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Author :
Publisher :
ISBN 13 : 9789155472870
Total Pages : 81 pages
Book Rating : 4.4/5 (728 download)
Download or read book Modelling and Degradation Characteristics of Thin-film CIGS Solar Cells written by and published by . This book was released on 2008 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Faiz Ahmad
Publisher : Springer Nature
ISBN 13 : 3031020243
Total Pages : 118 pages
Book Rating : 4.0/5 (31 download)
Download or read book Theory of Graded-Bandgap Thin-Film Solar Cells written by Faiz Ahmad and published by Springer Nature. This book was released on 2022-05-31 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thin-film solar cells are cheap and easy to manufacture but require improvements as their efficiencies are low compared to that of the commercially dominant crystalline-silicon solar cells. An optoelectronic model is formulated and implemented along with the differential evolution algorithm to assess the efficacy of grading the bandgap of the CIGS, CZTSSe, and AlGaAs photon-absorbing layer for optimizing the power-conversion efficiency of thin-film CIGS, CZTSSe, and AlGaAs solar cells, respectively, in the two-terminal single-junction format. Each thin-film solar cell is modeled as a photonic device as well as an electronic device. Solar cells with two (or more) photon-absorbing layers can also be handled using the optolelectronic model, whose results will stimulate experimental techniques for bandgap grading to enable ubiquitous small-scale harnessing of solar energy.
Author :
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (31 download)
Download or read book Shorting Path Mode of Degradation in Copper Sulfide - Cadmium Sulfide Thin-film Solar Cells written by and published by . This book was released on 1971 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mowafak Al-Jassim
Publisher : Institution of Engineering and Technology
ISBN 13 : 1839530235
Total Pages : 457 pages
Book Rating : 4.8/5 (395 download)
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.
Author : Parvin Ghane
Publisher :
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.:/5 (863 download)
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�
Author : John J. Smithrick
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (317 download)
Download or read book Effects of Thermal-shock Cycling on Thin-film Cadmium Sulfide Solar Cells written by John J. Smithrick and published by . This book was released on 1969 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal-shock cycling of Kapton, copper, and molybdenum substrate thin-film cadmium sulfide solar cells was conducted by alternately heating the cells between two heater plates and dipping them into liquid nitrogen.
Author : I M Dharmadasa
Publisher : CRC Press
ISBN 13 : 9814316075
Total Pages : 252 pages
Book Rating : 4.8/5 (143 download)
Download or read book Advances in Thin-Film Solar Cells written by I M Dharmadasa and published by CRC Press. This book was released on 2012-09-17 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book concentrates on the latest developments in our understanding of solid-state device physics. The material presented is mainly experimental and based on CdTe thin-film solar cells. It extends these new findings to CIGS thin-film solar cells and presents a new device design based on graded bandgap multilayer solar cells. This design has been experimentally tested using the well-researched GaAs/AlGaAs system and initial devices have shown impressive device parameters. These devices are capable of absorbing all radiation (UV, visible, and infra-red) within the solar spectrum and combines "impact ionization" and "impurity photovoltaic" effects. The improved device understanding presented in this book should impact and guide future device design and low-cost thin-film solar panel manufacture.
