Download or read book Electrical Properties of Polycrystalline Cadmium Telluride written by Paul Joseph Lemaire and published by . This book was released on 1975 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Critical Material and Electrical Properties of Polycrystalline Heterojunction CdS CdTe Solar Cells written by Hugo Chavez and published by . This book was released on 1994 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polycrystalline Thin film Cadmium telluride Solar Cells Fabricated by Electrodeposition Cells Final Subcontract Report March 20 1992 April 27 1995 written by and published by . This book was released on 1995 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this project was to develop improved processes for the fabrication of CdTe/CdS polycrystalline thin film solar cells. The technique we used for the formation of CdTe, electrodeposition, was a non-vacuum, low-cost technique that is attractive for economic, large-scale production. Annealing effects and electrical properties are discussed.
Download or read book Electrical Properties of Cadmium Telluride and Associated Devices written by I. M. Dharmadasa Banda and published by . This book was released on 1980 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization of Electrical Properties of Thin film Solar Cells written by Rasha A. Awni and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photovoltaic (PV) solar cells have attracted great attention because of the demand for low cost renewable energy sources. Detailed information on electronic properties, such as doping, defects, gap states...etc, must be fully understood to develop the technology of solar cells. Here, we report the fundamental electronic properties of two distinct materials systems, one is based on polycrystalline cadmium telluride (CdTe) and the other is lead-halide perovskite solar cells. This investigation provides useful information to understand the fundamental nature of single junction solar cell device and material. First, we investigate the impact of back surface treatment method for cadmium sulfide (CdS)/CdTe solar cells using hydroiodic acid (HI) etching to provide an appropriate electrical back contact. The structural properties of CdTe films and electrical properties of the CdTe absorber and interfaces are characterized. Using capacitance-based techniques with the support of current-voltage measurements, we show that the barrier height of the back contact is reduced, apparent doping concentration is increased, and a defect level at 0.409eV is eliminated after the HI-treatment. More importantly, the CdTe device performance is improved. This improvement is still limited by many factors. One factor is the device window layer that limits the current generation. Therefore, we replaced CdS layer by wide bandgap material, ZnMgO (ZMO). We noticed that the electrical properties of CdS/CdTe and ZMO/CdTe solar cells depend on both buffer material and the fabrication atmosphere. Using capacitance spectroscopy-based techniques, we show that CdS/CdTe solar cells have negligible front contact barriers regardless of the fabrication atmospher, while ZMO/CdTe devices show obvious front barriers are dependent on the fabrication atmosphere. Both CdS/CdTe and ZMO/CdTe solar cells have significant back contact barriers. Additionally, we find that the energy level of defects in CdS/CdTe cells is shallower than in ZMO/CdTe cells. These results provide deep insights for understanding and optimizing the performance of CdTe thin-film solar cells. Then, we explored the electrical properties of halide perovskite solar cells (PSCs) that can be deduced by capacitance-based techniques, such as defect activation energy and density, carrier concentration, and dielectric constant. However, we find that these techniques cannot reliably be used to characterize the properties of the defects in the perovskite layer or at its interface. We find that the high-frequency capacitance signature is due to the response of charge carriers in the hole-transport layer (HTL), not in the perovskite layer. In HTL-free PSCs, from the capacitance spectra at high-frequency, the geometric capacitance can be determined and can be used to calculate the dielectric constant of perovskite layers. We also find an overlapping effect with the charge transport layers at the low-frequency capacitance signature in planner PSCs, thus, it cannot be used to analyze the defect properties. However, in the inverted structure PSCs, the low-frequency capacitance signature can be used to calculate the activation energy of the ionic conductivity of the perovskite layer.
Download or read book Electrical Properties of Cadmium Telluride Thin Film Solar Cells Activated with Magnesium Chloride written by A. Pressman and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation and Electrical Properties of Amorphous Cadmium Telluride written by C.P. Ng and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrical Properties of Polycrystalline CdS Films Produced by Laser driven Physical Vapor Deposition for CdS CdTe Solar Cells written by Li-hua Tsien and published by . This book was released on 1992 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Properties of Narrow Gap Cadmium based Compounds written by Peter Capper and published by IET. This book was released on 1994 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: This highly structured volume contains sections on growth and device aspects of mercury cadmium telluride (MCT).
