Enhanced blue luminescence in BaMgAl10O17:Eu, Er, Nd nanophosphor for PDPs and Mercury free fluorescent lamps

被引：17

作者：

Yadav, Raghvendra S. ^{[1
]}

Shukla, Vineet K. ^{[1
]}

Mishra, Priya ^{[1
]}

Pandey, Shiv K. ^{[1
]}

Kumar, Kausal ^{[1
]}

Baranwal, Vikas ^{[1
]}

Kumar, Manvendra ^{[1
]}

Pandey, Avinash C. ^{[1
]}

机构：

[1] Univ Allahabad, Nanotechnol Applicat Ctr, Allahabad 211002, Uttar Pradesh, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 547卷

关键词：

Nanophosphors; PDPs; Energy transfer; Fluorescent lamps; PHOTOLUMINESCENCE CHARACTERISTICS; ENERGY-TRANSFER; PUMPED ER; PHOSPHOR;

D O I：

10.1016/j.jallcom.2012.08.107

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The Er3+/Nd3+ codoped BaMgAl10O17:Eu2+ phosphor nanoparticles have been synthesized through solution combustion method. Nanophosphor has shown intense broad blue photoluminescence (PL), corresponding to the 4f(6)5d -> 4f(7) electronic transition of Eu2+ ion under vacuum ultraviolet (147 nm) as well as UV (355 nm) excitations. An enhancement in blue emission of Eu2+ has been observed on the codoping of Er3+/Nd3+ ions and concentration of the doping ions have been optimized. Lifetime of the 4f(6)5d -> 4f(7) transition has been measured and discussed. The enhancement in emission intensity of codoped blue nanophosphor is explained by energy transfer from the Er3+/Nd3+ ions and created defect states to the Eu2+ in the BaMgAl10O17. This phosphor has also shown better emission intensity as compared to commercial blue phosphor under VUV excitation and thus making it attractive for the application in plasma display panels and mercury free-fluorescent lamps. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：1 / 4

页数：4

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