Author : Thomas M. Klucher
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.F/5 ( download)
Download or read book Effect of Cell Vintage and Certain Testing Procedures on Degradation of Cadmium Sulfide Thin-film Solar Cells written by Thomas M. Klucher and published by . This book was released on 1971 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pran Krishna Paul
Publisher :
ISBN 13 :
Total Pages : 185 pages
Book Rating : 4.:/5 (115 download)
Download or read book Impact of Deep Traps on CIGS Solar Cell Performance and Reliability written by Pran Krishna Paul and published by . This book was released on 2019 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thin-film polycrystalline Cu(In,Ga)Se2 (CIGS) based photovoltaic has the potential to reach significant market share in the terrestrial solar area due to its high optical absorption, tunable bandgap, low cost of deposition, flexibility and high material stability. Despite these advantages, CIGS conversion efficiency is still about two-thirds of the Shockley-Queisser limit due, at least in part, to crystalline defects and related carrier traps. CIGS films contain different grain boundaries, crystalline orientations, and phases which create many intrinsic and extrinsic traps/energy levels throughout the bandgap. Deep traps in CIGS not only cause the initial solar cell efficiency loss but are also responsible for instabilities (temporary and recoverable changes in the solar cell parameters such as efficiency) and degradation (permanent changes) induced by exposure to light, heat, and moisture. To improve the efficiency and reliability of CIGS-based solar cells it is necessary to reduce the number of traps; knowledge of the spatial and energetic distribution of traps, and identification of their physical sources, are thus very important. To achieve these objectives, this dissertation applied a unique set of characterization techniques: notably deep level transient/optical spectroscopes, scanning deep level transient spectroscopy, fast capacitance voltage, external quantum efficiency (EQE), and lighted current-voltage measurement. A model is proposed to explain the mechanism of light and heat induced instabilities/degradation in CIGS solar cells. The values in the model are informed by experiment including defect spectroscopies. It has been shown that the presence and concentration of two deep levels at midgap and close to the conduction band (EV+0.98 eV) can predict the change of the light, heat, moisture induced instabilities/degradation of the open circuit voltage (VOC), short circuit current (JSC), fill factor (FF) of the CIGS solar cell. This suggests that minimizing the concentrations of both the midgap and EV+0.98 eV levels will be necessary to mitigate light, heat induced instabilities/degradation in CIGS solar cells. Through this comprehensive understanding of the role of deep traps in CIGS performance and reliability, high performance reliable CIGS based photovoltaic device can be achieved through better growth processes and design strategies.
Author : Subba Ramaiah Kodigala
Publisher : Academic Press
ISBN 13 : 0080920322
Total Pages : 700 pages
Book Rating : 4.0/5 (89 download)
Download or read book Cu(In1-xGax)Se2 Based Thin Film Solar Cells written by Subba Ramaiah Kodigala and published by Academic Press. This book was released on 2011-01-03 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cu(In1-xGax)Se2 Based Thin Film Solar Cells provides valuable contents about the fabrication and characterization of chalcopyrite Cu(In1-xGax)Se2 based thin film solar cells and modules. The growth of chalcopyrite Cu(In1-xGax)(S1-ySey)2 absorbers, buffers, window layers, antireflection coatings, and finally metallic grids, which are the sole components of solar cells, is clearly illustrated. The absorber, which contains multiple elements, segregates secondary phases if the growth conditions are not well optimized i.e., the main drawback in the fabrication of solar cells. More importantly the solutions for the growth of thin films are given in detail. The properties of all the individual layers and single crystals including solar cells analyzed by different characterization techniques such as SEM, AFM, XPS, AES, TEM, XRD, optical, photoluminescence, and Raman spectroscopy are explicitly demonstrated. The electrical analyses such as conductivities, Hall mobilities, deep level transient spectroscopy measurements etc., provide a broad picture to understand thin films or single crystals and their solar cells. The book clearly explains the working principle of energy conversion from solar to electrical with basic sciences for the chalcopyrite based thin film solar cells. Also, it demonstrates important criteria on how to enhance efficiency of the solar cells and modules. The effect of environmental factors such as temperature, humidity, aging etc., on the devices is mentioned by citing several examples. Illustrates a number of growth techniques to prepare thin film layers for solar cells Discusses characterization techniques such as XRD, TEM, XPS, AFM, SEM, PL, CL, Optical measurements, and Electrical measurements Includes I-V, C-V measurements illustrations Provides analysis of solar cell efficiency Presents current trends in thin film solar cells research and marketing
Author : Alagappan Subramanian Alagappan
Publisher :
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.:/5 (559 download)
Download or read book Semiconductor Device Modeling of CIGS Thin Film Solar Cells Using AMPGS-1D Modeling and Simulation Tool written by Alagappan Subramanian Alagappan and published by . This book was released on 2004 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tian Xie
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (112 download)
Download or read book Electrical Characterization of CIGS Solar Cells written by Tian Xie and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Cu(In,Ga)Se2-based thin-film solar cells are one of the most promising photovoltaic technologies nowadays. Despite significant improvements to the performance of Cu(In,Ga)Se2 (CIGS) in recent decades, the electrical characteristics of CIGS solar cells still have not been completely understood, especially the origins and the properties of metastabilities. This project focuses on the electrical characterization of CIGS based thin film devices with different Cu contents. Different characterization techniques have been used in this project. With varying Cu content, the structural properties, basic parameters, space charge distribution, temperature dependent properties, reverse bias- and white light illumination- induced metastable effects and breakdown behaviors have been investigated.
