Comparative Study on the Crystallite Size and Bandgap of Perovskite by Diverse Methods

被引：14

作者：

Ahmed, Mohammad Tanvir ^{[1
]}

Islam, Shariful ^{[1
]}

Ahmed, Farid ^{[1
]}

机构：

[1] Janangirnagar Univ, Dept Phys, Dhaka 1342, Bangladesh

来源：

ADVANCES IN CONDENSED MATTER PHYSICS | 2022年 / 2022卷

关键词：

THIN-FILMS; DISORDER;

D O I：

10.1155/2022/9535932

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

This research demonstrates the fast synthesis of CH3NH3PbBr3 perovskite powder via antisolvent addition and further thin-film synthesis by one-step spin coating. The structural and optical properties are investigated via X-ray diffraction, Fourier-transform infrared spectroscopy, and UV-Vis spectroscopy. Crystallite sizes are compared by three different size estimation techniques, which range between 95.8 nm and 105 nm. The perovskite showed a higher absorption coefficient over 10(4) cm(-1) and a refractive index from 3.4 to 2.3 in the visible spectrum. The bandgap was estimated via three district methods, which revealed a very slightly varied bandgap in the range of 2.29 eV-2.32 eV.

引用

页数：7

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