PVP辅助制备NiO薄膜及其钙钛矿太阳电池性能  

PVP-assisted preparation of NiO thin films and performance of its perovskite solar cells

作　　者：周浩 罗玉峰[1,2] 李鸣[1] 肖宗湖[2] 徐顺建[2] ZHOU Hao;LUO Yu-feng;LI Ming;XIAO Zong-hu;XU Shun-jian(School of Mechanical and Electrical Engineering, Nanchang University, Nanchang Jiangxi 330031, China;Institute of New Energy, Xinyu University, Xinyu Jiangxi 338004, China)

机构地区：[1]南昌大学机电学院,江西南昌330031 [2]新余学院新余新能源研究所,江西新余338004

出　　处：《电源技术》2017年第12期1723-1726,共4页Chinese Journal of Power Sources

基　　金：国家自然科学基金(51462035;51164033);江西省高等学校科技落地计划项目(KJLD13099);江西省技术创新引导类科技计划专利产业化专项(20161BBM26039)

摘　　要：采用NiO薄膜作为空穴传输层,PCBM作为电子传输层,制备了电池结构为ITO/NiO/CH3NH3Pb I3/PCBM/Ag的钙钛矿太阳电池。研究了聚乙烯吡咯烷酮(PVP)含量对NiO薄膜的结构、形貌、光学性能的影响,进而考察了其对NiO基钙钛矿太阳电池性能的影响。研究表明:添加PVP一方面会导致NiO薄膜的形貌起伏,另一方面会使薄膜的透光率下降,这两个因素分别对电池性能起到正反两方面的作用。比较而言,NiO薄膜结构起伏可以有效增加钙钛矿薄膜的覆盖率和成膜质量,对提高电池整体性能的影响较大。当PVP含量为1.0%(原子分数)时,电池性能最优,开路电压和短路电流分别提高了14%和77%,使得转换效率提高了108%,达到3.61%。The perovskite solar cells were successfully prepared with the cell structure of ITO/NiO/CH3NH3PbI3/PCBM/Ag using NiO thin film as the hole transporting layer and PCBM as the electron transporting layer.The influence of PVP content on the structure,morphology and optical properties of NiO thin films was studied,and the performance of NiO-based perovskite solar cells was further investigated.The results show that on the one hand,the addition of PVP can lead to the morphology fluctuation of NiO thin films,on the other hand will cause the transmittance of the films decrease.These two factors play both positive and negative effects on the performance of perovskite solar cells.In comparison,the structure fluctuation of NiO thin films can effectively increase the coverage rate of perovskite thin films and improve the films quality,which has great influence on the overall performance of perovskite solar cells.When the PVP content is1.0%,the perovskite solar cell has the best performance;the open circuit voltage and short circuit current respectively increase by14%and77%,which makes the conversion efficiency increase by108%,reaching3.61%.

关 键 词：NiO薄膜 空穴传输层 钙钛矿太阳电池 PVP 

分 类 号：TM914.4[电气工程—电力电子与电力传动]