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采用顺序真空蒸发法制备的全混合有机-无机杂化钙钛矿薄膜MA(Sn, Pb)(Br, I)的太赫兹波吸收特性

Terahertz Wave Absorption Property of all Mixed Organic-Inorganic Hybrid Perovskite Thin Film MA(Sn, Pb)(Br, I) Fabricated by Sequential Vacuum Evaporation Method.

作者信息

Maeng Inhee, Tanaka Hiroshi, Mag-Usara Valynn Katrine, Nakajima Makoto, Nakamura Masakazu, Jung Min-Cherl

机构信息

YUHS-KRIBB, Medical Convergence Research Institute, College of Medicine, Yonsei University, Seoul, South Korea.

Division of Materials Science, Nara Institute of Science and Technology, Ikoma, Japan.

出版信息

Front Chem. 2021 Sep 16;9:753141. doi: 10.3389/fchem.2021.753141. eCollection 2021.

DOI:10.3389/fchem.2021.753141
PMID:34604176
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8481619/
Abstract

All mixed hybrid perovskite (MA(Sn, Pb)(Br,I)) thin film was fabricated by sequential vacuum evaporation method. To optimize the first layer with PbBr and SnI, we performed different annealing treatments. Further, MA(Sn, Pb)(Br, I) thin film was synthesized on the optimized first layer by evaporating MAI and post-annealing. The formed hybrid perovskite thin film exhibited absorptions at 1.0 and 1.7 THz with small absorbance (<10%). Moreover, no chemical and structural defect-incorporated absorption was found. In this study, the possibility of changing terahertz absorption frequency through the mixture of metal cations (Sn and Pb) and halogen anions (Br and I) was verified.

摘要

所有混合杂化钙钛矿（MA(Sn, Pb)(Br, I)）薄膜均采用顺序真空蒸发法制备。为了用PbBr和SnI优化第一层，我们进行了不同的退火处理。此外，通过蒸发MAI并进行后退火，在优化后的第一层上合成了MA(Sn, Pb)(Br, I)薄膜。所形成的杂化钙钛矿薄膜在1.0和1.7太赫兹处表现出吸收，吸光度较小（<10%）。此外，未发现化学和结构缺陷引起的吸收。在本研究中，验证了通过金属阳离子（Sn和Pb）和卤素阴离子（Br和I）的混合来改变太赫兹吸收频率的可能性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f06/8481619/a5b4ed4e0235/fchem-09-753141-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f06/8481619/1e21d55a924e/fchem-09-753141-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f06/8481619/a46e48269858/fchem-09-753141-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f06/8481619/7c6fd7db697d/fchem-09-753141-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f06/8481619/d4fc4f3d2538/fchem-09-753141-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f06/8481619/a5b4ed4e0235/fchem-09-753141-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f06/8481619/1e21d55a924e/fchem-09-753141-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f06/8481619/a46e48269858/fchem-09-753141-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f06/8481619/7c6fd7db697d/fchem-09-753141-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f06/8481619/d4fc4f3d2538/fchem-09-753141-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f06/8481619/a5b4ed4e0235/fchem-09-753141-g005.jpg

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