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Proceedings Paper

Second phases in CdS/CuInSe2 solar cells
Author(s): Elizabeth Burck Varner; Clayton W. Bates
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Paper Abstract

Though second phases consisting of Cu2-xSe or In2O3 are known to occur in CuInSe2 deposited by various methods and on a variety of substrates, establishing whether these second phases are present in CdS/CuInSe2 heterojunction solar cells has been complicated by the additional material layers in the solar cells. Hence the effect of second phases on the electrical properties and device performance has not been specified in detail in previous studies of this structure. In this paper the authors investigate the use of x-ray diffraction to determine whether second phases are present in CdS/CuInSe2 solar cells prepared by chemical spray pyrolysis. On phase in the CuInSe2 of the solar cells. An attempt to remove Cu2-xSe by chemically selective etches failed, perhaps because the diffraction peak attributed to Cu2-xSe actually had a different cause. Future studies will attempt to determine this cause. If a second phase is the cause, both removing it or preventing its formation will be studied in an effort to determine its effect on solar cell efficiency.

Paper Details

Date Published: 9 December 1992
PDF: 11 pages
Proc. SPIE 1729, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XI: Photovoltaics, Photochemistry, Photoelectrochemistry, (9 December 1992); doi: 10.1117/12.130562
Show Author Affiliations
Elizabeth Burck Varner, Stanford Univ. (United States)
Clayton W. Bates, Stanford Univ. (United States)


Published in SPIE Proceedings Vol. 1729:
Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XI: Photovoltaics, Photochemistry, Photoelectrochemistry

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