Synthesis and investigation of CsPbBr3 perovskite quantum dot thin-film on FTO substrate

被引：2
作者：
Ahirwar, Pooja [1 ]
Kumar, Ranveer [1 ]
机构：
[1] Dr Harisingh Gour Cent Univ, Dept Phys, Sagar 470003, Madhya Pradesh, India
来源：
CHEMICAL PHYSICS LETTERS | 2023年 / 810卷
关键词：
Inorganic Perovskite; CsPbBr; 3; Quantum Dots; Optical Constant; Ellipsometry; OPTICAL-CONSTANTS; PHOTOLUMINESCENCE; NANOCRYSTALS; ENHANCEMENT; STABILITY; EMISSION; GLASS;
D O I：
10.1016/j.cplett.2022.140180
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The Cesium lead Bromide Perovskite-QDs (CPBP-QDs) is synthesized by ligand-assisted reprecipitation method and thin film is fabricated on FTO substrate by spin coating technique. CPBP-QDs thin-film showed a prominent absorption peak at 507 nm with direct band gap of 2.36 eV and PL peak comes in visible range with green -coloured emission. The ellipsometry result shows the refractive index of CPBP-QDs thin film is 2.02 at emis-sion wavelength (520 nm) and extinction coefficient is 0.22 at 506 nm. The absorption coefficient obtained by ellipsometry is consistent with the experimental data. These results indicate CPBP-QDs may be a good alternative for device fabrications.
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页数：7
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