DEVELOPMENT,FUNCTIONS AND STRUCTURE OF SULFIDE GLASS SYSTEMS CONTAINING RARE-EARTH ELEMENTS

含稀土元素硫化玻璃系的开发、功能与结构

• 批准号: 09650923
• 负责人: KAWAMOTO Yoji
• 金额: $ 0.38万
• 依托单位: KOBE UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09650923/
• 关键词: SULFIDE GLASS; RARE EARTH ELEMENT; OPTICAL FUNCTION; GLASS STRUCTURE; GLASS FORMATION; 光学的機能

In this investigation, sulfide glass systems m which all of rare-earth elements can be incorporated are explored at first. As a result the Ga_2S_3-GeS_2-La_2S_3-Ln_2S_3 system glasses (Ln=yttrium or lanthanoids) were found. The glass structures were clarified by means of the X-ray radial distribution analysis, Raman spectral measurement, reverse Monte Carlo simulation and EXAFS analysis. Furthermore the characterization of the glasses were performed by measuring various physicochemical properties such as thermal behavior, refractive index, density and Vickers hardness. On the other hand, the optical properties of Er^<3+> in the Ga_2S_3-GeS_2-La_2S_3-Ln_2S_3 glasses were examined by the optical absorption, fluorescence lifetime and up-conversion luminescence measurements. Based on these spectroscopic data and the Judd-Ofelt theory, radiative transition probability, multiphonon relaxation rate, emission quantum efficiency and so on were evaluated. The Er^<3+> up-conversion characteristics of the present sulfide glass were compared with those of fluoride glasses to make clear the possibility of optically functional materials.

本研究首先探索了稀土元素均可掺入的硫化物玻璃体系。通过X射线径向分布分析、拉曼光谱测量、反向Monte Carlo模拟和EXAFS分析，确定了玻璃的结构。此外，通过测量各种物理化学性质如热行为、折射率、密度和维氏硬度来表征玻璃。另一方面，通过光学吸收、荧光寿命和上转换发光的测量，研究了Er^<3+>在Ga_2S_3-GeS_2-La_2S_3-Ln_2S_3玻璃中的光学性质。基于这些光谱数据和Judd-Ofelt理论，计算了辐射跃迁几率、多声子弛豫速率、发射量子效率等。比较了硫化物玻璃和氟化物玻璃的Er^<3+>上转换发光特性，阐明了其作为光学功能材料的可能性。

项目成果

X.Zhao, H.Higuchi and Y.Kawamoto: "Structural analysis of GeS_2 glass by means of reverse Monte Calro simulation" Phys.Chem.Glasses. 39. 98-100 (1998)

X.Zhao、H.Higuchi 和 Y.Kawamoto：“通过反向蒙特卡罗模拟对 GeS_2 玻璃进行结构分析”Phys.Chem.Glasses。

K.Kadono, H.Higuchi, M.Takahashi, Y.Kawamoto and H.Tanaka: "Upconversion luminescence of Ga_2S_3-based sulfide glasses containing Er^<3+> ions" J.Non-Crystalline Solids. 184. 309-313 (1995)

K.Kadono、H.Higuchi、M.Takahashi、Y.Kawamoto 和 H.Tanaka：“含有 Er^3 离子的 Ga_2S_3 基硫化物玻璃的上转换发光”J.Non-Crystalline Solids。

J.Qiu: "Faraday efect of GaS_<3/2>-GeS_2-LaS_<3/2>-based glasses containing various rare-earth ions" J.Appl.Phys.80. 5297-5300 (1996)

J.Qiu：“含有各种稀土离子的GaS_<3/2>-GeS_2-LaS_<3/2>基玻璃的法拉第效应”J.Appl.Phys.80。

H.Higuchi,R.Kanno,Y.Kawamoto.M.Takahashi and K.Kadono: "Local structure of of Er^<3+>-containing Ga_2S_3-GeS_2-La_2S_3 glass" Phys.Chem.Glasses. (To appear in April issue). (1999)

H.Higuchi，R.Kanno，Y.Kawamoto.M.Takahashi 和 K.Kadono：“含 Er^<3> 的 Ga_2S_3-GeS_2-La_2S_3 玻璃的局部结构”Phys.Chem.Glasses。

X.Zhao: "Structural analysis of GeS_2 glass by means of reverse Monte Carlo simulation" Phys.Chem.Glasses. 39. 98-100 (1998)

赵X：“利用反向蒙特卡罗模拟方法分析GeS_2玻璃的结构”Phys.Chem.Glasses。