Abstract
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 ions is significantly enhanced by the introduction of bismuth in codoped samples, and the lifetime reaches . It is also observed that NIR-active Bi acts as a sensitizer of ions. The energy transfer efficiency is also estimated. The peculiar optical properties make Nd-Bi codoped zeolites promising for potential application in biological probes.
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
Zhenhua Bai, Hong-Tao Sun, Takashi Hasegawa, Minoru Fujii, Fumiaki Shimaoka, Yuji Miwa, Minoru Mizuhata, and Shinji Hayashi
Opt. Lett. 35(11) 1926-1928 (2010)
Yuji Miwa, Hong-Tao Sun, Kenji Imakita, Minoru Fujii, Yu Teng, Jianrong Qiu, Yoshio Sakka, and Shinji Hayashi
Opt. Lett. 36(21) 4221-4223 (2011)
Hong-Tao Sun, Takashi Hasegawa, Minoru Fujii, Fumiaki Shimaoka, Zhenhua Bai, Minoru Mizuhata, Shinji Hayashi, and Shigehito Deki
Opt. Express 17(8) 6239-6244 (2009)