CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Water assisted formation of highly oriented CsPbI2Br perovskite films with the solar cell efficiency exceeding 16%
Lin, ZQ; Qiao, HW; Zhou, ZR; Hou, Y; Li, XL; Yang, HG; Yang, S
2020
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume8Issue:34Pages:17670-17674
Subtype期刊论文
AbstractCesium lead halide perovskites are promising alternatives as light-absorbing materials for achieving perovskite solar cells with excellent thermal stability, but their inferior power conversion efficiency (PCE) and ambient instability are impeding their application. In this work, we show that liquid water can assist the formation of CsPbI2Br perovskites under the synergetic adsorption of H2O and dimethylsulfoxide (DMSO), which enabled uniform, [100] oriented CsPbI2Br films with a grain size up to 4.4 mu m. It was found that a suitable amount of H2O helps desorb the DMSO molecules, and thus favours the formation of a cubic perovskite phase from DMSO complexed intermediates. Perovskite solar cells based on our strategy delivered an optimized PCE of 16.47% with a high open-voltage of 1.33 V, as well as good device stability against humidity, light and heat.
DOI10.1039/d0ta05118g
Indexed BySCI ; EI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/33268
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.East China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
Recommended Citation
GB/T 7714
Lin, ZQ,Qiao, HW,Zhou, ZR,et al. Water assisted formation of highly oriented CsPbI2Br perovskite films with the solar cell efficiency exceeding 16%[J]. JOURNAL OF MATERIALS CHEMISTRY A,2020,8(34):17670-17674.
APA Lin, ZQ.,Qiao, HW.,Zhou, ZR.,Hou, Y.,Li, XL.,...&Yang, S.(2020).Water assisted formation of highly oriented CsPbI2Br perovskite films with the solar cell efficiency exceeding 16%.JOURNAL OF MATERIALS CHEMISTRY A,8(34),17670-17674.
MLA Lin, ZQ,et al."Water assisted formation of highly oriented CsPbI2Br perovskite films with the solar cell efficiency exceeding 16%".JOURNAL OF MATERIALS CHEMISTRY A 8.34(2020):17670-17674.
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