High-temperature photoluminescence OF CsPbBr3 perovskite nanocrystals in the fluorophosphate glasses

被引：9
作者：
Kolobkova, E. V. [1 ,2 ]
Semaan, R. [1 ]
Kuznetsova, M. S. [3 ]
Nikonorov, N. V. [1 ]
机构：
[1] ITMO Univ, Birzhevaya Line 4, St Petersburg 199034, Russia
[2] Tech Univ, St Petersburg State Inst Technol, Moskovsky Pr 26, St Petersburg 190013, Russia
[3] St Petersburg State Univ, Spin Opt Lab, St Petersburg 198504, Russia
来源：
JOURNAL OF LUMINESCENCE | 2023年 / 255卷
关键词：
CsPbBr3; perovskites; Fluorophosphate glass; Nanocrystals; Quantum dot; Photoluminescence; Band gap shift; QUANTUM DOTS; EFFICIENT; CSPBX3; STABILITY; EMISSION; FILMS; QDS; BR;
D O I：
10.1016/j.jlumin.2022.119541
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
For the first time the temperature dependence of the photoluminescence of the semiconductor CsPbBr3 perov-skite nanocrystals with sizes of 6.0-9.0 nm in fluorophosphate glass were investigated in the temperature range from 300 K to 423 K. It was shown that temperature dependence of the photoluminescence intensity and the band gap shift coefficient change at 350 K corresponding to the isostructural phase transition. The photo-luminescence intensity decreased radically above this temperature. The temperature energy gap coefficients of the CsPbBr3 nanocrystals depending on the size and temperature range were found.
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页数：7
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