Preparation of I-III-VI Compound Solar Cells Using Non-Vacuum Technology

Solar energy related technology has become more and more important in recent years. Major applications include solar cells and solar-thermal technology. The utilization of solar energy into electrical power will be the ultimate goal for a future clean energy society. 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 thin film copper-indium-gallium-selenium (CIGS) solar cells and the integrations of tandem-cell structure for solar energy applications. The highest conversion efficiency of thin film CIGS solar cells based on physical vapor deposition technology is around 20%. However, the larger area coating technology and the cost of CIGS materials remain challenges. Moreover, materials developments and preparations, low-cost for large area coating technology and composition of CIGS layer for solar cells have to be taken into consideration. Therefore, we propose this project in order to develop low cost copper-indium-disulfide and copper-indium-gallium disulfide solar cell module using non-vacuum technology. The subjects of this project are the synthesis of copper-indium-disulfide, copper-indium-gallium disulfide and indium sulfide nano-powders, the preparation of coating solutions, and the development of large area copper-indium-disulfide and copper-indium-gallium disulfide solar cells. We will start from the preparation of various conduction type of copper-indium-disulfide, copper-indium-gallium disulfide and indium sulfide powders and the measurements of structure and properties for these samples. Finally, the effects of structural, compositions and electrical properties of samples on the conversion efficiency will be realized. This project is consisted of fundamental investigations of materials synthesis, theoretical analysis, and design of the solar cell modulus. We believe that our approach can be the cornerstone of developing high efficiency thin film solar cells for solar energy applications.

Project ID:PB10007-7262
External Project ID:NSC100-2628-E182-005-MY3