柔性锡基钙钛矿太阳能电池的原位构建及其光电性能研究

项目名称： 柔性锡基钙钛矿太阳能电池的原位构建及其光电性能研究

项目编号： No.61504076

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 肖尧明

作者单位： 山西大学

项目金额： 20万元

中文摘要： 具有质量轻、抗冲击、可卷曲、可进行各种形状或表面设计等优点的柔性钙钛矿太阳能电池（简称F-PSC），具有广阔的应用市场和发展前景。F-PSC中光生载流子的产生、分离和传输，是制约其光电性能的关键。本项目拟在柔性钛箔上，制备具有定向传输电子、电阻低和比表面积高等优点的TiO2纳米管或纳米线阵列，采用原位法构建与TiO2具有良好界面接触的锡基钙钛矿材料，并组装成F-PSC。研究原位法制备条件对锡基钙钛矿材料与TiO2界面接触的影响；研究TiO2纳米管/线阵列厚度与锡基钙钛矿材料电子扩散长度的匹配关系；通过改变锡基钙钛矿材料的组成与结构，提高锡基钙钛矿材料电子空穴的分离与传输速率，增强太阳光的利用率；研究光照下F-PSC中光子俘获、电子和空穴的分离与传输等的微观机制。F-PSC器件制备与理论研究相结合，为大面积F-PSC、光电转换与储能集成器件等研究与应用提供扎实的技术基础和充分的理论依据。

中文关键词： 原位法；柔性；锡基钙钛矿；二氧化钛纳米管/线阵列；钙钛矿太阳能电池

英文摘要： The flexible perovskite solar cell (F-PSC) has attracted wide researches due to its light weight, impact-proof, good flexibility and various shapes design of the advantages, which has broad application market and development prospects. The key factors of restricting the photoelectric property of the F-PSC are the generation, separation and transmission of the charge carrier. This project proposes a new method (in situ method) to prepare tin-based perovskites in the titanium dioxide (TiO2) nanotube or nanowire arrays with good contacts and well-filled structures, in which the arrays prepared on the flexible titanium foils have low resistance, high specific surface area, and characteristic of directional transmission electron. And finally assembling the F-PSC. The main contents of this project include: investigating the effect of the in situ preparation conditions on the interface contact between the tin-based perovskites and TiO2 semiconductors; studying the matching relation between the thickness of the TiO2 nanotube/wire arrays and the electron diffusion length of the tin-based perovskites; enhancing the performance of the tin-based perovsite material by changing its composition and structure to increase the rate of electron-hole separation and transmission, and to enhance the light utilization; studying the principle mechanism of the photon capture, charge carrier separation and transmission in the F-PSC. The theoretical research of the F-PSC together with the device preparation to provide abundant fundamental theories and strong technical foundation for the research and application of the large-area F-PSC and the photovoltaic integrated with energy storage device.

英文关键词： in situ method;flexibility;tin-based perovskite;titanium dioxide nanotube/wire array;perovskite solar cell