TY - JOUR
T1 - Novel class of organic crystal scintillators based on aggregation-induced emission
AU - Sato, Atsushi
AU - Koshimizu, Masanori
AU - Fujimoto, Yutaka
AU - Komatsuzaki, Shusuke
AU - Kishimoto, Shunji
AU - Asai, Keisuke
N1 - Funding Information:
This research was supported by the Grant-in-Aid for Scientific Research (A) (Grant No. 18H03890, 2018–2021). Part of this research was supported by the Cooperative Research Project of the Research Center for Biomedical Engineering, Ministry of Education, Culture, Sports, Science, and Technology.
Publisher Copyright:
© 2022 The Royal Society of Chemistry.
PY - 2022/5/16
Y1 - 2022/5/16
N2 - Herein, we synthesized 1,1,2,3,4,5-hexaphenyl-1H-silole (HPS) crystals to develop organic crystal scintillators based on aggregation-induced emission (AIE). The scintillation properties of HPS crystals were characterized. An emission peak at approximately 490 nm was observed in photoluminescence emission and X-ray-excited radioluminescence spectra. The scintillation decay time constants were 5.4, and 21 ns. HPS crystals exhibited light yields of 3100 photons/5.5 MeV and 11 000 photons/MeV under α-ray and X-ray irradiation, respectively. The light yield and scintillation decay time of HPS crystals are comparable to those of conventional organic crystal scintillators, indicating the suitability of such organic crystals as scintillation materials based on AIE behavior.
AB - Herein, we synthesized 1,1,2,3,4,5-hexaphenyl-1H-silole (HPS) crystals to develop organic crystal scintillators based on aggregation-induced emission (AIE). The scintillation properties of HPS crystals were characterized. An emission peak at approximately 490 nm was observed in photoluminescence emission and X-ray-excited radioluminescence spectra. The scintillation decay time constants were 5.4, and 21 ns. HPS crystals exhibited light yields of 3100 photons/5.5 MeV and 11 000 photons/MeV under α-ray and X-ray irradiation, respectively. The light yield and scintillation decay time of HPS crystals are comparable to those of conventional organic crystal scintillators, indicating the suitability of such organic crystals as scintillation materials based on AIE behavior.
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U2 - 10.1039/d2qm00187j
DO - 10.1039/d2qm00187j
M3 - Article
AN - SCOPUS:85132068200
SN - 2052-1537
VL - 6
SP - 1470
EP - 1476
JO - Materials Chemistry Frontiers
JF - Materials Chemistry Frontiers
IS - 11
ER -