放射发光
闪烁
闪烁体
量子点
光致发光
钙钛矿(结构)
吸收(声学)
材料科学
伽马射线
光子
辐照
光电子学
纳米技术
光学
物理
化学
核物理学
结晶学
探测器
复合材料
作者
Arisa Magi,Masanori Koshimizu,Atsushi Satô,Yutaka Fujimoto,Shunji Kishimoto,Takayuki Yanagida,Keisuke Asai
标识
DOI:10.35848/1347-4065/ac19fe
摘要
Abstract We developed plastic scintillators loaded with perovskite quantum dots (QDs) to enhance the detection efficiency for high-energy photons such as X-rays and gamma rays. QDs with different emission wavelengths were loaded onto plastic scintillators at 5 wt%. The emission from the QDs only was observed in the radioluminescence spectra under X-ray irradiation. The photoluminescence decay behavior indicates that the absorption of the QD emission by the QDs themselves (self-absorption) results in long decay components, which were also observed in the scintillation decay. The detection efficiency for 67.4 keV X-rays was successfully enhanced by loading, although the scintillation light yield was reduced.
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