Enhanced Up‐Conversion Luminescence in Er3+‐Doped 25GeS2·35Ga2S3·40CsCl Chalcogenide Glass–Ceramics

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 25GeS2·35Ga2S3·40CsCl:0.3Er glass composition, and discuss the mechanism of enhanced luminescence. By monitoring the 4I9/2–4I15/2 of Er3+ 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 Er3+ 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.

[1]  Mathieu Allix,et al.  Upconversion luminescence of transparent Er3+-doped chalcohalide glass–ceramics , 2009 .

[2]  W. J. Chung,et al.  Compositional effects on fluorescence lifetime of Dy3+ ions embedded in chalcogenide Ge–As–S glasses containing very small amount of Ga and CsBr , 2009 .

[3]  Alessandro Chiasera,et al.  Enhanced fluorescence from Eu3+ in low-loss silica glass-ceramic waveguides with high SnO2 content , 2008 .

[4]  G. Dantelle,et al.  EPR and optical studies of erbium-doped beta-PbF2 single-crystals and nanocrystals in transparent glass-ceramics. , 2007, Physical chemistry chemical physics : PCCP.

[5]  Jean-Luc Adam,et al.  Bright Red Upconversion Luminescence of Thulium Ion-Doped GeS2−In2S3−CsI Glasses , 2009 .

[6]  Zhao Xiu-jian,et al.  Raman scattering studies of the GeS2–Ga2S3–CsCl glassy system , 2005 .

[7]  Virginie Nazabal,et al.  Preparation and luminescence of new Nd3+ doped chloro-sulphide glass–ceramics , 2006 .

[8]  Y. Ohishi,et al.  Optical amplification with neodymium-doped chalcogenide glass fiber , 1997 .

[9]  T. Wágner,et al.  Optical and DC-electric poling on AgX (X = Cl, I)-Doped chalcohalide glasses , 2008 .

[10]  W. J. Chung,et al.  Spectroscopic Properties and Local Structure of Eu3+ in Ge–Ga–S–CsBr (or CsCl) Glasses , 2003 .

[11]  G. Dantelle,et al.  EPR and optical study of Yb3+-doped β-PbF2 single crystals and nanocrystals of glass-ceramics , 2006 .

[12]  J. Heo.  Emission and local structure of rare-earth ions in chalcogenide glasses , 2007 .

[13]  V. B. Smirnov,et al.  Er3+ to glass matrix energy transfer in Ga–Ge–S:Er3+ system , 2002 .

[14]  Slawomir Sujecki,et al.  Progress in rare-earth-doped mid-infrared fiber lasers. , 2010, Optics express.

[15]  D. L. Dexter,et al.  Phonon Sidebands, Multiphonon Relaxation of Excited States, and Phonon-Assisted Energy Transfer between Ions in Solids , 1970 .

[16]  Xiaoyong Huang,et al.  Recent progress in quantum cutting phosphors , 2010 .

[17]  Yannick Ledemi,et al.  Structural investigations of glass ceramics in the Ga(2)S(3)-GeS(2)-CsCl system. , 2009, The journal of physical chemistry. B.

[18]  Chao Liu,et al.  Mechanism of the enhancement of mid-infrared emission from GeS2-Ga2S3 chalcogenide glass-ceramics doped with Tm3+ , 2012 .