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Updated: Jun 3, 2026
Low-energy Cathodoluminescence for (Oxy)Nitride Phosphors
Published on: November 15, 2016
Efficient near-infrared emission from neodymium by broadband sensitization of bismuth in zeolites
Zhenhua Bai1, Minoru Fujii, Yuki Mori
1Department of Electrical and Electronic Engineering, Graduate School of Engineering, Kobe University, Nada, Kobe, Japan.
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 Nd(3+) ions is significantly enhanced by the introduction of bismuth in codoped samples, and the lifetime reaches 246 μs. It is also observed that NIR-active Bi acts as a sensitizer of Nd(3+) ions. The energy transfer efficiency is also estimated. The peculiar optical properties make Nd-Bi codoped zeolites promising for potential application in biological probes.
