CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Collective and individual impacts of the cascade doping of alkali cations in perovskite single crystals
Zhang, Y; Huang, Y; Wang, XG; Sun, JL; Si, R; Zhou, HP
2020
Source PublicationJOURNAL OF MATERIALS CHEMISTRY C
ISSN2050-7526
Volume8Issue:43Pages:15351-15360
Subtype期刊论文
AbstractAlkali ion (Cs+, Rb+ and K+) incorporated hybrid perovskite polycrystalline films have shown great potential for obtaining highly efficient and stable perovskite solar cells. A study on the intrinsic influence of different alkali ions on perovskites is urgently needed to gain insights into the optoelectronic performance improvement. Single crystals with fewer defects can be ideal candidates for the study of intrinsic properties. Herein, for the first time, we prepared a series of perovskite (FA(0.85)MA(0.15)PbI(2.55)Br(0.45)) single crystals with Cs+, Rb+, and K+ cascade doping using the "inverse temperature crystallization" method and systematically characterized their structure and optoelectronic properties, as well as phase, humidity and thermal stability. Our work highlights the structure-property relationship, that is, diversified A-site occupation (especially the FAMACsRb system) can significantly promote the carrier transport behavior of perovskites, as well as achieving better thermal and humidity stability, while K+ doping degrades the intrinsic properties of perovskites, which is probably due to the interstitial occupation of K+. These findings deepen the understanding of the influence of alkali ion doping on the intrinsic properties of perovskite materials, which will provide an exemplary paradigm for further exploration.
KeywordSOLAR-CELLS HALIDE PEROVSKITES HIGH-PERFORMANCE
DOI10.1039/d0tc03085f
Indexed BySCI ; EI
Language英语
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Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/32750
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Peking Univ, Beijing Key Lab Theory & Technol Adv Battery Mat, Key Lab Polymer Chem & Phys, Minist Educ,BIC ESAT,Dept Mat Sci & Engn,Coll Eng, Beijing 100871, Peoples R China
2.Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Y,Huang, Y,Wang, XG,et al. Collective and individual impacts of the cascade doping of alkali cations in perovskite single crystals[J]. JOURNAL OF MATERIALS CHEMISTRY C,2020,8(43):15351-15360.
APA Zhang, Y,Huang, Y,Wang, XG,Sun, JL,Si, R,&Zhou, HP.(2020).Collective and individual impacts of the cascade doping of alkali cations in perovskite single crystals.JOURNAL OF MATERIALS CHEMISTRY C,8(43),15351-15360.
MLA Zhang, Y,et al."Collective and individual impacts of the cascade doping of alkali cations in perovskite single crystals".JOURNAL OF MATERIALS CHEMISTRY C 8.43(2020):15351-15360.
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