In:
Journal of Materials Research, Springer Science and Business Media LLC, Vol. 28, No. 22 ( 2013-11-28), p. 3130-3136
Abstract:
A novel Ba 2 MgMoO 6 :Eu 3+ orange-red phosphor was synthesized by the Pechini method and characterized by x-ray diffraction. Photoluminescence properties of BaMgMoO 6 :Eu 3+ phosphors have been represented in the excitation and emission spectra. The charge transfer (CT) band of Ba 2 MgMoO 6 host is situated at near-ultraviolet (UV) region, whose central wave length and bandwidth are 394 and 80 nm, respectively. And it matches well the emission wave length from near-UV light emitting diodes (LEDs). The most intensive emission of 5 D 0 → 7 F 1 (598 nm) of Eu 3+ in Ba 2 MgMoO 6 :Eu 3+ is much narrow with a full width at half-maximum less than 2 nm under excitation with either CT band or 394 nm. And a low concentration quenching occurs in Ba 2 MgMoO 6 :Eu 3+ , and the optimal doping concentration is about 0.05. The mechanism of charge and energy transfer from Ba 2 MgMoO 6 host to Eu 3+ is proposed and analyzed on the basis of its crystal structure. In a word, Ba 2 MgMoO 6 :Eu 3+ may be a promising orange-red component for near UV white LEDs.
Type of Medium:
Online Resource
ISSN:
0884-2914
,
2044-5326
DOI:
10.1557/jmr.2013.311
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2013
detail.hit.zdb_id:
54876-5
detail.hit.zdb_id:
2015297-8
Permalink