Research on structure and mid-infrared photoluminescence of Ga3+/Er3+ co-doped As-S glasses

Research on structure and mid-infrared photoluminescence of Ga3+/Er3+ co-doped As-S glasses
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Ga3/Er3共掺As-S玻璃的结构及中红外光致发光研究

DOI:
10.1016/j.jnoncrysol.2017.07.002
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发表时间:
2017-09
影响因子:
3.5
通讯作者:
Dai Shixun
Dai Shixun
中科院分区:
材料科学2区
文献类型:
--
作者:
Huang Yan;Liu Zijun;Chen Hua;Bian Junyi;Zhang Xianghua;Wang Xunsi;Dai Shixun

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在本研究中,通过添加 Ga 作为 Er3 + 离子的主体而制备了一系列 Ga-As-S 玻璃,并对其进行了表征。通过拉曼散射、X射线衍射和荧光光谱研究了Ga的引入对结构变化和Er3+中红外发射强度的影响。结果表明,将 Ga 掺入 As2S3 玻璃中会引起 [AsS3/2] 金字塔单元的解离,从而形成四面体 [GaS4/2]。通过调节 Ga 含量,该主体可以掺杂高达 2 mol% Er3 +,而不会产生结晶和浓度猝灭效应。此外,该体系具有很好的热稳定性(ΔT > 230 °C)和以4700 nm为中心的强宽带中红外发射,表明该体系具有用作中红外光纤材料的潜力。
In this study, a series of Ga-As-S glasses tailored by adding Ga as the host for Er3 +ions were prepared and characterized. The effects of the introduction of Ga on the structure change and the Er3 +middle infrared emission intensity have been studied by Raman scattering, X-ray diffraction and fluorescence spectra. The results show the incorporating of Ga into the As2S3glass induced the dissociation of [AsS3/2] pyramids units in behalf of forming tetrahedral [GaS4/2]. By adjusting the Ga content, this host can be doped up to 2 mol% Er3 +without crystallization and concentration quenching effect. Besides, this system has very good thermal stability (ΔT > 230 °C) and strong broadband mid-infrared emission centered at 4700 nm, suggests that this system has the potential to be used as mid-infrared fiber material.
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