In situ confined growth of ultrasmall perovskite quantum dots in metal-organic frameworks and their quantum confinement effect

doi:10.1039/D0NR04741D

	In situ confined growth of ultrasmall perovskite quantum dots in metal-organic frameworks and their quantum confinement effect
	Xie, Ziren1,2,3,4 ; Li, Xingjun 1,2,4; Li, Renfu 1,2; Lu, Shan 1,2,4; Zheng, Wei 1,2,4; Tu, Datao 1,2,4; Feng, Yanhui 1,2; Chen, Xueyuan1,2,3,4,5
	2020-08-05
发表期刊	NANOSCALE (IF:5.8[JCR-2023],6.1[5-Year])
ISSN	2040-3372
EISSN	2040-3372
卷号	12 期号:32 页码:17113-17120
发表状态	已发表
DOI	10.1039/D0NR04741D
摘要	The metal halide perovskite quantum dots (APbX(3) PeQDs; A = Cs or CH3NH3; X = Cl, Br or I) have emerged as a new type of promising optoelectronic material for light-emitting and photovoltaic applications because of their excellent optical properties. However, the precise control over the size and photoluminescence (PL) emission of APbX(3) PeQDs remains a great challenge, which has been one of the main obstacles to the applications of PeQDs. Herein, we report a unique strategy for in situ confined growth of MAPbBr(3) (MA = CH3NH3) PeQDs by using porous metal-organic framework (MOF) UiO-66 as a matrix. By introducing Pb(Ac)(2) and MABr precursors into the pores of UiO-66 via a stepwise approach, ultrasmall MAPbBr(3) PeQDs were in situ grown in the matrix with the size tuned from 6.4 to 3.3 nm by changing the concentration of the Pb(Ac)(2) precursor. Accordingly, the PL emission wavelength of the resulting MAPbBr(3) PeQDs was blue-shifted from 521 to 486 nm with the size reduction, owing to the strong quantum confinement effect of the PeQDs. Due to the surface passivation effect endowed by the UiO-66 matrix, the ultrasmall MAPbBr(3) PeQDs also displayed a high PL quantum yield (PLQY) of 43.3% and a long PL lifetime of 100.3 ns. This study proposes a new strategy to prepare ultrasmall PeQDs and effectively control their sizes and PL emissions, which may open up new avenues for the development of high-performance luminescent PeQDs for diverse applications.
关键词	Lead compounds Photocatalytic activity Organic light emitting diodes (OLED) Organometallics Bromine compounds Nanocrystals Passivation Blue shift Light emission Perovskite Semiconductor quantum dots Diverse applications Halide perovskites Opto-electronic materials Photoluminescence emission Photovoltaic applications Quantum confinement effects Stepwise approach Surface passivation effects
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	Science and Technology Cooperation Fund between Chinese and Australian Governments[2017YFE0132300] ; Strategic Priority Research Program of the CAS[XDB20000000] ; NSFC[U1805252][21975257][21771178][51672272][11774345] ; CAS/SAFEA International Partnership Program for Creative Research Teams, Youth Innovation Promotion Association of CAS[2017347]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000561429100044
出版者	ROYAL SOC CHEMISTRY
EI入藏号	20204309376263
EI主题词	Metal halides
EI分类号	482.2 Minerals ; 539.2.1 Protection Methods ; 714.2 Semiconductor Devices and Integrated Circuits ; 741.1 Light/Optics ; 761 Nanotechnology ; 801.4 Physical Chemistry ; 804 Chemical Products Generally ; 804.1 Organic Compounds ; 933.1 Crystalline Solids
WOS关键词	LEAD HALIDE PEROVSKITES ; OPTICAL-PROPERTIES ; NANOCRYSTALS ; LUMINESCENT ; STABILITY ; EMISSION ; BR ; CL
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/122523
专题	物质科学与技术学院_硕士生物质科学与技术学院_特聘教授组_陈学元组
通讯作者	Li, Xingjun; Chen, Xueyuan
作者单位	1.Chinese Acad Sci, Fujian Inst Res Struct Matter, CAS Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Fujian, Peoples R China 2.Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian Key Lab Nanomat, Fuzhou 350002, Fujian, Peoples R China 3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Fujian Sci & Technol Innovat Lab Optoelect Inform, Fuzhou 350108, Fujian, Peoples R China
第一作者单位	物质科学与技术学院
通讯作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Xie, Ziren,Li, Xingjun,Li, Renfu,et al. In situ confined growth of ultrasmall perovskite quantum dots in metal-organic frameworks and their quantum confinement effect[J]. NANOSCALE,2020,12(32):17113-17120.
APA	Xie, Ziren.,Li, Xingjun.,Li, Renfu.,Lu, Shan.,Zheng, Wei.,...&Chen, Xueyuan.(2020).In situ confined growth of ultrasmall perovskite quantum dots in metal-organic frameworks and their quantum confinement effect.NANOSCALE,12(32),17113-17120.
MLA	Xie, Ziren,et al."In situ confined growth of ultrasmall perovskite quantum dots in metal-organic frameworks and their quantum confinement effect".NANOSCALE 12.32(2020):17113-17120.