Optical and scintillation characteristics of organic-inorganic layered compounds with a linear alkyl diamine

被引：2

作者：

Suto, Takeru ^{[1
]}

Kawano, Naoki ^{[1
]}

Okazaki, Kai ^{[2
]}

Ichiba, Kensei ^{[2
]}

Takebuchi, Yuma ^{[2
]}

Kato, Takumi ^{[2
]}

Nakauchi, Daisuke ^{[2
]}

Yanagida, Takayuki ^{[2
]}

机构：

[1] Akita Univ, Grad Sch Engn Sci, 1-1 Tegata Gakuen Machi, Akita 0108502, Japan

[2] Nara Inst Sci & Technol, Grad Sch Sci & Technol, 8916-5 Takayama Cho, Nara 6300192, Japan

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2024年 / 35卷 / 02期

基金：

日本学术振兴会;

关键词：

WHITE-LIGHT EMISSION; LUMINESCENCE; PEROVSKITES; PBI2;

D O I：

10.1007/s10854-024-11935-8

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We prepared organic-inorganic layered perovskite-type compounds having a linear alkyl diamine (NH3CnH2nNH3)PbCl4 (n = 6: (1, 6-DHX)PbCl4, n = 7: (1,7-DHP)PbCl4, n = 8: (1,8-DIO)PbCl4, n = 9: (1,9-DIN)PbCl4, n = 10: (1,10-DID)PbCl4, n = 11: (1,11-DIU)PbCl4) and investigated their photoluminescence and scintillation characteristics. A broad band peak that should be attributed to self-trapped excitons (STEs) were observed at 555 nm ((1,6-DHX)PbCl4), 520 nm ((1,7-DHP)PbCl4), 525 nm ((1,8-DIO)PbCl4), 525 nm ((1,9-DIN)PbCl4), 550 nm ((1,10-DID)PbCl4), and 530 nm ((1,11-DIU)PbCl4) in scintillation. Also, they showed a scintillation decay time of 2.2 ns ((1,6-DHX)PbCl4), 3.0 ns ((1,7-DHP)PbCl4), 2.8 ns ((1,8-DIO)PbCl4), 5.6 ns ((1,9-DIN)PbCl4), 3.5 ns ((1,10-DID)PbCl4), and 4.7 ns ((1,11-DIU)PbCl4) due to the STE recombination. Further, the scintillation light yield of the (1,9-DIN)PbCl4 crystal was the highest (1,200 photons/5.5 MeV-alpha), and its value was higher than that of an undoped zinc oxide crystal.

引用

页数：8

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