无机材料学报2011，Vol.26Issue(8)：836-840,5.DOI:10.3724/SP.J.1077.2011.00836
OH-对Er3+掺杂Ge-Ga-S-CsI玻璃中红外荧光特性的影响
Effect of OH Content on Mid-infrared Emission Properties in Er3+-doped Ge-Ga-S-CsI Glasses
摘要
Abstract
A series of Er3+-doped chalcogenide glasses based on Ge-Ga-S-CsI system were prepared by melt-quenching technique with distillation processing. Properties including refractive index, infrared transmission spectra, 2.85μm mid-infrared emission spectra and fluorescence lifetime under 800 nm laser excitation were measured. The infrared absorption coefficients of OH- groups at 3μm according to the infrared transmission spectra were calculated, and the constant Koh-er, determined by the strength of interactions between Er3+ ions and OH- groups in the case of energy transfer was also calculated. The effect of hydroxyl content on mid-infrared emission properties of glass samples was discussed. The results show that the remnants OFT content of glass samples can be effectively reduced by the distillation processing. The 2.85μm mid-infrared fluorescence emission intensity and fluorescence lifetime of Er3+ ions are also enhanced. The calculated constant Koh-er is about 1.08 × l0-16cm4/s. Because of the efficiency of energy transfer between Er3+ ions and OH- groups, the remnants of a small amount of OH- groups can still directly affect the intensity of 2.85μm fluorescence.关键词
OH-/Er离子/中红外荧光/硫系玻璃Key words
hydroxyl ion/erbium/mid-infrared luminescence/chalcogenide glass分类
化学工程引用本文复制引用
孙杰,聂秋华,戴世勋,吴礼刚,宋宝安,陈飞飞,王国祥,徐铁峰..OH-对Er3+掺杂Ge-Ga-S-CsI玻璃中红外荧光特性的影响[J].无机材料学报,2011,26(8):836-840,5.基金项目
国家自然科学基金(60878042,60978058) （60878042,60978058）
浙江省杰出青年基金(R1101263) （R1101263）
宁波市科技创新团队项目(2009B21007) （2009B21007）
宁波大学王宽诚幸福基金 （）
