Concentration- and temperature-dependent photoluminescence of CsPbBr3 perovskite quantum dots

被引：16

作者：

Wang, Yu ^{[1
]}

Yang, Yue ^{[1
]}

Wang, Peng ^{[2
]}

Bai, Xue ^{[1
]}

机构：

[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China

[2] Jilin Univ, Coll Phys, State Key Lab Superhard Mat, Changchun 130012, Peoples R China

来源：

OPTIK | 2017年 / 139卷

基金：

中国国家自然科学基金;

关键词：

Concentration; Temperature; Self-absorption; CsPbBr3; Perovskite; CORE OPTICAL-FIBER; SOLAR-CELLS; NANOCRYSTALS; EMISSION; SEMICONDUCTORS; EFFICIENT;

D O I：

10.1016/j.ijleo.2017.03.117

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The concentration and temperature dependence of photoluminescence (PL) performance was investigated, which indicated that the main emission in CsPbBr3 perovskite quantum dots was related to the band-edge mechanism. As the concentration increased from 0.1 to 10.0 mol/L at 293 K, the center of emission band exhibited a regular redshift, as well as the peak intensity increased initially and then declined, which could be attributed to the self-absorption processes. Along with the variation of temperature (273-353 K), peak wavelength, full width of half maximum (FWHM), and peak intensity of PL spectra presented a corresponding linear changes. In addition, the temperature reversibility revealed that CsPbBr3 QDs were reliable candidates for temperature sensor and optoelectronic devices. (C) 2017 Elsevier GmbH. All rights reserved.

引用

页码：56 / 60

页数：5

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