Download or read book Preparation and Characterization of Silver Copper Indium Gallium Diselenide Thin film Solar Cells written by 吳俊杰 and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation and Characterization of Copper Indium Gallium Diselenide Powders and Films Used in the Absorber Layer of Thin film Solar Cells written by 吳忠憲 and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation and Characterization of Copper Indium Gallium Diselenide Films Used in the Absorber Layers of Thin film Solar Cells written by 陳富珊 and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Silver Copper Indium Gallium Diselenide Solar Cells on Flexible Substrates written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation and Characterization of Copper Indium Gallium Diselenide and Copper Zinc Tin Sulfide Powders Used as the Absorber of Thin film Solar Cells written by 林詣軒 and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation and Characterization of Silver Indium Diselenide Used as the Absorber in Thin film Solar Cells written by 簡思佳 and published by . This book was released on 2010 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical and Photovoltaic Properties of Copper Indium gallium Diselenide Materials and Solar Cells written by Puruswottam Aryal and published by . This book was released on 2014 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: The demand for clean and renewable energy sources in recent years has motivated research on the development of low cost, thin film photovoltaic devices. As a consequence, tools for the investigation and characterization of thin film photovoltaic component materials and devices, which can be implemented in real time as well as under in-line and off-line measurement conditions, are becoming increasingly important. Real time spectroscopic ellipsometry (RTSE) and ex-situ mapping spectroscopic ellipsometry (SE) are powerful characterization tools suitable for applications in the optimization of device performance and the evaluation of thin film photovoltaics technology scale-up from dot cell sizes in research laboratories to full module sizes in factories. These non-destructive optical probes implement multichannel spectroscopic detection for achieving high measurement speed, while simultaneously yielding high precision light-matter interaction parameters. The interaction parameters can be analyzed to obtain layer thicknesses as well as their optical properties from which material properties such as composition can be determined. The layer thicknesses and their optical properties in turn provide insights into the fraction of incident light absorbed in the active layer of the solar cell and also provide a basis for short-circuit current optimization through optical simulations. In this dissertation research, Cu(In, Ga)Se2 films with different Ga contents have been prepared by a one stage co-evaporation process. These films have been studied by spectroscopic ellipsometry (RTSE) in real time during their deposition, which has been performed at high temperature (570oC). After cooling the films to room temperature, in-situ SE measurements were undertaken in order to extract the dielectric functions of the thin film materials. An extended parameterization was established through the fitting of these dielectric functions to analytical functions, followed by the development of expressions in the free parameters that describe these analytical functions versus the Ga content. As a result of this parameterization, dielectric function spectra can be predicted for any desired composition. This capability was applied for the structural and compositional mapping of CIGS thin films and solar cells deposited over 10 cm × 10 cm substrate areas. Correlations of the deduced structural and compositional parameters with the corresponding device performance characteristics have yielded important insights with the potential to assist in the optimization of solar cell devices incorporating thin CIGS layers. In addition, a methodology of external quantum efficiency simulation (EQE) has been developed that relies on ex-situ spectroscopic ellipsometry analysis of complete thin film solar cells and so does not require free parameters. The simulations have been applied to CIGS and a-Si:H solar cells, based on the assumption that all photo-generated carriers within the active layers of these cells are collected without any recombination losses. Thus, it should be noted the predicted EQE is the maximum that the solar cell having the given structure can generate, and the difference between the predicted and measured EQE for the same device can provide insights into recombination losses in the device. Because the predicted EQE is based on specular interfaces, it can also be lower than the measured values due to light trapping caused by rough surfaces and interfaces. In another research area of interest for CIGS materials and solar cells, the role of the stage II/III substrate temperature (540oC - 640oC) in the deposition of the films by the three stage process has been studied, as has its effect on device performance, sodium diffusion, and grain size. Since standard soda-lime glass does not tolerate temperatures above 570oC due to glass softening, specially engineered high temperature soda-lime glass produced by Nippon Electric Glass Co., Japan was used as the substrate material in this study. It was found that the average device performance improves up to 620oC as a consequence of reduced shunting and improved diode quality factor which affect the fill factor of the device. At 640oC, however, these parameters have exhibited a wider distribution, and thus have yielded a lower average efficiency for the cells. SEM micrographs of these devices showed that the grain size first increased with increasing temperature up to 620oC, and then showed a bimodal distribution at 640oC. Finally, ex-situ mapping ellipsometry has been applied in the study of silver nanoparticle thin films prepared by the drop casting method. These films are important because of the plasmonic effects they exhibit. Such effects can be exploited by integrating the nanoparticle layers into solar cells in order to promote light trapping, and hence, increase the overall efficiency of the cells. A study of these films with mapping spectroscopic ellipsometry provides a means of determining thickness uniformity over large areas that is critical for scale-up of the deposition processes. The uniformity of other parameters of the films such as the plasmon resonance energy and its broadening are equally important to ensure maximum coupling of light into the solar cell absorber layer.
