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

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Sensors and Materials
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Sensors and Materials, Volume 34, Number 2(2) (2022)
Copyright(C) MYU K.K.
pp. 585-593
S&M2830 Research Paper of Special Issue
https://doi.org/10.18494/SAM3679
Published: February 21, 2022

Effect of Cu Doping on Photoluminescence and Scintillation Properties of (C6H5C2H4NH3)2PbBr4 [PDF]

Daichi Onoda, Masaki Akatsuka, Naoki Kawano, Takumi Kato, Daisuke Nakauchi, Noriaki Kawaguchi, and Takayuki Yanagida

(Received October 5, 2021; Accepted October 21, 2021)

Keywords: photoluminescence, scintillation, quantum-well structure, organic lead halide perovskite, Cu

The photoluminescence (PL) and scintillation properties of (C6H5C2H4NH3)2Pb1−xCuxBr4 (x = 0.05, 0.1, 0.25, and 0.5) single crystals prepared by the poor-solvent diffusion method were evaluated. In the PL profiles, free- and bound-exciton luminescence peaks at 410 and 440 nm were observed, respectively. The PL quantum yields (QYs) of the x = 0.05, 0.1, 0.25, a nd 0.5 samples were 20.0, 19.3, 18.4, and 16.7% with 2% errors, respectively. In the scintillation profiles, a bound-exciton luminescence peak was observed at 440 nm. Under γ-ray exposure with 137Cs, a photoabsorption peak was observed in all the samples, and the scintillation light yields of the x = 0.05, 0.1, 0.25, and 0.5 samples were estimated to be ~12000, ~11000, ~10000, and ~9700 ph/MeV with 10% errors, respectively.

Corresponding author: Daichi Onoda


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Cite this article
Daichi Onoda, Masaki Akatsuka, Naoki Kawano, Takumi Kato, Daisuke Nakauchi, Noriaki Kawaguchi, and Takayuki Yanagida, Effect of Cu Doping on Photoluminescence and Scintillation Properties of (C6H5C2H4NH3)2PbBr4, Sens. Mater., Vol. 34, No. 2, 2022, p. 585-593.



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