Lead-Free Sodium-Indium Double Perovskite Nanocrystals through Doping Silver Cations for Bright Yellow Emission

doi:10.1002/anie.201909525

	Lead-Free Sodium-Indium Double Perovskite Nanocrystals through Doping Silver Cations for Bright Yellow Emission
	Han, Peigeng 1,2,3; Mao, Xin 2,3; Yang, Songqiu 3; Zhang, Fei 2,3; Yang, Bin 3; Wei, Donghui 4; Deng, Weiqiao 1,3; Han, Keli 1,3
刊名	JOURNAL OF ULTRASOUND IN MEDICINE
	2019-10-16
页码	6
关键词	double perovskites nanocrystals photoluminescence silver ion doping self-trapped excitons (STEs)
ISSN号	0278-4297
DOI	10.1002/anie.201909525
通讯作者	Han, Keli(klhan@dicp.ac.cn)
英文摘要	Lead-free halide perovskite nanocrystals (NCs) have drawn wide attention for solving the problem of lead perovskites toxicity and instability. Herein, we synthesize the direct band gap double perovskites undoped and Ag-doped Cs2NaInCl6 NCs by variable temperature hot injection. The Cs2NaInCl6 NCs have little photoluminescence because of dark self-trapped excitons (STEs). The dark STEs can be converted into bright STEs by doping with Ag+ to produce a bright yellow emission, with the highest photoluminescence quantum efficiency of 31.1%. The dark STEs has been directly detected experimentally by ultrafast transient absorption (TA) techniques. The dynamics mechanism is further studied. In addition, the Ag-doped NCs show better stability than the undoped ones. This result provides a new way to enhance the optical properties of lead-free perovskites NCs for high-performance light emitters.
资助项目	National Key Research and Development Program of China[2017YFA0204800] ; National Natural Science Foundation of China[21833009] ; National Natural Science Foundation of China[21533010] ; National Natural Science Foundation of China[21525315] ; DICP[DMTO201601] ; DICP[ZZBS201703] ; Science Challenging Program[JCKY2016212A501]
WOS关键词	WHITE-LIGHT EMISSION ; HALIDE PEROVSKITES ; COLLOIDAL NANOCRYSTALS ; ANION-EXCHANGE ; RB ; BI ; BR
WOS研究方向	Acoustics ; Radiology, Nuclear Medicine & Medical Imaging
语种	英语
出版者	WILEY
WOS记录号	WOS:000490306700001
资助机构	National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; DICP ; DICP ; Science Challenging Program ; Science Challenging Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; DICP ; DICP ; Science Challenging Program ; Science Challenging Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; DICP ; DICP ; Science Challenging Program ; Science Challenging Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; DICP ; DICP ; Science Challenging Program ; Science Challenging Program
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/172302]
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 266237, Shandong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Inst Chem Phys, State Key Lab Mol React Dynam Dalian, Dalian 116023, Peoples R China 4.Zhengzhou Univ, Coll Chem & Mol Engn, 100 Sci Ave, Zhengzhou 450001, Henan, Peoples R China
推荐引用方式 GB/T 7714	Han, Peigeng,Mao, Xin,Yang, Songqiu,et al. Lead-Free Sodium-Indium Double Perovskite Nanocrystals through Doping Silver Cations for Bright Yellow Emission[J]. JOURNAL OF ULTRASOUND IN MEDICINE,2019:6.
APA	Han, Peigeng.,Mao, Xin.,Yang, Songqiu.,Zhang, Fei.,Yang, Bin.,...&Han, Keli.(2019).Lead-Free Sodium-Indium Double Perovskite Nanocrystals through Doping Silver Cations for Bright Yellow Emission.JOURNAL OF ULTRASOUND IN MEDICINE,6.
MLA	Han, Peigeng,et al."Lead-Free Sodium-Indium Double Perovskite Nanocrystals through Doping Silver Cations for Bright Yellow Emission".JOURNAL OF ULTRASOUND IN MEDICINE (2019):6.