title: Highly efficient near-infrared emission in Er3+ doped silica films containing size-tunable SnO2 nanocrystals.
abstract: Co-doping size-tunable SnO2 nanocrystals into Er(3+) ions embedded silica thin films produces an enhancement of Er-related near-infrared emission by three orders of magnitude. Selective PL and PLE measurements show that energy transfer process occurs between SnO2 nanocrystals and Er(3+) ions. Quantitative studies of PL decay lifetime and photoluminescence temperature-dependence demonstrate that both high energy transfer efficiency from SnO2 nanocrystals to Er(3+) ions and the partial incorporation of Er(3+) ions into SnO2 nanocrystals contribute to the near-infrared emission enhancement. All these results indicated that SnO2 nanocrystals with suitable size have great potentials in fabricating high-efficiency near-infrared luminous materials as sensitizers of Er(3+) ions.
authors: Xiaowei
authors: X
authors: Zhang
authors: Tao
authors: T
authors: Lin
authors: Pei
authors: P
authors: Zhang
authors: Jun
authors: J
authors: Xu
authors: Shaobing
authors: S
authors: Lin
authors: Ling
authors: L
authors: Xu
authors: Kunji
authors: K
authors: Chen
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D004871:Erbium / Q000737:chemistry*; D007259:Infrared Rays; D008029:Lighting / Q000295:instrumentation*; D008163:Luminescent Measurements / Q000295:instrumentation*; D008422:Materials Testing; D008567:Membranes, Artificial; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D012822:Silicon Dioxide / Q000737:chemistry; D017971:Tin Compounds / Q000737:chemistry*
chemical_list: D008567:Membranes, Artificial; D017971:Tin Compounds; D012822:Silicon Dioxide; D004871:Erbium; C045358:stannic oxide