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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Silver cluster formation in ion-exchanged waveguides: processing technique and phenomenological model
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Silver cluster formation in ion-exchanged waveguides: processing technique and phenomenological model

机译：离子交换波导中银团的形成：处理技术和现象学模型

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摘要

Silver-containing light waveguides, formed by ion-exchange process in glasses containing alkali oxides, were annealed in hydrogen atmosphere at temperatures in the range 150-250 deg C. The processing technique causes silver atom precipitation to form nanometer-size clusters with approx 2-10 nm distribution in sizes and a spatial distribution. The composites were measured by transmission electron microscopy, optical spectroscopies, m-lines technique, Rutherford backscattering energies, elastic recoil detection analysis and secondary ion mass spectrometry. The nano-sized cluster formation, accompanied by silver and sodium interdiffusion processes, after hydrogen permeation in the matrix, is not simply ascribed to a direct interaction with hydrogen, but to a more complex process involving a charge balancing mechanism during ion transport phenomena. Such a process is discussed in terms of a phenomenological model. Nonlinear refractive indices of some samples were measured.
机译：通过离子交换工艺在含碱金属氧化物的玻璃中形成的含银光波导在氢气氛中于150-250℃的温度范围内退火。该处理技术使银原子沉淀形成纳米级簇，其簇密度约为2大小和空间分布为-10 nm。通过透射电子显微镜，光谱学，m-线技术，卢瑟福背散射能量，弹性反冲检测分析和二次离子质谱法测量复合材料。在氢渗透到基体中之后，伴随着银和钠互扩散过程的纳米级簇形成，不仅仅归因于与氢的直接相互作用，而是归因于更复杂的过程，该过程涉及离子迁移现象中的电荷平衡机制。根据现象学模型讨论了这种过程。测量了一些样品的非线性折射率。

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