Download or read book Chemical and Electronic Characterization of Copper Indium Gallium Diselenide Thin Film Solar Cells and Correlation of These Characteristics to Solar Cell Operation written by Michael Justin Hetzer and published by . This book was released on 2009 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: This dissertation embodies solid state physics research to understand the basic physical mechanisms underlying the movement of charge inside solar cells, in particular, the high efficiency copper indium gallium diselenide (CIGS) solar cell. The fundamental physics of the operation of these complex polycrystalline alloys remains incompletely understood. CIGS based solar cells have obtained conversion efficiencies of nearly 20%. Solar cells based on this material have been examined in this work using high resolution, atomic scale techniques to better understand the fundamental operation of these solar cells as well as correlating these basic properties to the operation of the finished full solar cell devices. Auger Electron Spectroscopy (AES) measurements of the chemical composition taken with nanometer resolution in an ultra high vacuum secondary electron microscope show evidence for compositional changes at the grain boundaries of the CIGS layer. These findings support theoretical calculations that predict higher solar cell performance as a result. Additionally, measurements have been taken with cathodoluminescence spectroscopy (CLS) studying the band structure locally within the CIGS layers. Significant variation is present in the resulting spectra, even within single grains indicating improved uniformity could be a path to better solar cell operation. Attempts to correlate the chemical composition and the energy band structure using AES and CLS measurements have yielded some interesting initial results but more work remains to be done to obtain a deeper understanding of the physics involved in these solar cells. Correlations have been observed between the energy band structure and the performance parameters of the solar cell, such as efficiency. These results indicate the possibility of alloying between the different layers of the solar cell and also that this intermixing is detrimental to the performance of the solar cell. This work has revealed important fundamental characteristics of these materials regarding changes in the atomic composition and energy band structure and how these changes influence the performance of the CIGS layer.
Download or read book Preparation and Characterization of Copper Indium Diselenide based Solar Cells with a Thin Zinc Selenide Intermediate Layer written by Ji-Beom Yoo and published by . This book was released on 1989 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Characterization of Thin Film Solar Cells written by Mowafak Al-Jassim and published by Institution of Engineering and Technology. This book was released on 2020-09-17 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polycrystalline thin-film solar cells have reached a levelized cost of energy that is competitive with all other sources of electricity. The technology has significantly improved in recent years, with laboratory cell efficiencies for cadmium telluride (CdTe), perovskites, and copper indium gallium diselenide (CIGS) each exceeding 22 percent. Both CdTe and CIGS solar panels are now produced at the gigawatt scale. However, there are ongoing challenges, including the continued need to improve performance and stability while reducing cost. Advancing polycrystalline solar cell technology demands an in-depth understanding of efficiency, scaling, and degradation mechanisms, which requires sophisticated characterization methods. These methods will enable researchers and manufacturers to improve future solar modules and systems.
