研究業績
Japanese Journal of Applied Physics / IOP Publishing 62, 1, 010610 (2022)
Scintillation properties of (C<sub>6</sub>H<sub>5</sub>C<sub>n</sub>H<sub>2n</sub>NH<sub>3</sub>)<sub>2</sub>PbCl<sub>4</sub> (n = 1–4)
著者
Takeru Suto1, Naoki Kawano1, <u>Kai Okazaki</u>2, Yuma Takebuchi2, Hiroyuki Fukushima2, Takumi Kato2, Daisuke Nakauchi2 and Takayuki Yanagida2, 1 Akita Univ. 2 NAIST
カテゴリ
査読付共著論文
Abstract
Organic–inorganic perovskite crystals (C6H5CnH2nNH3)2PbCl4 (n = 1: PMA, n = 2: PEA, n = 3: PPA, and n = 4: PBA) were prepared, and their scintillation characteristics were evaluated. A broad emission peak originating from self-trapped excitons (STE) was observed from all of the crystals when excited by 310 nm light. Further, the broad emission was also clearly observed from PMA, PEA, and PBA under X-ray. Moreover, the scintillation light yields under α-ray were calculated to be 1460 (PEA), 439 (PPA), and 120 (PBA) photons/5.5 MeV-α, and the light yield of PEA was higher than that of a ZnO single crystal. In addition, all of the crystals showed a fast decay-time attributable to STE under X-ray.
