Polycrystalline Thin Film Photovoltaics: Research, Development, and Technologies: Preprint

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II-VI binary thin-film solar cells based on cadmium telluride (CdTe) and I-III-VI ternary thin-film solar cells based on copper indium diselenide (CIS) and related materials have been the subject of intense research and development in the past few years. Substantial progress has been made thus far in the area of materials research, device fabrication, and technology development, and numerous applications based on CdTe and CIS have been deployed worldwide. World record efficiency of 16.5% has been achieved by NREL scientists for a thin-film CdTe solar cell using a modified device structure. Also, NREL scientists achieved world-record efficiency of 21.1% for … continued below

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Ullal, H. S.; Zweibel, K. & von Roedern, B. May 1, 2002.

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II-VI binary thin-film solar cells based on cadmium telluride (CdTe) and I-III-VI ternary thin-film solar cells based on copper indium diselenide (CIS) and related materials have been the subject of intense research and development in the past few years. Substantial progress has been made thus far in the area of materials research, device fabrication, and technology development, and numerous applications based on CdTe and CIS have been deployed worldwide. World record efficiency of 16.5% has been achieved by NREL scientists for a thin-film CdTe solar cell using a modified device structure. Also, NREL scientists achieved world-record efficiency of 21.1% for a thin-film CIGS solar cell under a 14X concentration and AM1.5 global spectrum. When measured under a AM1.5 direct spectrum, the efficiency increases to 21.5%. Pathways for achieving 25% efficiency for tandem polycrystalline thin-film solar cells are elucidated. R&D issues relating to CdTe and CIS are reported in this paper, such as contact stability and accelerated life testing in CdTe, and effects of moisture ingress in thin-film CIS devices. Substantial technology development is currently under way, with various groups reporting power module efficiencies in the range of 7.0% to 12.1% and power output of 40.0 to 92.5 W. A number of lessons learned during the scale-up activities of the technology development for fabrication of thin-film power modules are discussed. The major global players actively involved in the technology development and commercialization efforts using both rigid and flexible power modules are highlighted.

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  • Conference title not supplied, Conference location not supplied, Conference dates not supplied; Other Information: PBD: 1 May 2002

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  • Report No.: NREL/CP-520-32187
  • Grant Number: AC36-99-GO10337
  • Office of Scientific & Technical Information Report Number: 15007048
  • Archival Resource Key: ark:/67531/metadc1412010

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  • May 1, 2002

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  • Jan. 23, 2019, 12:54 p.m.

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  • Feb. 1, 2019, 2:37 p.m.

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Ullal, H. S.; Zweibel, K. & von Roedern, B. Polycrystalline Thin Film Photovoltaics: Research, Development, and Technologies: Preprint, article, May 1, 2002; Golden, Colorado. (https://digital.library.unt.edu/ark:/67531/metadc1412010/: accessed May 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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