄膜;第二步蒸發銅、硒形成銦鎵硒半導體薄膜; 第三步蒸發一層額外的型硒化銦(鎵)薄膜保證整體電池是p型半導體。三步期間的襯底溫度經過小心調試，以使得合適的鎵梯度能夠在吸收層裹形成。通過每一層的條件優化我們能夠生長出高光電轉換效率的太陽能電池(17%)及組件(12%)。<br>太陽能電池的變溫測試及弱光測試對瞭解其應用潛能存在非常重要的作用。通過多組對比實驗發現銅銦鎵硒電池的溫度係數可以通過增加鎵在吸收層的組分而得到改善。同時，電池的弱光表現可以通過減少銅的量得到很大的提高。STM 的研究發現弱光表現得到改善是因為吸收層顆粒介面電阻的增加而導致的。<br>減少吸收層的厚度有利於進一步減少太陽能電池的材料成本。當電池的吸收層厚度小於一微米時，開路電壓跟短路電流都明顯有所減少，從而導致太

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Davis, Jonathan Tesner. "Membraneless Electrolyzers for Solar Fuels Production." Thesis, 2019. https://doi.org/10.7916/d8-ypyq-6d71.

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Solar energy has the potential to meet all of society’s energy demands, but challenges remain in storing it for times when the sun is not shining. Electrolysis is a promising means of energy storage which applies solar-derived electricity to drive the production of chemical fuels. These so-called solar fuels, such as hydrogen gas produced from water electrolysis, can be fed back to the grid for electricity generation or used directly as a fuel in the transportation sector. Solar fuels can be generated by coupling a photovoltaic (PV) cell to an electrolyzer, or by directly converting light to c

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I-LANG, TSAI, and 蔡一郎. "Amorphous Silicon thin film Solar Cells by Laser Annealing and Ion Implantation Low Temperate Process Design on Glass." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/79363614942100591800.

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碩士<br>中華大學<br>機械與航太工程研究所<br>95<br>The purpose of this paper is for the amorphous silicon solar cell design and performance analyses on the low sodium glass substrate. The electric conductive and characteristics analyses were tested for the P/N junction, aluminum electrode as well as the transparent ITO layer. The thin film layers of P/N junction, aluminum electrode as well as the transparent ITO were obtained by ion implantation, E-gun evaporation and Plasma Enhanced Chemical Vapor Deposition (PECVD) methods, respectively. In order to raise the performance efficiency of solar cell on the glass

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Cheng, Felice, and 鄭淑珍. "The Design of Low Power Implantable Pseudo-BJT-Based Silicon Retina with Solar Cells for Artificial Retinal Prostheses." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/n4n2xv.

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碩士<br>國立交通大學<br>電子工程系所<br>92<br>In this thesis, the Pseudo-BJT-based silicon retina with solar cells for artificial retinal prosthesis is designed and fabricated in 0.35um CMOS technology. The Pseudo-BJT-based silicon retina possesses more functions of retinal cells than current sub-retinal prosthesis. Besides, the solar cell is used to supply power to the artificial retina and this feature makes implantation of the chip to the eye more feasible. Two artificial retinal prostheses are fabricated with a standard TSMC 0.35um CMOS process: one is for implantation and the other is for instrumen

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Bahabry, Rabab R. "Towards Cost-Effective Crystalline Silicon Based Flexible Solar Cells: Integration Strategy by Rational Design of Materials, Process, and Devices." Diss., 2017. http://hdl.handle.net/10754/626350.

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The solar cells market has an annual growth of more than 30 percent over the past 15 years. At the same time, the cost of the solar modules diminished to meet both of the rapid global demand and the technological improvements. In particular for the crystalline silicon solar cells, the workhorse of this technology. The objective of this doctoral thesis is enhancing the efficiency of c-Si solar cells while exploring the cost reduction via innovative techniques. Contact metallization and ultra-flexible wafer based c-Si solar cells are the main areas under investigation. First, Silicon-based s

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Chen, Chien-Wei, and 陳建瑋. "Optical simulation of silicon thin-film tandem solar cells and optimization of surface texturing design parameters for improving energy conversion efficiency." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/80953914007056087000.

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碩士<br>國立臺灣科技大學<br>光電工程研究所<br>101<br>In this work, we used commercial optical simulation software FRED to simulate surface-textured solar cells and to study the optical properties under various conditions. First we studied the scattering efficiency in terms of haze and equivalent optical path length factor as a function of scatter size for four incident light wavelengths: 550nm, 700nm, 900nm and 1200nm.Thus the ideal range in scatter size for silicon thin-film solar cells was obtained. After that, we studied and found a linear relationship between the surface coverage percentage of scatters and

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Mayer, Alexander Rui Pfaff. "Development and construction of a device related to a new structured metallization concept for back-contact crystalline silicon solar cells by using metal foil." Master's thesis, 2014. http://hdl.handle.net/10316/38835.

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Dissertação de Mestrado Integrado em Engenharia Mecânica apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra<br>Metallization and contacting processes have a significant impact on the total manufacturing cost of the high-efficiency solar cells. The metallization of silicon crystalline back-contact solar cells is difficult and still a major issue from the industrial point of view. The core of the current thesis introduces the development of a device, designed to realize and evaluate the potential of a new rear side metallization concept for backcontact cells. Here,

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Altschul, Emmeline Beth. "Transition metal solar absorbers." Thesis, 2012. http://hdl.handle.net/1957/33382.

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A new approach to the discovery of high absorbing semiconductors for solar cells was taken by working under a set of design principles and taking a systemic methodology. Three transition metal chalcogenides at varying states of development were evaluated within this framework. Iron pyrite (FeS��) is well known to demonstrate excellent absorption, but the coexistence with metallic iron sulfides was found to disrupt its semiconducting properties. Manganese diselenide (MnSe��), a material heavily researched for its magnetic properties, is proposed as a high absorbing alternative to iron pyri

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Ghane, Parvin. "Fabrication and analysis of CIGS nanoparticle-based thin film solar cells." 2013. http://hdl.handle.net/1805/3697.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Fabrication and analysis of Copper Indium Gallium di-Selenide (CIGS) nanoparticles-based thin film solar cells are presented and discussed. This work explores non-traditional fabrication processes, such as spray-coating for the low-cost and highly-scalable production of CIGS-based solar cells. CIGS nanoparticles were synthesized and analyzed, thin CIGS films were spray-deposited using nanoparticle inks, and resulting films were used in low-cost fabrication of a set of CIGS solar cell devices. This synthesis method utilizes a chemi

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