Download or read book Electronic Properties of Materials written by H. Thayne Johnson and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 1697 pages. Available in PDF, EPUB and Kindle. Book excerpt: HIS FIRST EDITION OF Electronic Properties of Force Materials Laboratory, where Air Force respon T Materials: A Guide to the Literature initiates a sibility for these contracts has resided. Mr. John W. plan for making available the indexing work of the Atwood is Project Manager at Hughes Aircraft Electronic Properties Information Center. Since the Company. inception of EPIC in June, 1961, a basic objective has Professional members of EPIC are Charles L. M. been to use techniques and procedures that would Blocher, Donald L. Grigsby, Dana H. Johnson, allow maximum distribution and use of EPIC output. Thomas J. Lyndon, John T. Milek, Meta S. Neu Accordingly, data processing and reproduction tech berger, and Emil Schafer. All have ably contributed niques were established to reproduce and distribute to this work. Mr. Johnson and Mrs. Neuberger have easily and economically a few copies of what was been primarily responsible for the indexing effort; then a card index. Mr. Lyndon has supervised the classical library pro As the program advanced, it became apparent that cedures and the clerical effort; Mr. Blocher and Mr. a few copies of the index were not enough. The index Grigsby have controlled the indexing vocabulary, the should be available to all, instead of just a select few. cross-references, and the data processing input; and However, this would have meant so many copies that Mr. Schafer has prepared the very excellent glossary, the cost would have drained funds from the program with the assistance of Mr. Milek.
Download or read book Cadmium Telluride Data Sheets written by M. Neuberger and published by . This book was released on 1962 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermodynamic Measurement Techniques written by Mohammad Shamsuddin and published by Springer Nature. This book was released on 2024 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers various techniques for measurement of thermodynamic quantities of materials such as enthalpy, free energy, and entropy. Techniques described herein include calorimetry, chemical equilibria, vapour pressure, and electrochemical analysis. The book covers general and solution thermodynamics in Chapters 1 and 2, respectively, and highlights the significance of various thermodynamic quantities required for materials characterization and development in Chapter 3. The author goes on to discuss different thermodynamic measurement techniques in detail (Chapters 4-8) together with a set of more than fifty worked-out problems related to classical as well as solution thermodynamics and measurement techniques. (Chapter 9). Topics include but are not limited to the following: The significance of various thermodynamic data required for selection and characterization of materials. The physicochemical principles involved in various thermodynamic measurement and on the evaluation of thermodynamic data by phase diagram analyses. The unique combination of calorimetry and chemical equilibrium for simultaneous determination of partial molar enthalpy and partial molar free energy of hydrogen in metals and alloys. The special technique based on the combination of vapor pressure and electrical conductivity to study the effect of tellurium vapor pressure on the mode of conduction in polycrystalline cadmium telluride.
Download or read book Solar Cells and Modules written by Arvind Shah and published by Springer Nature. This book was released on 2020-07-16 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a comprehensive introduction to the field of photovoltaic (PV) solar cells and modules. In thirteen chapters, it addresses a wide range of topics including the spectrum of light received by PV devices, the basic functioning of a solar cell, and the physical factors limiting the efficiency of solar cells. It places particular emphasis on crystalline silicon solar cells and modules, which constitute today more than 90 % of all modules sold worldwide. Describing in great detail both the manufacturing process and resulting module performance, the book also touches on the newest developments in this sector, such as Tunnel Oxide Passivated Contact (TOPCON) and heterojunction modules, while dedicating a major chapter to general questions of module design and fabrication. Overall, it presents the essential theoretical and practical concepts of PV solar cells and modules in an easy-to-understand manner and discusses current challenges facing the global research and development community.
Download or read book Vapor Growth and Electrical Properties of Cadmium Telluride written by Chih-Yuh Yang and published by . This book was released on 1983 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SERI Photovoltaic Advanced Research and Development Bibliography 1982 1985 written by and published by . This book was released on 1986 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrical Properties of Cadmium Telluride Films by Closed spaced Sublimation written by Chongqing Wu and published by . This book was released on 1991 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
