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Chinese Academy of Sciences Institutional Repositories Grid
Colloidal synthesis and charge-carrier dynamics of cs2agsb1-ybiyx6 (x: br, cl; 0 <= y <= 1) double perovskite nanocrystals

文献类型:期刊论文

作者Yang, Bin1,2; Hong, Feng1,2; Chen, Junsheng1; Tang, Yuxuan1,2; Yang, Li1,2; Sang, Youbao2,4; Xia, Xusheng2,4; Guo, Jingwei4; He, Haixiang5; Yang, Songqiu1
刊名Angewandte chemie-international edition
出版日期2019-02-18
卷号58期号:8页码:2278-2283
ISSN号1433-7851
关键词Carrier-phonon coupling Perovskites Hot-carrier cooling Nanocrystals Trapped state
DOI10.1002/anie.201811610
通讯作者Han, keli(klhan@dicp.ac.cn)
英文摘要A series of lead-free double perovskite nanocrystals (ncs) cs2agsb1-ybiyx6 (x: br, cl; 0 <= y <= 1) is synthesized. in particular, the cs2agsbbr6 ncs is a new double perovskite material that has not been reported for the bulk form. mixed ag-sb/bi ncs exhibit enhanced stability in colloidal solution compared to ag-bi or ag-sb ncs. femtosecond transient absorption studies indicate the presence of two prominent fast trapping processes in the charge-carrier relaxation. the two fast trapping processes are dominated by intrinsic self-trapping (ca. 1-2 ps) arising from giant exciton-phonon coupling and surface-defect trapping (ca. 50-100 ps). slow hot-carrier relaxation is observed at high pump fluence, and the possible mechanisms for the slow hot-carrier relaxation are also discussed.
WOS关键词HALIDE DOUBLE PEROVSKITES ; LEAD-FREE ; RECOMBINATION DYNAMICS ; ANION-EXCHANGE ; EMISSION ; CSPBX3
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
语种英语
出版者WILEY-V C H VERLAG GMBH
WOS记录号WOS:000458417700014
URI标识http://www.irgrid.ac.cn/handle/1471x/2372827
专题大连化学物理研究所
通讯作者Han, Keli
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Shandong Univ, Inst Mol Sci & Engn, Qingdao, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Chem Lasers, Dalian 116023, Peoples R China
5.Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China
推荐引用方式
GB/T 7714
Yang, Bin,Hong, Feng,Chen, Junsheng,et al. Colloidal synthesis and charge-carrier dynamics of cs2agsb1-ybiyx6 (x: br, cl; 0 <= y <= 1) double perovskite nanocrystals[J]. Angewandte chemie-international edition,2019,58(8):2278-2283.
APA Yang, Bin.,Hong, Feng.,Chen, Junsheng.,Tang, Yuxuan.,Yang, Li.,...&Han, Keli.(2019).Colloidal synthesis and charge-carrier dynamics of cs2agsb1-ybiyx6 (x: br, cl; 0 <= y <= 1) double perovskite nanocrystals.Angewandte chemie-international edition,58(8),2278-2283.
MLA Yang, Bin,et al."Colloidal synthesis and charge-carrier dynamics of cs2agsb1-ybiyx6 (x: br, cl; 0 <= y <= 1) double perovskite nanocrystals".Angewandte chemie-international edition 58.8(2019):2278-2283.

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来源:大连化学物理研究所

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