红外玻璃陶瓷的力学性能

在一定的温度和时间下对GeS2-Sb2S3-CsCl系红外玻璃进行微晶化处理,制备了新型的红外透明玻璃陶瓷.测定了微晶玻璃的力学性能和光学性能,研究了微晶化处理条件对微晶玻璃的力学性能和光学性能的影响.研究结果表明,玻璃基体中析出微晶晶体,使材料的断裂韧性和裂纹初始应力显著增大,但这种增大效应取决于析晶相的种类和晶体尺寸.为了保持微晶玻璃的红外透明性,析出的晶体尺寸应小于100nm.     

透明微晶玻璃的研究现状与展望

透明微晶玻璃是一种具有优良热、力、光及化学性能的新型功能材料,在国防尖端技术、微电子技术和化学化工等领域有着广阔的应用前景.介绍了透明微晶玻璃的光学原理、制备条件、主要组成体系及其制备工艺、应用领域,并展望了透明微晶玻璃的发展前景.     

溶胶－凝胶法在激光及非线性光功能材料上的应用

综述用溶胶－凝胶法制得的凝胶玻璃以及有机改性硅酸盐（Ｏｒｍｏｓｉｌ）作为光功能基质材料在半导体微晶量子点掺杂、有机染料掺杂以及稀土离子掺杂方面的应用，并结合作者近期的工作讨论了其在非线性光学、固态连续可调激光器、固态激光对撞锁模以及激光玻璃方面的应用和发展．     

Ce3+掺杂闪烁玻璃的研究进展

闪烁玻璃由于制备工艺简单,尺寸灵活可控,成本低廉等优点,有望成为中国环形正负电子对撞机(CEPC)中强子量能器的候选材料。其中,以Ce³⁺发光中心掺杂闪烁玻璃有较好的闪烁性能。玻璃基质可以分为氧化物玻璃、卤化物玻璃和微晶玻璃。本文根据Ce³⁺掺杂不同玻璃基质分类,重点关注了Ce³⁺掺杂闪烁玻璃的光学透过率、光产额、衰减时间等闪烁性能和抗辐照特性。并且,总结了国内外以及闪烁玻璃合作组的最新研究成果。针对不同玻璃体系的研究现状,从玻璃组成与制备工艺等两个方面探讨了玻璃性能提升手段。最后,对Ce³⁺掺杂闪烁玻璃未来的研究发展方向做出了展望。     

硫硒化镉微晶玻璃制备和非线性光学性质研究

具有明显量子尺寸效应和较大三阶非线性光学效应的CdSxSe1-x(O相似文献   

碘化亚铜微晶掺杂硼硅酸盐玻璃的制备及其电致二阶非线性光学效应

采用可分相的Na2－Al2O3－B2O3－SiO2系为基础玻璃，以CuO／SnO、NaI为原料；分别引入Cu 、I－，成功地制备出CuI微晶掺杂硼硅酸盐玻璃·通过X射线粉末衍射（XRD）和高分辨透射电镜（HRTEM）分析观察到了玻璃中的晶相及其分布；由玻璃的室温透射光谱研究了玻璃的热处理条件与光吸收性的关系．首次报道了该半导体微晶掺杂玻璃中的电致二次谐波发生，并讨论了该效应的机理．     

溶胶—凝胶法在激光及非线性光功能材料上的应用

综述用溶胶－凝胶法制得的凝胶玻璃以及有机改性硅酸盐（Ｏｒｍｏｓｉｌ）作为光功能基质材料在半导体微晶量子点掺发、极机染料掺杂以及稀土离子掺杂方面的应用，并结合作者近期的工作讨论了其在非线性光学、固态连续可调激光器、固态激光对掸锁模以及激光玻璃方面的应用和发展。     

70GeS_2-15Ga_2S_3-15Ag_2S硫系微晶玻璃的制备及其光学、物理性能(英文)

利用传统的融熔-淬冷技术制备了70GeS2-15Ga2S3-15Ag2S硫系玻璃,并通过析晶处理成功地制得了含优异非线性光学晶体AgGaGeS4的硫系微晶玻璃。线性光学性能和维氏硬度研究表明该材料适于作为中红外光学材料应用。麦克条纹测试(Maker fringe)表明该微晶玻璃有着良好的二阶非线性光学性能。该硫系微晶玻璃是一种新型的中红外光学频率变换用候选材料。     

锂离子玻璃及微晶玻璃固体电解质的发展及应用

综述了锂离子氧化物、硫化物玻璃及微晶玻璃固体电解质的研究进展.重点讨论了这些材料的电化学性能,以及离子掺杂对电化学性能的影响.探讨了锂离子玻璃和微晶玻璃固体电解质的发展及应用前景,认为其在全固态电池中的应用将随技术的发展实现商业化.     