Download or read book Characterization of Copper Indium Gallium Selenide CIGS Solar Cells Fabricated on Flexible Light weight Stainless Steel Substrates for Space Applications written by Gaurav Aniruddha Naik and published by . This book was released on 2001 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fabrication and Analysis of CIGS Nanoparticle based Thin Film Solar Cells written by Parvin Ghane and published by . This book was released on 2012 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 chemical colloidal process resulting in the formation of nanoparticles with tunable band gap and size. Based on theoretical and experimental studies, 100 nm nanoparticles with an associated band gap of 1.33 eV were selected to achieve the desired film characteristics and device performances. Scanning electron microcopy ΔΚ� αλγ πζφδ κδαπροδκδλϟ ζλπϟορκδλϟπ �Φδϟαπζφδο� ςδοδ ρπδγ ϟμ πϟργυ ϟϝδ πζφδ αλγ πϝανδ με ϟϝδ λαλμναοϟζϐιδπ� Διδϐϟομλ γζπνδοπζσδ πνδϐϟομπϐμνυ �ΔΓΠ� οδπριϟπ ϐμλεζοκδγ ϟϝδ νοδπδλϐδ με ϟϝδ εμρο διδκδλϟπ� �μννδο ��ρ�� Ζλγζρκ �Ζλ�� Ϛαιιζρκ �Ϛα�� αλγ Πδιδλζρκ �Πδ� ζλ ϟϝδ πυλϟϝδπζφδγ λαλμναοϟζϐιδπ� ςϝζιδ Τ�οαυ γζεεοαϐϟζμλ �ΤΟΓ� οδπριϟπ ϐμλεζοκδγ ϟϝδ ϟδϟοαϛμλαι ϐϝαιϐμνυοζϟδ ϐουπϟαι πϟορϐϟροδ� Ϟϝδ ριϟοασζμιδϟ�σζπζβιδ�λδαο ζλεοα�οδγ �ΡΣ�Σζπ�ΛΖΟ� πνδϐϟομνϝμϟμκδϟου οδπριϟπ με ϟϝδ λαλμναοϟζϐιδπ γδνζϐϟδγ ιζϛϝϟ αβπμοβαλϐδ ϐϝαοαϐϟδοζπϟζϐπ ςζϟϝ ϛμμγ μσδοιαν αϛαζλπϟ ϟϝδ πμιαο ζοοαγζαλϐδ πνδϐϟορκ� Ϟϝδ γδνμπζϟζμλπ με ϟϝδ λαλμναοϟζϐιδπ ςδοδ νδοεμοκδγ ρπζλϛ πνοαυ�ϐμαϟζλϛ ϟδϐϝλζξρδπ� Λαλμναοϟζϐιδ ζλθ γζπνδοπδγ ζλ δϟϝαλμι ςαπ πνοαυδγ ρπζλϛ α πζκνιδ αζοβορπϝ ϟμμι� Ϟϝδ ϟϝζϐθλδππδπ με ϟϝδ γδνμπζϟδγ εζικπ ςδοδ ϐμλϟομιιδγ ϟϝομρϛϝ σαοζαϟζμλπ ζλ ϟϝδ γδνμπζϟζμλ πϟδνπ� πρβπϟοαϟδ ϟμ πνοαυ�λμφφιδ γζπϟαλϐδ� πζφδ με ϟϝδ λμφφιδ� αλγ αζο νοδππροδ� Προεαϐδ εδαϟροδπ αλγ ϟμνμιμϛυ με ϟϝδ πνοαυ�γδνμπζϟδγ εζικπ ςδοδ αλαιυφδγ ρπζλϛ αϟμκζϐ εμοϐδ κζϐομπϐμνυ �ΑΕΚ�� Ϟϝδ γδνμπζϟδγ εζικπ ςδοδ μβπδοσδγ ϟμ βδ οδιαϟζσδιυ ρλζεμοκ ςζϟϝ α κζλζκρκ ϟϝζϐθλδππ με ʹ«« λκ� Νμπϟ�αλλδαιζλϛ με ϟϝδ εζικπ αϟ σαοζμρπ ϟδκνδοαϟροδπ ςαπ πϟργζδγ εμο ϟϝδ νϝμϟμδιδϐϟοζϐ νδοεμοκαλϐδ με ϟϝδ γδνμπζϟδγ εζικπ� �ροοδλϟ γδλπζϟυ αλγ σμιϟαϛδ �Η�Σ� ϐϝαοαϐϟδοζπϟζϐπ ςδοδ κδαπροδγ ρλγδο ιζϛϝϟ ζιιρκζλαϟζμλ αεϟδο αλλδαιζλϛ αϟ γζεεδοδλϟ ϟδκνδοαϟροδπ� Ζϟ ςαπ μβπδοσδγ ϟϝαϟ ϟϝδ ϝζϛϝδπϟ νϝμϟμδιδϐϟοζϐ δεεδϐϟ οδπριϟδγ ζλ αλλδαιζλϛ ϟδκνδοαϟροδπ με »͵«�“͵« γδϛοδδ ϐδλϟζϛοαγδ ρλγδο αζο αϟκμπνϝδοδ� Ϟϝδ γδσδιμνδγ �ΖϚΠ εζικπ ςδοδ ζκνιδκδλϟδγ ζλ πμιαο ϐδιι γδσζϐδπ ϟϝαϟ ζλϐιργδγ �αγκζρκ Πριεζγδ ��γΠ� αλγ Φζλϐ Μτζγδ �ΦλΜ� ιαυδοπ� Ϟϝδ �γΠ εζικ πδοσδγ απ ϟϝδ λ�ϟυνδ ιαυδο ϟμ εμοκ α νλ ηρλϐϟζμλ ςζϟϝ ϟϝδ ν�ϟυνδ �ΖϚΠ ιαυδο� Ζλ α ϟυνζϐαι γδσζϐδ� α ”«« λκ �γΠ ιαυδο ςαπ γδνμπζϟδγ ϟϝομρϛϝ ϐϝδκζϐαι βαϟϝ γδνμπζϟζμλ μλ α » �ơκ ϟϝζϐθ �ΖϚΠ εζικ� Α ϟϝζλ ιαυδο με ζλϟοζλπζϐ ΦλΜ ςαπ πνοαυ ϐμαϟδγ μλ ϟϝδ �γΠ εζικ ϟμ νοδσδλϟ πϝμοϟζλϛ ςζϟϝ ϟϝδ ϟμν ϐμλγρϐϟμο ιαυδο� »�͵ �ơκ πνοαυ�γδνμπζϟδγ αιρκζλρκ γμνδγ ΦλΜ ιαυδο� Α πδϟ με εαβοζϐαϟδγ γδσζϐδπ ςδοδ ϟδπϟδγ ρπζλϛ α Θδζϟϝιδυ πδκζϐμλγρϐϟμο ϐϝαοαϐϟδοζφαϟζμλ ζλπϟορκδλϟ αλγ κζϐομκαλζνριαϟμο νομβδ πϟαϟζμλ� Ϟϝδ ϝζϛϝδπϟ κδαπροδγ γδσζϐδ δεεζϐζδλϐυ ςαπ »�ʹ��̓ Ϟϝδ ϐμλπζγδοδγ πμιαο ϐδιι γδσζϐδπ ςδοδ πζκριαϟδγ ζλ ΑΓΔΝϞ “�« πμιαο ϐδιι πζκριαϟμο βαπδγ μλ ϟϝδ ϛζσδλ εαβοζϐαϟζμλ αλγ δτνδοζκδλϟαι ναοακδϟδοπ� Ϟϝδ πζκριαϟζμλ κμγριδ γδσδιμνδγ ςαπ πρϐϐδππεριιυ ϐαιζβοαϟδγ ςζϟϝ ϟϝδ δτνδοζκδλϟαι οδπριϟπ� Ϟϝζπ κμγριδ ϐαλ βδ ρπδγ εμο ερϟροδ γδσδιμνκδλϟ με ϟϝδ ϛζσδλ ςμοθ�
