电泳沉积法制备绿色量子点敏化及共敏化太阳能电池研究

项目名称： 电泳沉积法制备绿色量子点敏化及共敏化太阳能电池研究

项目编号： No.21301055

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 数理科学和化学

项目作者： 舒婷

作者单位： 湖北科技学院

项目金额： 24万元

中文摘要： 量子点敏化太阳能电池（QDSSC）因其低成本和高理论转化效率的优点而在新能源领域具有重要意义。由于目前QDSSC中的量子点绝大多数都含对环境有害的元素，因此开发绿色环保的QDSSC十分必要；同时目前广泛采用的量子点敏化电极制备方法均存在一定缺陷，限制了QDSSC效率的进一步提高。因此，本项目选择"绿色"CuInS2量子点，采用电泳沉积法制备可控的CuInS2量子点敏化电极，再将绿色Ag2S量子点与CuInS2进行共敏化，制备Ag2S-CuInS2量子点共敏化电极，研究CuInS2量子点的尺寸与结构对QDSSC性能的影响，研究Ag2S-CuInS2共敏化对QDSSC性能的影响，通过对量子点、电泳沉积、共敏化以及电池材料和制备工艺的优化，提高QDSSC的转化效率。利用多种分析和测试手段，研究CuInS2和Ag2S-CuInS2 QDSSC的内部作用机理，为提高绿色QDSSC的效率提供理论依据。

中文关键词： 绿色化学；CuInS2；电泳沉积；量子点敏化太阳能电池；共敏化

英文摘要： Quantum dot sensitized solar cells ( QDSSC ) have important significance in new energy resource area duo to the advantages of low cost and high theoretically energy conversion efficiency. As the vast majority of quantum dots used in QDSSC are harmful to the environment.So,the development of green and environmental friendly QDSSC is necessary. Due to the widely used preparation methods of quantum dot sensitized electrode have the defect which limit the efficiency of QDSSC. Therefore, we choose "green" CuInS2 quantum dot , prepare the controllable CuInS2 quantum dot sensitized electrodes by electrophoretic deposition. Then,use green Ag2S quantum dot and CuInS2 quantum dot to prepare the Ag2S-CuInS2 quantum dot cosensitized electrodes.We will study the influence of quantum dot size and structure to the performance of QDSSC,and investigate the influence of cosensitization action of Ag2S-CuInS2 to the performance of QDSSC.The conversion efficiency of QDSSC will be improved by optimization of quantum dot, electrophoretic deposition,cosensitization and solar cell materials and preparation process. Most important, through a variety of testing and analysis techniques, research the internal action mechanism of CuInS2 QDSSC and Ag2S-CuInS2 QDSSC which will provide the theoretical basis for the efficiency improvement o

英文关键词： green chemistry；CuInS2；electrophoretic deposition；quantum dot sensitized solar cell；cosensitization