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Book Development of a Computer Model for Polycrystalline Thin film CuInSe sub 2 and CdTe Solar Cells Annual Subcontract Report 1 March 1992 28 February 1993

Download or read book Development of a Computer Model for Polycrystalline Thin film CuInSe sub 2 and CdTe Solar Cells Annual Subcontract Report 1 March 1992 28 February 1993 written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Solar cells operate by converting the radiation power from sun light into electrical power through photon absorption by semiconductor materials. The elemental and compound material systems widely used in photovoltaic applications can be produced in a variety of crystalline and non-crystalline forms. Although the crystalline group of materials have exhibited high conversion efficiencies, their production cost are substantially high. Several candidates in the poly- and micro-crystalline family of materials have recently gained much attention due to their potential for low cost manufacturability, stability, reliability and good performance. Among those materials, CuInSe[sub 2] and CdTe are considered to be the best choices for production of thin film solar cells because of the good optical properties and almost ideal band gap energies. Considerable progress was made with respect to cell performance and low cost manufacturing processes. Recently conversion efficiencies of 14.1 and 14.6% have been reported for CuInSe[sub 2] and CdTe based solar cells respectively. Even though the efficiencies of these cells continue to improve, they are not fully understood materials and there lies an uncertainty in their electrical properties and possible attainable performances. The best way to understand the details of current transport mechanisms and recombinations is to model the solar cells numerically. By numerical modeling, the processes which limit the cell performance can be sought and therefore, the most desirable designs for solar cells utilizing these materials as absorbers can be predicted. The problems with numerically modeling CuInSe[sub 2] and CdTe solar cells are that reported values of the pertinent material parameters vary over a wide range, and some quantities such as carrier concentration are not explicitly controlled.

Book Development of a Computer Model for Polycrystalline Thin film CuInSe2 and CdTe Solar Cells Annual Subcontract Report 1 March 1992 28 February 1993

Download or read book Development of a Computer Model for Polycrystalline Thin film CuInSe2 and CdTe Solar Cells Annual Subcontract Report 1 March 1992 28 February 1993 written by and published by . This book was released on 1994 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solar cells operate by converting the radiation power from sun light into electrical power through photon absorption by semiconductor materials. The elemental and compound material systems widely used in photovoltaic applications can be produced in a variety of crystalline and non-crystalline forms. Although the crystalline group of materials have exhibited high conversion efficiencies, their production cost are substantially high. Several candidates in the poly- and micro-crystalline family of materials have recently gained much attention due to their potential for low cost manufacturability, stability, reliability and good performance. Among those materials, CuInSe2 and CdTe are considered to be the best choices for production of thin film solar cells because of the good optical properties and almost ideal band gap energies. Considerable progress was made with respect to cell performance and low cost manufacturing processes. Recently conversion efficiencies of 14.1 and 14.6% have been reported for CuInSe2 and CdTe based solar cells respectively. Even though the efficiencies of these cells continue to improve, they are not fully understood materials and there lies an uncertainty in their electrical properties and possible attainable performances. The best way to understand the details of current transport mechanisms and recombinations is to model the solar cells numerically. By numerical modeling, the processes which limit the cell performance can be sought and therefore, the most desirable designs for solar cells utilizing these materials as absorbers can be predicted. The problems with numerically modeling CuInSe2 and CdTe solar cells are that reported values of the pertinent material parameters vary over a wide range, and some quantities such as carrier concentration are not explicitly controlled.

Book Energy Research Abstracts

Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-06 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Development of a Computer Model for Polycrystalline Thin film CuInSe Sub 2 and CdTe Solar Cells

Download or read book Development of a Computer Model for Polycrystalline Thin film CuInSe Sub 2 and CdTe Solar Cells written by and published by . This book was released on 1992 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes work to develop a highly accurate numerical model for CuInSe2 and CdTe solar cells. ADEPT (A Device Emulation Program and Toolbox), a one-dimensional semiconductor device simulation code developed at Purdue University, was used as the basis of this model. An additional objective was to use ADEPT to analyze the performance of existing and proposed CuInSe2 and CdTe solar cell structures. The work is being performed in two phases. The first phase involved collecting device performance parameters, cell structure information, and material parameters. This information was used to construct the basic models to simulate CuInSe2 and CdTe solar cells. This report is a tabulation of information gathered during the first phase of this project on the performance of existing CuInSe2 and CdTe solar cells, the material properties of CuInSr2, CdTe, and CdS, and the optical absorption properties of CuInSe2, CdTe, and CdS. The second phase will entail further development and the release of a version of ADEPT tailored to CuInSe2 and CdTe solar cells that can be run on a personal computer. In addition, ADEPT will be used to analyze the performance of existing and proposed CuInSe2 and CdTe solar cell structures. 110 refs.

Book Polycrystalline CuInSe2 and CdTe Solar Cells Annual Subcontract Report April 15 1992 April 14 1993

Download or read book Polycrystalline CuInSe2 and CdTe Solar Cells Annual Subcontract Report April 15 1992 April 14 1993 written by and published by . This book was released on 1994 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: The principal objective of the research project is to develop processes for the fabrication of cadmium-telluride, CdTe, and copper-indium-gallium-diselenide, Cu(In{sub 1-x}Ga(subscript x))Se2, polycrystalline-thin-film solar cells using techniques that can be scaled-up for economic manufacture on a large scale. The aims are to fabricate CdTe solar cells using Cd and Te layers sputtered from elemental targets; to promote the interdiffusion between Cd/Te layers, CdTe phase formation, and grain growth; to utilize non-toxic selenization so as to avoid the use of extremely toxic H2Se in the fabrication of Cu(In{sub l-x}Ga(subscript x))Se2 thin-film solar cells; to optimize selenization parameters; to improve adhesion; to minimize residual stresses; to improve the uniformity, stoichiometry, and morphology of CdTe and Cu(In{sub 1-x}Ga(subscript x))Se2 thin films, and the efficiency of CdTe and Cu(In{sub 1-x}Ga(subscript x))Se2 solar cells.

Book 13th NREL Photovoltaics Program Review

Download or read book 13th NREL Photovoltaics Program Review written by Harin S. Ullal and published by American Institute of Physics. This book was released on 1996 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work represents recent progress in photovoltaics technology including progress made in such areas as amorphous silicon, crystalline silican, cadmium telluride, and so on. Special focus is given to PV applications for rural electrifications.

Book Government Reports Announcements Index

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1995 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Annual Report on the Development of a Computer Model for Polycrystalline Thin film CuInSe2 and CdTe Solar Cells

Download or read book Annual Report on the Development of a Computer Model for Polycrystalline Thin film CuInSe2 and CdTe Solar Cells written by Jeffery L. Gray and published by . This book was released on 1992 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Synerjy

Download or read book Synerjy written by and published by . This book was released on 1991 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Advanced Processing Technology for High efficiency Thin film CuInSe2 and CdTe Solar Cells Annual Subcontract Report 1 March 1993 28 February 1994

Download or read book Advanced Processing Technology for High efficiency Thin film CuInSe2 and CdTe Solar Cells Annual Subcontract Report 1 March 1993 28 February 1994 written by and published by . This book was released on 1994 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: This annual report details activities in research on advanced processing technology for high-effiency, thin-film solar cells.

Book Polycrystalline CuInSe2 and CdTe Solar Cells

Download or read book Polycrystalline CuInSe2 and CdTe Solar Cells written by Neelkanth G. Dhere and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: