新颖的分子前体溶液法制备高效的铜基薄膜太阳能电池

项目名称： 新颖的分子前体溶液法制备高效的铜基薄膜太阳能电池

项目编号： No.91333108

项目类型： 重大研究计划

立项/批准年度： 2014

项目学科： 一般工业技术

项目作者： 潘道成

作者单位： 中国科学院长春应用化学研究所

项目金额： 91万元

中文摘要： 本项目采用一种新颖的分子前体溶液法制备高效的铜基薄膜太阳能电池。我们发明的分子前体溶液方法以乙醇为溶剂，把各种金属氧化物溶解在二硫化碳和正丁胺的乙醇溶液中，形成空气稳定的均相分子前体溶液，通过旋涂、加热分解、高温硒化等过程，能够制备出多种高质量的铜基半导体吸光层薄膜，包括铜铟镓硒CIGS和铜锌锡硒CZTS等吸光层。接着通过化学水浴法沉积CdS缓冲层、磁控溅射高阻ZnO和ITO等窗口层，完成电池的制备和组装。目前，我们实验室制备的CIGS和CZTS电池转换效率分别为10.1％和6％。本项目的创新点如下： 1. 使用无毒的乙醇为溶剂，绿色、安全且成本低廉； 2. 该方法具有普适性，能够制备多种高质量的铜基半导体吸光层薄膜以及缓冲层薄膜。

中文关键词： 分子前体；溶液法；铜基薄膜太阳能电池；铜铟镓硫硒；铜锌锡硫硒

英文摘要： A novel molecular precursor solution approach is utilized to fabricate highly efficient Cu-based thin film solar cells. Ethanol is used as the solvent, and many types of metal oxides are dissolved in the ethanol solution of carbon disulfide and butylamine, forming air-stable and homogeneous molecular precursor solutions. Many types of high quality Cu-based semiconductor absorbers, including CIGS and CZTS etc., can be made by spin-casting, thermal decomposition, and selenization processes. Subsequently, the solar cell device is finished by utilizing chemical bath CdS, sputtering ZnO, and ITO. Currently, we have achieved 10.1% and 6% efficiencies for CIGS and CZTS solar cells in our lab. The novelties of this project are as follows: 1. ethanol is used as the solvent, which is green, safe, and low-cost; 2. our method is versatile, and many types of high quality Cu-based semiconductor absorbers and buffer layers can be fabricated by this strategy.

英文关键词： Molecular precursors；Solution process；Cu-based solar cells；CIGSSe；CZTSSe