Efficient near-infrared emission from neodymium by broadband sensitization of bismuth in zeolites

被引：3
|
作者：
Bai, Zhenhua [1 ]
Fujii, Minoru [1 ]
Mori, Yuki [2 ]
Miwa, Yuji [1 ]
Mizuhata, Minoru [2 ]
Sun, Hong-Tao [3 ]
Hayashi, Shinji [1 ]
机构：
[1] Kobe Univ, Dept Elect & Elect Engn, Grad Sch Engn, Nada Ku, Kobe, Hyogo 6578501, Japan
[2] Kobe Univ, Dept Chem Sci & Engn, Grad Sch Engn, Nada Ku, Kobe, Hyogo 6578501, Japan
[3] NIMS, ICYS, Tsukuba, Ibaraki 3050047, Japan
来源：
OPTICS LETTERS | 2011年 / 36卷 / 06期
关键词：
LUMINESCENCE;
D O I：
10.1364/OL.36.001017
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Nd-Bi codoped zeolites were prepared by an ion-exchange process, and the optical properties were investigated by photoluminescence (PL) and PL excitation spectra, and decay time measurements. The results show that the NIR emission of Nd3+ ions is significantly enhanced by the introduction of bismuth in codoped samples, and the lifetime reaches 246 mu s. It is also observed that NIR-active Bi acts as a sensitizer of Nd3+ ions. The energy transfer efficiency is also estimated. The peculiar optical properties make Nd-Bi codoped zeolites promising for potential application in biological probes. (C) 2011 Optical Society of America
引用
收藏
页码：1017 / 1019
页数：3
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