단일 복합 타겟으로 스퍼터 코팅된 CIGS 박막의 형성과 열처리에 따른 미세구조 변화
The Formation of CIGS Thin Films by Sputter Coating Using Single Composite Target and Change of Microstructure with Heat Treatment
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Thin film solar cells have attracted much attention due to their high cell efficiency, comparatively low process cost, and applicability to flexible substrates. In particular, CIGS solar cells have been widely studied and produced because they demonstrated the highest cell efficiency. However, the deposition process of CIGS films generally includes the selenization process conducted at elevated temperature using toxic H2Se gas. To avoid this selenization process, CIGS thin films were, in this study, deposited by RF sputtering using single composite CIGS target. In addition, the effects of sputtering bias voltage and heat treatment on the microstructural and morphological changes in deposited CIGS films were investigated and discussed.
Abstract
Thin film solar cells have attracted much attention due to their high cell efficiency, comparatively low process cost, and applicability to flexible substrates. In particular, CIGS solar cells have been widely studied and produced because they demonstrated the highest cell efficiency. However, the deposition process of CIGS films generally includes the selenization process conducted at elevated temperature using toxic H2Se gas. To avoid this selenization process, CIGS thin films were, in this study, deposited by RF sputtering using single composite CIGS target. In addition, the effects of sputtering bias voltage and heat treatment on the microstructural and morphological changes in deposited CIGS films were investigated and discussed.
참고문헌 (12)
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