Nearly carbon-free printable CIGS thin films for solar cell applications

Title
Nearly carbon-free printable CIGS thin films for solar cell applications
Authors
이은주박세진조진우곽지혜오민규민병권
Keywords
CIGS; printable; solution process; solar cells; Carbon; CuInxGa1-xSeyS2-y
Issue Date
2011-10
Publisher
Solar energy materials and solar cells
Citation
VOL 95, NO 10, 2928-2932
Abstract
In order to fabricate low cost and printable CuInxGa1−xSeyS2−y (CIGS) thin film solar cells, a precursor solution based method was developed. Particularly, in this method, nearly carbon-free CIGS film was obtained by applying a three-step heat treatment process: the first for the elimination of carbon residue by air annealing, the second for the formation of CIGS alloy by sulfurization, and the third for grain growth and densification in the CIGS film by selenization. The film also revealed very large grains with a low degree of porosity, similar to those produced by the vacuum based method. A solar cell device with this film showed current–voltage characteristics of Jsc=21.02 mA/㎠, Voc=451 mV, FF=47.3%, and η=4.48% at standard conditions.
URI
http://pubs.kist.re.kr/handle/201004/40281
ISSN
0927-0248
Appears in Collections:
KIST Publication > Article
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