离子液体电沉积构筑纳米有序直孔/柱状结构CIGS吸收层及其光电转换性能研究

项目名称： 离子液体电沉积构筑纳米有序直孔/柱状结构CIGS吸收层及其光电转换性能研究

项目编号： No.51474080

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 矿业工程

项目作者： 安茂忠

作者单位： 哈尔滨工业大学

项目金额： 80万元

中文摘要： 制约铜铟镓硒（CIGS）薄膜太阳电池实用化的主要因素是其制作成本高、转换效率低、重现性差等，其中CIGS吸收层的制备起着决定性作用。因此，开发一种低成本、连续、稳定地制备高转换效率的CIGS吸收层的新技术具有重要的现实意义。 本项目主要开展离子液体中电沉积构筑纳米有序直孔/柱状结构的CIGS吸收层的工艺、理论与性能研究，在优化电沉积工艺、弄清Cu与In、Ga、Se 共沉积机理的基础上，在经过特殊预处理的基底表面直接形成纳米有序结构的CIGS薄膜，然后用此薄膜组装成太阳电池研究其结构与性能的关系，经模拟与计算提出纳米结构CIGS吸收层提高转换效率的机制。 相对于其他制备方法，电沉积可低成本、连续生产；相对于水溶液，离子液体电沉积更容易得到组成稳定的CIGS吸收层。相对于氧化铝模板法，电沉积方法在基底表面原位生长的纳米结构的CIGS吸收层具有更大的比表面积、更易于接受太阳光的照射。

中文关键词： 电沉积；CIGS；离子液体；转换性能；纳米材料

英文摘要： The bottleneck factors of the application for Cu-In-Ga-Se (CIGS) film solar cell are highmanufacturing cost, low photoelectric conversion efficiency, and poor reproducibility, while the preparation of CIGS absorb layer plays a decisive role. There is an important practical significance to develop a new low-cost, continuous and high steady technology for producing CIGS film with high-photoelectric conversion performance. This project comprises the study of the production process, growing mechanism and property of the vertical-hole/columnar nano ordered CIGS films electrodeposited from ionic liquid electrolytes. Based on the optimized electrodeposition technology and codeposition mechanism cleared of In, Ga Se and Cu, the nano orderly structure CIGS film can be electrodeposited directly on a specially pretreated substrate surface. The performance of the solar cells assembled with above CIGS films, the relationship between the structure and performance will be studied, and theCIGS photoelectric conversion mechanism will be proposed on the basis of computational stimulations and caculations. Compared with the other methods, electrodeposition is a low-cost and continuous production technique. Compared with traditional aqueous solution systems , it is easier to obtain a stable-composition CIGS deposit from ionic liquid electrolytes. Compared with the alumina template method, the nanometer structure CIGS film grown directly on the substrate surface by electrodeposition will have a large specific surface area, which owns higher conversion efficiencies because of getting the sun radiation more easily.

英文关键词： Electrodeposition;CIGS;Ionic Liquid;Photoelectric Conversion Performance;Nano Material