CsCl Modified Ge–Ga–S Glasses Codoped with Eu 2+  and Mn 2+ : A Potential Yellow Phosphor for Solid‐State Lighting | Zendy

Yan Qiqi | Zendy; Ren Jing | Zendy; Chen Guorong | Zendy

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CsCl Modified Ge–Ga–S Glasses Codoped with Eu 2+ and Mn 2+ : A Potential Yellow Phosphor for Solid‐State Lighting

Author(s) -

Yan Qiqi,

Ren Jing,

Chen Guorong

Publication year - 2012

Publication title -

journal of the american ceramic society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.9

H-Index - 196

eISSN - 1551-2916

pISSN - 0002-7820

DOI - 10.1111/jace.12031

Subject(s) - phosphor , luminescence , excitation , doping , energy transfer , analytical chemistry (journal) , materials science , ultraviolet , manganese , atomic physics , chemistry , optoelectronics , physics , metallurgy , quantum mechanics , chromatography

Notably enhanced Mn 2+ yellow emission is observed in CsCl modified and Eu 2+ / Mn 2+ codoped Ge – Ga – S glasses under near‐ultraviolet ( NUV ) excitation. The plausible efficiency of energy transfer ( ET ) from Eu 2+ to Mn 2+ is as high as 91%, which is obtained by measurement of luminescence decay of Eu 2+ in samples doped with and without Mn 2+ . The Eu 2+ / Mn 2+ codoping significantly increases the excitation cross section at the NUV region, which is at heart of the enhanced Mn 2+ yellow emission. The ET processes responsible for the enhanced luminescence are discussed.

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