Eu-doped Ca2SiO4 as a New Radio-photoluminescence Phosphor

被引：31

作者：

Asada, Shota ^{[1
]}

Okada, Go ^{[1
]}

Kato, Takumi ^{[1
]}

Nakamura, Fumiya ^{[1
]}

Kawano, Naoki ^{[1
]}

Kawaguchi, Noriaki ^{[1
]}

Yanagida, Takayuki ^{[1
]}

机构：

[1] Nara Inst Sci & Technol NAIST, 8916-5 Takayama Cho, Nara 6300192, Japan

来源：

CHEMISTRY LETTERS | 2018年 / 47卷 / 01期

基金：

日本科学技术振兴机构;

关键词：

Radio-photoluminescence phosphor; Ca2SiO4; ceramics; Eu-doped; RPL MATERIAL; DOSIMETRY; CRYSTAL; GLASSES;

D O I：

10.1246/cl.170940

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Eu-doped Ca2SiO4 ceramics have been newly found to show radio-photoluminescence (RPL). An as-prepared material shows photoluminescence (PL) only due to Eu3+ whereas an additional broad emission due to Eu2+ appears in the red region as a result of RPL after X-ray irradiation. The RPL is attributed to the intravalence conversion of the Eu ion (Eu3+ -> Eu2+), and this response can be detected as low as 10 mGy of X-ray dose.

引用

页码：59 / 61

页数：3

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