碳对电极CsPbBr_3钙钛矿太阳能电池的制备及其光光、热稳定性研究  

Preparation of Carbon-Based CsPbBr_3 Perovskite Solar Cell and Its Thermostability and Photostability

作　　者：张生 沈黎丽[1,2] 王金敏 杨松旺[2] ZHANG Sheng;SHEN Lili;WANG Jinmin;YANG Songwang(School of Environmental and Materials Engineering,Shanghai Polytechnic University,Shanghai 201209,China;CAS Key Laboratory of Materials for Energy Conversion,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 201899,China)

机构地区：[1]上海第二工业大学环境与材料工程学院,上海201209 [2]中国科学院上海硅酸盐研究所中科院能量转换材料重点实验室,上海201899

出　　处：《上海第二工业大学学报》2018年第2期98-103,共6页Journal of Shanghai Polytechnic University

基　　金：国家自然科学基金(61775131;61376009);上海市自然科学基金(16ZR1441000);上海高校特聘教授(东方学者)岗位计划(2013-70);上海市曙光计划(13SG55);上海市浦江人才计划(13PJ1403300);上海第二工业大学研究生项目基金(EGD16YJ006)资助

摘　　要：采用两步溶液法制备了无机钙钛矿Cs Pb Br3薄膜,通过增加Pb Br2薄膜在Cs Br甲醇溶液中的反应时间来增加钙钛矿薄膜的厚度并改善薄膜的结晶性,从而提高了无机钙钛矿太阳能电池的光电转换效率。当反应时间从30 min提升至90 min时,电池的效率从1.43%上升至2.84%,这得益于光电流密度得到有效提高。所制备的钙钛矿太阳能电池表现出良好的热稳定性和光稳定性。在最大功率点条件下,全光谱太阳光(AM 1.5,100 m W/cm2)持续照射1 h后,其工作性能保持稳定。在100?C条件下持续加热476 h,电池的效率仍保持在初始效率之上。Inorganic CsPbBr_3 perovskite films were prepared by two-step solution deposition process. The thickness and crystallinity of CsPbBr3 perovskite film improved along with the increased immersing time of Pb Br2 film in Cs Br methyl alcohol solution, which helped to boost the efficiency of inorganic perovskite solar cells. The efficiency of inorganic solar cell has improved from 1.43% to2.84% along with the reaction time improved from 30 min to 90 min, which is attributed to the improved photocurrent. The solar cell possesses superior thermostability and photostability. And the output of the device is stable for 1 h while it is exposed to constant full-sun illumination（AM 1.5, 100 mW/cm^2） at its maximum power point. The efficiency keeps upon the original efficiency after being constant heating for 476 h at 100℃.

关 键 词：太阳能电池 无机钙钛矿 两步溶液法 稳定性 

分 类 号：TM914.4[电气工程—电力电子与电力传动]