太陽能源之應用為近年來極為重要之研究發展領域，主要應用範圍為各類光電池與熱能，利用光能產生低成本之電力，將為未來潔淨能源供應之最終目標。目前以真空方法所製備之 CIGS 薄膜太陽電池具有較高光電轉換效率，其效率可達 20.3%，但大面積製備與價格成本仍需突破。本文將以 CIGS 薄膜太陽電池與多層薄膜結構元件進行為主要探討方向，針對 CIS 薄膜太陽電池之材料特性、真空／非真空製程技術以及材料應用特性依序作詳細介紹。

Solar energy related technology has become more and more important in recent years. Major applications include solar cells and solar-thermal technology. Especially, the utilization of solar energy into electrical power will be the ultimate goal for a clean energy society. The highest conversion efficiency of thin film CIGS solar cells based on physical vapor deposition technology is around 20.3%. The advances of low cost and high-efficiency thin film solar cells make this vision become possible. Current research directions focus on the development of CIGS thinfilm solar cells and the integrations of tandem-cell structure for solar energy applications. In this article, we give an introduction to CIS thin-film solar cells for their material properties, vacuum/non-vacuun production technologies, and material applications.