Amino-bridged attapulgite@perovskite nanocomposites: the role of bridge linkage in their optical properties and stabilities

被引：1

作者：

Qiu, Lei ^{[1
,2
,3
]}

Guan, Mengyu ^{[1
]}

Wang, Wei ^{[1
]}

Molokeev, Maxim S. ^{[4
,5
]}

Polyutov, Sergey P. ^{[4
]}

Dai, Zhigao ^{[1
,3
]}

Li, Guogang ^{[1
,2
]}

机构：

[1] China Univ Geosci, Fac Mat Sci & Chem, 388 Lumo Rd, Wuhan 430074, Peoples R China

[2] China Univ Geosci, Zhejiang Inst, Hangzhou 311305, Peoples R China

[3] China Univ Geosci, Shenzhen Inst, Shenzhen 518052, Peoples R China

[4] Siberian Fed Univ, Int Res Ctr Spect & Quantum Chem IRC SQC, Krasnoyarsk 660041, Russia

[5] RAS, Kirensky Inst Phys, Fed Res Ctr KSC SB, Lab Crystal Phys, Krasnoyarsk 660036, Russia

来源：

INORGANIC CHEMISTRY FRONTIERS | 2023年 / 10卷 / 16期

基金：

中国国家自然科学基金;

关键词：

QUANTUM DOTS; NANOCRYSTALS; LUMINESCENT; BR;

D O I：

10.1039/d3qi00863k

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Perovskite-based nanocomposites have attracted significant interest due to their potential in interfacial engineering, optical modification, and stability enhancement. However, current understanding of the construction models between perovskites and guest materials is limited, and the design concept of perovskite-based nanocomposites remains unclear. Herein, we thoroughly investigated the effects of amino bridge linkages in attapulgite@perovskite nanocomposites on the crystallization kinetics, optical properties, and stabilities of perovskites. We monitored the difference in structural, compositional, and morphological characteristics. The attapulgite@perovskite nanocomposites with amino bridge linkages exhibited a smaller average size distribution of 23.8 & PLUSMN; 5.8 nm and demonstrated enhanced thermal stability (81% relative PL intensity after one heating-cooling cycle) and photo-stability (84% relative PL intensity after 30 h of ultraviolet light irradiation). These improvements can be attributed to effective passivation by the amino bridge linkages. Our work aims to deepen the understanding of perovskite-based nanocomposite construction and inspire new approaches for modifying their optical properties and enhancing their stability.

引用

页码：4797 / 4807

页数：11