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Vol. 32, No. 8(2), S&M2292

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Sensors and Materials, Volume 34, Number 2(2) (2022)
Copyright(C) MYU K.K.
pp. 575-583
S&M2829 Research Paper of Special Issue
https://doi.org/10.18494/SAM3678
Published: February 21, 2022

Scintillation Properties of an Organic–Inorganic Lead Iodide Perovskite Single Crystal Having Quantum Well Structures [PDF]

Kai Okazaki, Daichi Onoda, Daisuke Nakauchi, Naoki Kawano, Hiroyuki Fukushima, Takumi Kato, Noriaki Kawaguchi, and Takayuki Yanagida

(Received October 5, 2021; Accepted October 27, 2021)

Keywords: organic–inorganic perovskite compound, quantum well structure, lead iodide, scintillator, photoluminescence

A (C6H5C2H4NH3)2PbI4 crystal was prepared to investigate its photoluminescence (PL) and scintillation properties. Two PL emission peaks at 525 and 560 nm derived from the recombination of excitons were observed. The obtained PL decay curve was aA (C6H5C2H4NH3)2PbI4 crystal was prepared to investigate its photoluminescence (PL) and scintillation properties. Two PL emission peaks at 525 and 560 nm derived from the recombination of excitons were observed. The obtained PL decay curve was approximated from the sum of three exponential decay functions related to the excitonic luminescence. Under X-ray irradiation, the excitonic emission at 560 nm from shallow trap centers was observed, and the X-ray induced scintillation decay times were 0.8, 6.0, and 37 ns. The full energy peak was observed under 241Am α-ray (5.5 MeV) irradiation, and the light yield was estimated to be ~2900 ph/5.5 MeV-α. pproximated from the sum of three exponential decay functions related to the excitonic luminescence. Under X-ray irradiation, the excitonic emission at 560 nm from shallow trap centers was observed, and the X-ray induced scintillation decay times were 0.8, 6.0, and 37 ns. The full energy peak was observed under 241Am α-ray (5.5 MeV) irradiation, and the light yield was estimated to be ~2900 ph/5.5 MeV-α.

Corresponding author: Kai Okazaki


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Cite this article
Kai Okazaki, Daichi Onoda, Daisuke Nakauchi, Naoki Kawano, Hiroyuki Fukushima, Takumi Kato, Noriaki Kawaguchi, and Takayuki Yanagida, Scintillation Properties of an Organic–Inorganic Lead Iodide Perovskite Single Crystal Having Quantum Well Structures, Sens. Mater., Vol. 34, No. 2, 2022, p. 575-583.



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