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U.S. Department of Energy
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Development of ZnO/ZnSe/CuIn{sub 1{minus}x}Ga{sub x}Se{sub 2} thin-film solar cells with band gap of 1.3 to 1.5 eV

Conference ·
OSTI ID:208047
; ;  [1];  [2]
  1. Tokyo Inst. of Tech. (Japan). Dept. of Electrical and Electronic Engineering
  2. Showa Shell Sekiyu, Atsugi, Kanagawa (Japan). Central R and D Lab.

From the standpoint of environmental safety, the establishment of the process to fabricate Cd-free buffer layers is significantly desirable. In this study, ZnSe has been employed as a buffer layer together with a new fabrication method which has been named as an atomic layer deposition (ALD) method in order to deposit ZnSe continuously on polycrystalline CIGS thin-film absorber in the form of an atomic layer epitaxy (ALE) method. The currently best efficiency of polycrystalline CIGS thin-film solar cells with ZnSe buffer layer by the ALD method is 11.6%.

OSTI ID:
208047
Report Number(s):
CONF-941203--; ISBN 0-7803-1459-X
Country of Publication:
United States
Language:
English