Premium
Enhanced Up‐Conversion Luminescence in Er 3+ ‐Doped 25 GeS 2 ·35 Ga 2 S 3 ·40 CsCl Chalcogenide Glass–Ceramics
Author(s) -
Lin Changgui,
Calvez Laurent,
Li Zhuobin,
Dai Shixun,
Tao Haizheng,
Ma Hongli,
Zhang Xianghua,
Moine Bernard,
Zhao Xiujian
Publication year - 2013
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.12102
Subject(s) - luminescence , chalcogenide glass , crystallization , materials science , raman spectroscopy , chalcogenide , electron paramagnetic resonance , doping , mineralogy , analytical chemistry (journal) , chemical engineering , chemistry , optoelectronics , optics , nuclear magnetic resonance , physics , chromatography , engineering
Enhanced luminescence in rare‐earth‐doped chalcogenide glass–ceramics is of great interest for the potential integrated optoelectronic devices. However, fundamental mechanism on the enhancement of luminescence upon crystallization remains largely unknown. We report the fabrication and characterization of wide transmission chalcogenide glass and glass–ceramics based on the 25 GeS 2 ·35 Ga 2 S 3 ·40 CsCl :0.3 Er glass composition, and discuss the mechanism of enhanced luminescence. By monitoring the 4 I 9/2 – 4 I 15/2 of Er 3+ transition, up‐conversion luminescence of 12 times higher was observed in glass–ceramics compared with that in base glass. Electron paramagnetic resonance (EPR) and Raman scattering spectroscopies were employed to obtain the information of selective environment of Er 3+ ions and microstructural evolution with the crystallization progress. Both of them evidenced that the enhanced up‐conversion luminescence was mainly related to the local environmental evolution from a mixed chlorine‐sulfur coordination to a low phonon energy chlorine coordination in the residual glassy matrix of glass–ceramics.