IMPROVED PERFORMANCE OF Cu(In,Ga)Se2-BASED SUBMODULES WITH A STACKED STRUCTURE OF ZnO WINDOW PREPARED BY SPUTTERING

Performance improvement of CIGS-based submodules using a sputtered ZnO:5.7 wt% Ga2O3 (5.7GZO) as window layers is reported. Preheating treatment at 200 C for 15 min is applied to the parts before the deposition of GZO window layers. This contributes to increase the optical transparency (%T) of GZO w...

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Bibliographic Details
Published in:Solar energy materials and solar cells 2003-01, Vol.75 (1-2), p.163-169
Main Authors: Nagoya, Y, Sang, B, Fujiwara, Y, Kushiya, K, Yamase, O
Format: Article
Language:English
Online Access:Get full text
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Summary:Performance improvement of CIGS-based submodules using a sputtered ZnO:5.7 wt% Ga2O3 (5.7GZO) as window layers is reported. Preheating treatment at 200 C for 15 min is applied to the parts before the deposition of GZO window layers. This contributes to increase the optical transparency (%T) of GZO window considering the %T of about +5% and to improve the Jsc of about +4 mA/cm2. Deposition of a high-resistivity, intrinsic ZnO (i-ZnO) thin layer on the Zn(O,S,OH)x buffer layer before 5.7GZO window deposition contributes to improve the properties of pn heterojunction quality and increase the optical transparency. 4 refs.
ISSN:0927-0248
DOI:10.1016/S0927-0248(02)00141-1