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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Xia, Xusheng2,4; Yang, Bin1,2; Hong, Feng1,2; Chen, Junsheng1; Tang, Yuxuan1,2; Yang, Li1,2; Sang, Youbao2,4; 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
关键词carrier-phonon coupling perovskites hot-carrier cooling nanocrystals trapped state
ISSN号1433-7851
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
资助项目National Natural Science Foundation of China[21833009] ; National Natural Science Foundation of China[21533010] ; National Natural Science Foundation of China[21525315] ; National Key Research and Development Program of China[2017YFA0204800] ; DICP[DMTO201601] ; DICP[ZZBS201703] ; Science Challenging Program[JCKY2016212A501]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000458417700014
出版者WILEY-V C H VERLAG GMBH
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; DICP ; DICP ; Science Challenging Program ; Science Challenging Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; DICP ; DICP ; Science Challenging Program ; Science Challenging Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; DICP ; DICP ; Science Challenging Program ; Science Challenging Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; DICP ; DICP ; Science Challenging Program ; Science Challenging Program
源URL[http://cas-ir.dicp.ac.cn/handle/321008/166120]  
专题大连化学物理研究所_中国科学院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		 Xia, Xusheng,Yang, Bin,Hong, Feng,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 Xia, Xusheng.,Yang, Bin.,Hong, Feng.,Chen, Junsheng.,Tang, Yuxuan.,...&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 Xia, Xusheng,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.

入库方式： OAI收割

来源：大连化学物理研究所

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