一步溶液法制备FA0.95Cs0.05PbI(3-x)Clx钙钛矿太阳电池  

Fabrication of FA_(0.95)Cs_(0.05)PbI_(3-x)Cl_x perovskite solar cells using a single-step solution process

作　　者：魏清渤[1,2] 乔雨佳 周盼 窦生艳 WEI Qingbo;QIAO Yujia;ZHOU Pan;DOU Shengyan(Key Laboratory of Chemical Reaction Engineering of Shaanxi Province, College of Chemistry&Chemical Engineering,Yan’an University,Yan’an 716000,China;Shaanxi Engineering Laboratory for Advanced Energy Technology,School of Materials Science and Engineering, Shanxi Normal University,Xi’an 710062,China)

机构地区：[1]延安大学化学与化工学院,陕西省化学反应工程重点实验室,陕西延安716000 [2]陕西师范大学材料科学与工程学院,陕西省新能源新工程实验室,西安710062

出　　处：《功能材料》2018年第9期9027-9030,9037,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(61604090,21663030,21766039);陕西省教育厅基金资助项目(15JS120);延安大学博士科研启动基金资助项目(YDBK2017-14);延安大学大学生创新创业训练计划资助项目(D2017017)。

摘　　要：采用一步法制备了FA_(0.95)Cs_(0.05)PbI_(3-x)Cl_x钙钛矿薄膜,研究了CsI对钙钛矿薄膜形貌、光学性质及电池性能的影响。研究结果表明,与FAPbI(3-x)Clx体系相比较,当掺杂少量CsI时,FA_(0.95)Cs_(0.05)PbI_(3-x)Cl_x钙钛矿层薄膜晶粒尺寸明显增大且紧密堆积;在300~810nm范围内,紫外-可见吸收光谱吸收明显增强;通过构筑FA_(0.95)Cs_(0.05)PbI_(3-x)Cl_x电池器件的开路电压Voc=0.88V,光电转换效率PCE=5.86%。One-step solution approach to prepare FA 0.95 Cs 0.05 PbI(3-x)Cl x perovskite solar cells was demonstrated.The influence of CsI additive on the morphology,optical absorption and photovoltaic performances was investigated.The results show that compared with FAPbI(3-x)Cl x films,grain sizes of FA 0.95 Cs 0.05 PbI(3-x)Cl x perovskite with CsI additive were larger and compact stacking.FA 0.95 Cs 0.05 PbI(3-x)Cl x perovskite film showed stronger UV-Vis absorption in the range of 300 to 810 nm.The FA 0.95 Cs 0.05 PbI(3-x)Cl x solar cells exhibited open circuit voltage of 0.88 V with power conversion efficiency of 5.84%.

关 键 词：有机/无机杂化 钙钛矿 形貌 电池 

分 类 号：O472[理学—半导体物理]