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 |
DOI | 10.1002/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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