半导体
材料科学
极化子
电介质
带隙
热传导
量子隧道
凝聚态物理
放松(心理学)
电导率
电阻率和电导率
钙钛矿(结构)
光电子学
化学
电气工程
物理
电子
复合材料
物理化学
量子力学
结晶学
心理学
社会心理学
工程类
作者
M. Krimi,Fadhel Hajlaoui,Mohammed S. M. Abdelbaky,Santiago García-Granda,A. Ben Rhaiem
出处
期刊:RSC Advances
[The Royal Society of Chemistry]
日期:2024-01-01
卷期号:14 (15): 10219-10228
摘要
Metallic perovskites have advantageous optical and electrical properties, making them a valuable class of semiconductors for the manufacturing of solar cells. CsMnBr3 is notable among them due to its important optical characteristics. The electrical and dielectric characteristics as a semiconductor are examined in this study. Direct transitions with a 3.29 eV bandgap and an Urbach energy of 0.96 eV are revealed by the results. Through AC conductivity, it demonstrated semiconductor characteristics at 443 K. The dielectric loss varied with frequency and peaked at high frequencies. Furthermore, as temperature rose, a relaxation peak in the electrical modulus was seen to migrate to higher frequencies. Ac conductivity is described by the double power law expression. The conduction in our compound is governed by small polaron tunneling. Based on the optical results reported in the bibliography for this sample, we realize the importance of examining the electrical characteristics to comprehend the semiconductor behavior of CsMnBr3.
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