Lead-Free Silver-Bismuth Halide Double Perovskite Nanocrystals
文献类型：期刊论文
| 作者 | Sun, Lei2; Han, Peigeng2,3; Pullerits, Tonu4,5; Han, Keli1,2; Deng, Weiqiao1,2; Yang, Bin2,3; Chen, Junsheng2,4,5; Yang, Songqiu2; Hong, Feng2,3 |
| 刊名 | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
 |
| 出版日期 | 2018-05-04 |
| 卷号 | 57期号:19页码:5359-5363 |
| ISSN号 | 1433-7851 |
| 关键词 | Bismuth Charge Carriers Double Perovskites Nanocrystals Silver |
| DOI | 10.1002/anie.201800660 |
| 文献子类 | Article |
| 英文摘要 | Lead-free perovskite nanocrystals (NCs) were obtained mainly by substituting a Pb2+ cation with a divalent cation or substituting three Pb2+ cations with two trivalent cations. The substitution of two Pb2+ cations with one monovalent Ag+ and one trivalent Bi3+ cations was used to synthesize Cs2AgBiX6 (X=Cl, Br, I) double perovskite NCs. Using femtosecond transient absorption spectroscopy, the charge carrier relaxation mechanism was elucidated in the double perovskite NCs. The Cs2AgBiBr6 NCs exhibit ultrafast hot-carrier cooling (<1ps), which competes with the carrier trapping processes (mainly originate from the surface defects). Notably, the photoluminescence can be increased by 100 times with surfactant (oleic acid) added to passivate the defects in Cs2AgBiCl6 NCs. These results suggest that the double perovskite NCs could be potential materials for optoelectronic applications by better controlling the surface defects. |
| WOS关键词 | LIGHT-EMITTING-DIODES ; QUANTUM DOTS ; DYNAMICAL PROPERTIES ; ANION-EXCHANGE ; EMISSION ; CSPBX3 ; BR ; ABSORPTION ; CL ; SEMICONDUCTORS |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| WOS记录号 | WOS:000431035500029 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/167220]  |
| 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.Shandong Univ, Inst Mol Sci & Engn, Qingdao, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 4.Lund Univ, Dept Chem Phys, POB 124, S-22100 Lund, Sweden 5.Lund Univ, NanoLund Chem Ctr, POB 124, S-22100 Lund, Sweden |
| 推荐引用方式 GB/T 7714 | Sun, Lei,Han, Peigeng,Pullerits, Tonu,et al. Lead-Free Silver-Bismuth Halide Double Perovskite Nanocrystals[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2018,57(19):5359-5363. |
| APA | Sun, Lei.,Han, Peigeng.,Pullerits, Tonu.,Han, Keli.,Deng, Weiqiao.,...&Hong, Feng.(2018).Lead-Free Silver-Bismuth Halide Double Perovskite Nanocrystals.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,57(19),5359-5363. |
| MLA | Sun, Lei,et al."Lead-Free Silver-Bismuth Halide Double Perovskite Nanocrystals".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 57.19(2018):5359-5363. |
入库方式： OAI收割
来源：大连化学物理研究所
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