Download or read book Preparation Of Copper Indium Gallium Diselenide Films For Solar Cells written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: High quality thin films of copper-indium-gallium-diselenide useful in the production of solar cells are prepared by electrodepositing at least one of the constituent metals onto a glass/Mo substrate, followed by physical vapor deposition of copper and selenium or indium and selenium to adjust the final stoichiometry of the thin film to approximately Cu(In, Ga)Se.sub. 2. Using an AC voltage of 1-100 KHz in combination with a DC voltage for electrodeposition improves the morphology and growth rate of the deposited thin film. An electrodeposition solution comprising at least in part an organic solvent may be used in conjunction with an increased cathodic potential to increase the gallium content of the electrodeposited thin film.
Download or read book Characterization of the Optoelectronic Properties of Copper Indium Gallium Diselenide Solar Cells Using Measurements on Bifacial Devices and Device Modeling written by David Berney Needleman and published by . This book was released on 2007 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Characterization Techniques for Thin Film Solar Cells written by Daniel Abou-Ras and published by John Wiley & Sons. This book was released on 2016-07-13 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses on advanced characterization methods for thin-film solar cells that have proven their relevance both for academic and corporate photovoltaic research and development. After an introduction to thin-film photovoltaics, highly experienced experts report on device and materials characterization methods such as electroluminescence analysis, capacitance spectroscopy, and various microscopy methods. In the final part of the book simulation techniques are presented which are used for ab-initio calculations of relevant semiconductors and for device simulations in 1D, 2D and 3D. Building on a proven concept, this new edition also covers thermography, transient optoelectronic methods, and absorption and photocurrent spectroscopy.
Download or read book Thin Film Solar Cells written by Jef Poortmans and published by John Wiley & Sons. This book was released on 2006-10-16 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thin-film solar cells are either emerging or about to emerge from the research laboratory to become commercially available devices finding practical various applications. Currently no textbook outlining the basic theoretical background, methods of fabrication and applications currently exist. Thus, this book aims to present for the first time an in-depth overview of this topic covering a broad range of thin-film solar cell technologies including both organic and inorganic materials, presented in a systematic fashion, by the scientific leaders in the respective domains. It covers a broad range of related topics, from physical principles to design, fabrication, characterization, and applications of novel photovoltaic devices.
Download or read book Fabrication of Thin film Copper Indium Gallium Selenide CIGS Solar Cells for Space based Assets written by Joel P. Freyenhagen (CAPT, USAF.) and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
