Crystal Morphologies of Organolead Trihalide in Mesoscopic/Planar Perovskite Solar Cells | |
Zhou, Yuanyuan1; Vasiliev, Alexander L.1; Wu, Wenwen1; Yang, Mengjin2; Pang, Shuping3; Zhu, Kai2; Padture, Nitin P.1 | |
2015-06-18 | |
发表期刊 | JOURNAL OF PHYSICAL CHEMISTRY LETTERS |
卷号 | 6期号:12页码:2292-2297 |
摘要 | The crystal morphology of organolead trihalide perovskite (OTP) light absorbers can have profound influence on the perovskite solar cells (PSCs) performance. Here we have used a combination of conventional transmission electron microscopy (TEM) and high-resolution TEM (HRTEM), in cross-section and plan-view, to characterize the morphologies of a solution-processed OTP (CH3NH3PbI3 or MAPbI(3)) within mesoporous TiO2 scaffolds and within capping and planar layers. Studies of TEM specimens prepared with and without the use of focused ion beam (FIB) show that FIBing is a viable method for preparing TEM specimens. HRTEM studies, in conjunction with quantitative X-ray diffraction, show that MAPbI(3) perovskite within mesoporous TiO2 scaffold has equiaxed grains of size 10-20 nm and relatively low crystallinity. In contrast, the grain size of MAPbI(3) perovskite in the capping and the planar layers can be larger than 100 nm in our PSCs, and the grains can be elongated and textured, with relatively high crystallinity. The observed differences in the performance of planar and mesoscopic-planar hybrid PSCs can be attributed in part to the striking differences in their perovskite-grain morphologies. |
文章类型 | Article |
WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
DOI | 10.1021/acs.jpclett.5b00981 |
关键词[WOS] | HIGH-PERFORMANCE ; DEVICE PERFORMANCE ; THIN-FILMS ; CRYSTALLIZATION ; HYSTERESIS ; EMERGENCE ; LIGHT ; LAYER |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
WOS类目 | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Atomic, Molecular & Chemical |
WOS记录号 | WOS:000356758100024 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qibebt.ac.cn/handle/337004/3988 |
专题 | 仿生与固态能源系统研究组 |
作者单位 | 1.Brown Univ, Sch Engn, Providence, RI 02912 USA 2.Natl Renewable Energy Lab, Chem & Mat Sci Ctr, Golden, CO 80401 USA 3.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China |
推荐引用方式 GB/T 7714 | Zhou, Yuanyuan,Vasiliev, Alexander L.,Wu, Wenwen,et al. Crystal Morphologies of Organolead Trihalide in Mesoscopic/Planar Perovskite Solar Cells[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2015,6(12):2292-2297. |
APA | Zhou, Yuanyuan.,Vasiliev, Alexander L..,Wu, Wenwen.,Yang, Mengjin.,Pang, Shuping.,...&Padture, Nitin P..(2015).Crystal Morphologies of Organolead Trihalide in Mesoscopic/Planar Perovskite Solar Cells.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,6(12),2292-2297. |
MLA | Zhou, Yuanyuan,et al."Crystal Morphologies of Organolead Trihalide in Mesoscopic/Planar Perovskite Solar Cells".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 6.12(2015):2292-2297. |
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