Terahertz Wave Absorption Property of all Mixed Organic–Inorganic Hybrid Perovskite Thin Film MA(Sn, Pb)(Br, I)3 Fabricated by Sequential Vacuum Evaporation Method

Maeng, Inhee and Tanaka, Hiroshi and Mag-usara, Valynn Katrine and Nakajima, Makoto and Nakamura, Masakazu and Jung, Min-Cherl (2021) Terahertz Wave Absorption Property of all Mixed Organic–Inorganic Hybrid Perovskite Thin Film MA(Sn, Pb)(Br, I)3 Fabricated by Sequential Vacuum Evaporation Method. Frontiers in Chemistry, 9. ISSN 2296-2646

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Official URL: https://doi.org/10.3389/fchem.2021.753141

Abstract

All mixed hybrid perovskite (MA(Sn, Pb)(Br,I)3) thin film was fabricated by sequential vacuum evaporation method. To optimize the first layer with PbBr2 and SnI2, we performed different annealing treatments. Further, MA(Sn, Pb)(Br, I)3 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.

Item Type:	Article
Subjects:	Eurolib Press > Chemical Science
Depositing User:	Managing Editor
Date Deposited:	13 Mar 2023 06:21
Last Modified:	02 Jan 2024 12:54
URI:	http://info.submit4journal.com/id/eprint/809

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