La3+、Nd3+稀土离子掺杂对电路基板用锂铝硅微晶玻璃性能的影响

通过烧结法制备La3+和Nd3+掺杂的锂铝硅微晶玻璃,结合DSC、密度、热膨胀、SEM等检测技术研究了热处理和稀土离子掺杂对LAS微晶玻璃力学和电学性能的影响。结果表明:在640℃核化保温30min、940℃晶化保温2.5h可得到晶粒细小、力学强度和介电性能优良(ε=5.1～7.0,tanδ<0.005,10MHz),的微晶玻璃。同时稀土离子的加入产生的钉扎作用可以细化晶粒,进一步优化提高微晶玻璃的力学性能。     

碘化亚铜微晶掺杂硼硅酸盐玻璃的制备及其电致二阶非线性光学效应

采用可分相的Ｎａ２－Ａｌ２Ｏ３－Ｂ２Ｏ３－ＳｉＯ２系为基础玻璃，以ＣｕＯ／ＳｎＯ、ＮａＩ为原料，分别引入Ｃｕ＾＋、Ｉ＾－，成功地制备出ＣｕＩ微晶掺杂硼硅酸盐玻璃。通过Ｘ射线粉末衍射（ＸＲＤ）和高分辨透射电镜（ＨＲＴＥＭ）分析观察到了玻璃中的晶相及其分布；由玻璃的室温透射光谱研究了玻璃的热处理条件下光吸收性的关系。首次报道了该半导体微昌掺杂玻璃中的电致二次谱波发生，并讨论了该效应的机理。     

Potassium source for ion-exchange glass waveguide fabrication

We propose and demonstrate the use of a new potassium-ion source for glass waveguide fabrication based on a KI -ZnCl2 mixture. Planar waveguide were made using glasses such as BK7, Pyrex, soda lime, and commercial semiconductor doped glasses. The optical quality of the waveguides prepared compare favorably with the quality obtained using other fabrication techniques and the processing time is considerably reduced.     

玻璃中的非线性光学原理及材料

本文简要介绍了玻璃中产生非线性光学效应的基本原理及其应用,并介绍了均质玻璃、含有机化合物及含半导体量子点玻璃的非线性光学性能、应用前景和研究动态。     

Optical properties and potential applications of doped semiconductor nanoparticles

Recent studies on the optical properties, in particular, luminescence, of a variety of doped semiconductor nanoparticles are reviewed. The effects of quantum confinement, temperature and pressure on luminescent properties are discussed. In addition, electroluminescence, cathodoluminescence, magnetoluminescence and related applications involving doped semiconductor nanoparticles are presented. A new phenomenon, upconversion luminescence of doped nanoparticles, is reviewed and its potential applications are discussed. While more research efforts are necessary in order to fully understand the fundamentals and explore the great technological potential behind doped nanoparticles, recent results already show that this is a new and exciting field with applications in many areas. In particular, the emerging field of "spintronics", where spin states are exploited in analogy to conventional electronic states, is discussed and the advantages of using doped semiconductor nanoparticles are elucidated.     

Copper and copper selenide nanoparticles in the sol-gel matrices: Structural and optical

Recent results concerning structural and optical features of the sol-gel silica glasses with semiconductor (copper selenide) and metal (copper) nanoparticles are presented. The preparation procedure was elaborated as the flexible sequence to control chemical composition and properties of the particles in sol-gel-derived silica matrix. Structure and properties of materials were characterized with TEM, XRD and optical spectroscopy. The principal optical features of the glasses with copper nanoparticles are the plasmon resonance band. Copper selenide nanoparticles within the glasses reveal both semiconductor-like absorption band and the near-IR absorption.     

Cerium doped heavy metal fluoride glasses, a possible alternative for electromagnetic calorimetry

The article is an overview of the research activity made in the framework of the Crystal Clear Collaboration aimed at obtaining scintillating glasses able to fit the constraints imposed for the active medium of the central Electromagnetic Calorimeter at CMS. The manufacturing of heavy metal fluoride glasses doped with Ce³⁺ is discussed. The luminescence and scintillation characteristics as well as the radiation hardness properties are extensively studied in the case of Ce doped fluorohafnate, found to be the most convenient glass scintillator for high energy physics applications.     

Mechanism of hopping conduction in Be–Fe–Al–Te–O semiconducting glasses and glass–ceramics

Journal of Materials Science - Electrical properties of beryllium-alumino-tellurite glasses and glass–ceramics doped with iron ions were studied using impedance spectroscopy. The conductivity...     

Microstructures and Dielectric Properties of Ba1-xSrxTiO3 Ceramics Doped with B2O3-Li2O Glasses for LTCC Technology Applications

Ba1-xSrxTiO3 ceramics, doped with B2O3-Li2O glasses have been fabricated via a traditional ceramic process at a low sintering temperature of 900 ℃ using liquid-phase sintering aids. The microstructures and di- electric properties of B2O3-Li2O glasses doped Ba1-xSrxTiO3 ceramics have been investigated systemat- ically. The temperature dependence dielectric constant and loss reveals that B2O3-Li2O glasses doped Ba1-xSrxTiO3 ceramics have di?usion phase transformation characteristics. For 5 wt% B2O3-Li2O glasses doped Ba0.55Sr0.45TiO3 composites, the tunability is 15.4% under a dc-applied electric field of 30 kV/cm at 10 kHz; the dielectric loss can be controlled about 0.0025; and the Q value is 286. These composite ceramics sintered at low temperature with suitable dielectric constant, low dielectric loss, relatively high tunability and high Q value are promising candidates for multilayer low-temperature co-fired ceramics (LTCC) and potential microwave tunable devices applications.     

Size-controlled synthesis and optical properties of doped nanoparticles prepared by soft solution processing

In this review, we outline the synthesis and luminescence properties of metal-ion-incorporated doped nanoparticles and surface-passivated doped nanoparticles. The synthetic routes we describe are limited to those involving soft solution processing. The doping effects are discussed in this review on the semiconductor nanoparticles confining the size range near to the 'quantum dot size.' The effects on luminescence with respect to ionic valance of dopants and the luminescence phenomena on mismatching of ionic radii between the host-guest are also provided. In addition, we discuss the role of passivated organic surfactants and the necessity of surface passivation of doped or undoped nanoparticles with other semiconductor materials that possess larger band gaps. Biocompatible semiconductor nanoparticles and some of their applications are also mentioned briefly.