Investigation of the Microstructure of Cu(In,Ga)Se2 Thin Films Used in High-Efficiency Devices [electronic resource] : Preprint.
This conference paper describes the microstructure of Cu(In,Ga)Se2 (CIGS) films, as it transitioned from Cu-rich to In-rich composition, by transmission electron microscopy, and energy-dispersive X-ray spectroscopy. We find that the Cu-rich samples have larger grains than the In-rich samples, and th...
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| Online Access: |
Online Access (via OSTI) |
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| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2002.
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| Subjects: |
| Summary: | This conference paper describes the microstructure of Cu(In,Ga)Se2 (CIGS) films, as it transitioned from Cu-rich to In-rich composition, by transmission electron microscopy, and energy-dispersive X-ray spectroscopy. We find that the Cu-rich samples have larger grains than the In-rich samples, and they contain two structurally different forms of the CuxSe secondary phase. These samples also show sub-interfaces about 0.2 ..mu..m below the surface. The In-rich samples were almost void of these sub-interfaces. Pv; Transmission Electron Microscopy; Energy-Dispersive X-Ray Spectroscopy; High-Efficiency Devices; Short-Circuit Current; Cigs Absorber; Scanning Electron Microscopy; Selected-Area Electron Diffraction (Sad); Three-Stage Process; Solar Energy - Photovoltaics. |
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| Item Description: | Published through SciTech Connect. 05/01/2002. "nrel/cp-520-31430" Presented at the 29th IEEE PV Specialists Conference, New Orleans, LA (US), 05/20/2002--05/24/2002. Noufi, R.; Yan, Y.; Abu-Shama, J.; Jones, K.; Al-Jassim, M.; Keyes, B.; Alleman, J.; Ramanathan, K. National Renewable Energy Lab., Golden, CO. (US) |
| Physical Description: | 6 pages : digital, PDF file. |