Temperature effect on spectral properties of cesium lead bromide perovskite nanocrystals in borogermanate glass

被引：0
|
作者：
Babkina, Anastasia [1 ]
Pavliuk, Aleksandra [1 ]
Zyryanova, Ksenia [1 ]
Kulpina, Ekaterina [1 ]
Bukhvostov, Andrei [1 ]
Oreshkina, Kseniia [1 ]
Dubrovin, Victor [1 ]
Sgibnev, Yevgeniy [1 ]
Ignatiev, Alexandre [1 ]
Nikonorov, Nikolay [1 ]
Klinkov, Victor [2 ]
机构：
[1] ITMO Univ, 4 Birzhevaya Line, St Petersburg 199034, Russia
[2] Peter Great St Petersburg Polytech Univ SPbPU, 29 Polytech Skaya Str, St Petersburg 195251, Russia
来源：
OPTICAL SENSORS 2021 | 2021年 / 11772卷
关键词：
perovskite quantum dots; cesium lead bromide perovskite; borogermanate glass; temperature sensor; phase transition; COPPER CHLORIDE NANOCRYSTALS; STRUCTURAL PHASE-TRANSITIONS; OPTICAL-PROPERTIES; FEATURES; CSPBX3; BR; PRECIPITATION; ABSORPTION; PRESSURE; EMISSION;
D O I：
10.1117/12.2589227
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This work is devoted to the study of phase transitions in CsPbBr3 perovskite nanocrystals nucleated in borogermanate glass. Perovskite nanocrystals are obtained by bulk crystallization in a glass matrix. A series of glass samples with nanocrystals of different sizes is investigated. Upon heating, the temperature dependence of the 1S exciton intensity for the entire series of samples shows the presence of three phase transitions: in the range 130-150, 440-450, and 510-515 degrees C. The first phase transition refers to the transition from a tetragonal to a cubic structure. The last phase transition is associated with the melting of the crystalline phase. The phase transition at 440 degrees. is declared for the first time. Upon cooling, the temperature curve shows the presence of only one phase transition in the region of 330 degrees C, which is associated with the crystallization onset of CsPbBr3 perovskite nanocrystals in glass matrix.
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页数：8
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