Luminescence properties of Eu2+/Dy3+ co-doped high silica glass for white LED

Lei Jin; Weimin Chen; Xiaohua Lei; Xianming Liu; Linjiao Ren; Wentao Cai

doi:10.1117/12.907219

28 November 2011 Luminescence properties of Eu²⁺/Dy³⁺ co-doped high silica glass for white LED

Lei Jin, Weimin Chen, Xiaohua Lei, Xianming Liu, Linjiao Ren, Wentao Cai

Proceedings Volume 8202, 2011 International Conference on Optical Instruments and Technology: Solid State Lighting and Display Technologies, Holography, Speckle Pattern Interferometry, and Micro/Nano Manufacturing and Metrology; 820204 (2011) https://doi.org/10.1117/12.907219
Event: International Conference on Optical Instruments and Technology (OIT2011), 2011, Beijing, Beijing, China

Abstract

The Eu²⁺ and Dy³⁺ co-doped luminescence high silica glass was prepared by combining porous glass preparation and sintering process. The emission spectra and excitation spectra of luminescence glasses were measured. With the excitation of ultraviolet (UV) wavelength of 365nm, there were two emission bands with central wavelength 480nm and 573nm in spectra of samples which presented the near white light luminescence. The energy transfer process from Dy³⁺ to Eu²⁺ and concentration quench process of Eu²⁺ in samples were demonstrated by comparing the relative spectral intensity of emission spectra and excitation spectra. This type of glass might be an adoptable candidate for white LED through an appropriate UV chip excitation.

Citation Download Citation

Lei Jin, Weimin Chen, Xiaohua Lei, Xianming Liu, Linjiao Ren, and Wentao Cai "Luminescence properties of Eu²⁺/Dy³⁺ co-doped high silica glass for white LED", Proc. SPIE 8202, 2011 International Conference on Optical Instruments and Technology: Solid State Lighting and Display Technologies, Holography, Speckle Pattern Interferometry, and Micro/Nano Manufacturing and Metrology, 820204 (28 November 2011); https://doi.org/10.1117/12.907219

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KEYWORDS

Glasses

Luminescence

Ions

Silica

Light emitting diodes

Ultraviolet radiation

Energy transfer

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