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Luminescence properties of red‐emission Mg 4 Nb 2 O 9 :Eu 3+ phosphor
Author(s) -
Cao Renping,
Cao Chunyan,
Yu Xiaoguang,
Qiu Jianrong
Publication year - 2015
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.2711
Subject(s) - phosphor , chromaticity , luminescence , excited state , light emitting diode , materials science , analytical chemistry (journal) , ion , crystal structure , optoelectronics , chemistry , optics , crystallography , atomic physics , physics , organic chemistry , chromatography
Red‐emitting Mg 4 Nb 2 O 9 :Eu 3+ phosphor is synthesized via a solid‐state reaction method in air, and its crystal structure and luminescence are investigated. The phosphor can be excited efficiently by ~ 395 nm light, coupled well with a ~ 395 nm near‐ultraviolet chip and emits red light at ~ 613 nm with sharp spectra due to 5 D 0 → 7 F 2 transition of the Eu 3+ ion. Mg 4 Nb 2 O 9 :Eu 3+ phosphor sintered at 1350 ºC shows Commission international de I'Eclairage (CIE) chromaticity coordinates of x = 0.6354, y = 0.3592, and is a potential red‐emitting phosphor candidate for white light‐emitting diodes (W‐LEDs) under ~ 395 nm near‐ultraviolet LED chip excitation. Copyright © 2014 John Wiley & Sons, Ltd.