Combined White Luminescence from Eu3+, MLAg Particles and Ag+ in AgEu3+ Co‐Doped H3BO3BaF2 Glasses

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Abstract:

Luminescent properties of Ag–Eu3+ co‐doped 80H3BO3–20BaF2 glasses prepared by melt‐quenching technique at relatively low temperature (1000°C) were characterized by absorption, excitation, emission spectra, and lifetime measurements systematically. A white emission (X = 0.373, Y = 0.334) has emerged by combining red, green, and blue emissions that originated from Eu3+, very small molecule‐like, nonplamonic Ag particles (MLAg) and Ag+, respectively. Under nonresonant excitation (310–370 nm), Eu3+ emission was enhanced significantly by 60 times. Our results suggest that Ag–Eu3+ co‐doped H3BO3BaF2 glasses could be potentially applied as white phosphors in white light emitting diodes.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1551-2916.2012.05112.x

Publication date: April 1, 2012

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