Dy3+ doped tellurium-borate glass phosphors for laser-driven white illumination

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)70-78
Journal / PublicationJournal of Luminescence
Volume206
Online published12 Oct 2018
Publication statusPublished - Feb 2019

Abstract

Dy3+ doped multi-component tellurium-borate (MTB) glasses are identified to be an effective phosphor for laser-driven white illumination. Quantitative characterization of absolute spectrum parameter reveals that 2.0 wt% Dy2O3 doped MTB glass processes excellent quantum yield as high as 14.42%. The color parameters of white fluorescence are effectively emendated by adjusting the sample size and the pumping power when the preferred doping concentration is determined. The chromaticity parameters including luminous flux, color coordinate and correlated color temperature in 5.48 × 2.28 × 2.11 cm3 bulk glass phosphor are derived to 3.21 lm, (0.350, 0.331) and 4719 K closed to the pure-white fluorescence when the excitation power is enhanced to 252.7 mW. Effective white fluorescence depended on controllable photon distribution demonstrates that Dy3+ doped MTB glasses have promising application in developing laser-driven white light sources.

Research Area(s)

  • Dy3+ ions, Laser-driven illumination, Tellurium-borate glasses, White lighting

Citation Format(s)

Dy3+ doped tellurium-borate glass phosphors for laser-driven white illumination. / Li, Bingrui; Li, Desheng; Pun, Edwin Yue Bun et al.

In: Journal of Luminescence, Vol. 206, 02.2019, p. 70-78.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review