Formation chemistry of polycrystalline Cu(InGa)Se{sub 2} thin-film absorbers prepared by selenization of Cu-Ga/In stacked precursor layers with H{sub 2}Se gas

Book · Tue Dec 31 00:00:00 EST 1996

OSTI ID:417673

Kushiya, K; Kuriyagawa, S; Kase, T; Sugiyama, I; Tachiyuki, M; Takeshita, H ^[1]

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1. Showa Shell Sekiyu K.K., Atsugi, Kanagawa (Japan). Central R and D Lab.

The purpose of this study is to improve the reliability and reproducibility of the fabrication process for polycrystalline Cu(InGa)Se{sub 2} (CIGS) thin-film absorbers and to make a better absorber with higher efficiency. The current baseline process of selenization has been evaluated through the investigation of the formation chemistry of the device-quality CIGS thin-film absorbers with a graded band-gap structure. It has been verified that the current selenization process has been performed in a good balancing point with both Cu/III ratio and thickness of the precursor layer and the total amount of Se through H{sub 2}Se gas incorporated from the surface during the selenization. A simplified model to explain the formation chemistry of the selenization in this study has been proposed.

• OSTI ID: 417673
• Report Number(s): CONF-960401-; ISBN 1-55899-329-0; TRN: IM9705%%46
• Resource Relation: Conference: Spring meeting of the Materials Research Society (MRS), San Francisco, CA (United States), 8-12 Apr 1996; Other Information: PBD: 1996; Related Information: Is Part Of Thin films for photovoltaic and related device applications; Ginley, D. [ed.] [National Renewable Energy Lab., Golden, CO (United States)]; Catalano, A. [ed.] [Technology Assessment Group, Boulder, CO (United States)]; Schock, H.W. [ed.] [Univ. Stuttgart (Germany)]; Eberspacher, C. [ed.] [Unisun, Newbury Park, CA (United States)]; Peterson, T.M. [ed.] [Electric Power Research Inst., Palo Alto, CA (United States)]; Wada, Takahiro [ed.] [Matsushita Electric Industries Co., Ltd., Kyoto (Japan)]; PB: 621 p.; Materials Research Society symposium proceedings, Volume 426
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
14 SOLAR ENERGY
SEMICONDUCTOR MATERIALS
FABRICATION
MICROSTRUCTURE
COPPER SELENIDES
INDIUM SELENIDES
GALLIUM SELENIDES
CADMIUM SULFIDES
ZINC OXIDES
MOLYBDENUM
SOLAR CELLS
PERFORMANCE
ALUMINIUM ADDITIONS
SELENIUM HYDRIDES
SUBSTRATES
GLASS
EMISSION SPECTROSCOPY
X-RAY SPECTROSCOPY
AUGER ELECTRON SPECTROSCOPY
X-RAY DIFFRACTION
SCANNING ELECTRON MICROSCOPY
ELECTRIC POTENTIAL
CURRENT DENSITY
FILL FACTORS
EFFICIENCY
EXPERIMENTAL DATA