Author : Eigo Takahashi
Publisher :
ISBN 13 :
Total Pages : 111 pages
Book Rating : 4.:/5 (922 download)
Download or read book Correlation Between Preparation Parameters and Properties of Molybdenum Back Contact Layer for CIGS Thin Film Solar Cells written by Eigo Takahashi and published by . This book was released on 2010 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sputter-deposited Mo thin films are commonly employed as a back contact layer for CIGS and CuInSe2 (CIS)-based solar cells; however, there are several difficulties in fabricating a qualified back contact layer. Generally, Mo thin films deposited at higher sputtering power and lower working gas pressure tend to exhibit lower resistivity; however, such films have a poor adhesion to the glass substrate. On the other hand, films deposited at lower power and higher gas pressure tend to have a higher resistivity, whereas the films exhibit an excellent adhesion to the glass substrate. Therefore, it has been a practice to employ multi-layered Mo thin film back contact layers to achieve the properties of good adhesion to the glass substrate and low resistivity simultaneously. However, multi layer processes have a lower throughput and higher fabricating cost, and requires more elaborated equipment compared to single layer processes, which are not desirable from the industrial point of view. As can be seen, above mentioned process parameters and the corresponding Mo thin film properties are at the two extreme ends of the spectrum. Hence experiments were conducted to find out the mechanisms which influence the properties of Mo thin films by changing the two process parameters of working gas pressure and sputtering power individually. The relationships between process parameters and above mentioned properties were studied and explained. It was found that by selecting the process parameters properly, less resistive, appropriate-surfaced, and highly adhesive single layer Mo thin films for CIGS solar cells can be achieved.
Author : 陳俊宇
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (822 download)
Download or read book Defect Related Effects of CIGS and Α-Si Based Thin Film Solar Cell written by 陳俊宇 and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)
Download or read book Physics-Based Compact Model for CIGS and CdTe Solar Cells: From Voltage-Dependent Carrier Collection to Light-Enhanced Reverse Breakdown: Preprint written by and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper, we develop a physics-based compact model for copper indium gallium diselenide (CIGS) and cadmium telluride (CdTe) heterojunction solar cells that attributes the failure of superposition to voltage-dependent carrier collection in the absorber layer, and interprets light-enhanced reverse breakdown as a consequence of tunneling-assisted Poole-Frenkel conduction. The temperature dependence of the model is validated against both simulation and experimental data for the entire range of bias conditions. The model can be used to characterize device parameters, optimize new designs, and most importantly, predict performance and reliability of solar panels including the effects of self-heating and reverse breakdown due to partial-shading degradation.
Author : Shirish A. Pethe
Publisher :
ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.:/5 (896 download)
Download or read book Optimization of Process Parameters for Reduced Thickness CIGSeS Thin Film Solar Cells written by Shirish A. Pethe and published by . This book was released on 2010 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: With further optimization of the reaction process of the absorber layer as well as the other layers higher efficiencies can be achieved. The effect of sodium on the device performance is experimentally verified in this work. To the best of our knowledge the detrimental effect of excess sodium has been verified by experimental data and effort has been made to correlate the variation in PV parameter to theoretical models of effect of sodium. It has been a regular practice to deposit thin barrier layer prior to molybdenum deposition to reduce the micrononuniformities caused due to nonuniform out diffusion of sodium from the soda lime glass. However, it was proven in this work that an optimally thick barrier layer is necessary to reduce the out diffusion of sodium to negligible quantities and thus reduce the micrononuniformities. Molybdenum back contact deposition is a bottleneck in high volume manufacturing due to the current state of art where multi layer molybdenum film needs to be deposited to achieve the required properties. In order to understand and solve this problem experiments were carried out. The effect of working distance (distance between the target and the substrate) on film properties was studied and is presented in this work. During the course of this work efforts were taken to carry out a systematic and detailed study of some of the fundamental issues related to CIGS technology and particular for high volume manufacturing of CIGS PV modules and lay a good foundation for further improvement of PV performance of CIGS thin film solar cells prepared by the two step process of selenization and sulfurization of sputtered metallic precursors.
Author :
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (165 download)
Download or read book Relation deß Zwischen Den Chur-Bayrischen dann den Kays. vnnd Fränckischen Crayß-Trouppen zu Emhoffen an der Vilß vnweit Schmidtmühl in dem Pfaltz-Neuburgischen vorgangnen Rencontre written by and published by . This book was released on 1703 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
