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首页> 外文期刊>Applied Surface Science >Morphological, microstructural and optical properties supremacy of binary composite films - A study based on Gd2O3/SiO2 system
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Morphological, microstructural and optical properties supremacy of binary composite films - A study based on Gd2O3/SiO2 system

机译:二元复合薄膜的形貌,微观结构和光学性质至上-基于Gd2O3 / SiO2体系的研究

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摘要

Composites are pragmatic choices for tailoring the material to have a desired property. Besides, such thin films have scopes to display superior optical, microstructural and morphological properties which are otherwise not possible to obtain from the pure component films. Vapor-phase-mixed binary composite Gd2O3/SiO2 thin film is one such interesting system where band gap as well as refractive index superiority is observed simultaneously under certain compositional mixings. Such and similar observations in composites cannot be explained by Moss empirical rule. Our systematic study on the microstructure of this composite system based on ellipsometry and scanning probe microscopy has satisfactorily provided the information that can explain such optical properties supremacy. Morphological measurements and its derived parameters like autocorrelation and height-height correlation functions have provided several clues that represent the superior grain structures of the composites. Besides, refractive index modeling through effective single oscillator model has strongly supported such analysis results favoring the superior microstructure in composite films. (c) 2006 Elsevier B.V. All rights reserved.
机译:复合材料是使材料具有所需性能的实用选择。此外,这种薄膜具有显示出优异的光学,微结构和形态学性能的范围,而这些光学性能,微观结构和形态学性能否则就不可能从纯组分膜获得。汽相混合二元复合Gd2O3 / SiO2薄膜是这样一种有趣的系统,其中在某些成分混合下同时观察到带隙和折射率优越性。莫斯经验法则无法解释复合材料中的此类和类似观察结果。我们基于椭偏仪和扫描探针显微镜对这种复合体系的微观结构的系统研究令人满意地提供了可以解释这种光学特性至上的信息。形态学测量及其派生参数(例如自相关和高度-高度相关函数)提供了一些线索,这些线索代表了复合材料的优良晶粒结构。此外,通过有效的单振子模型进行的折射率建模已强有力地支持了这种分析结果,有利于复合膜的优异微观结构。 (c)2006 Elsevier B.V.保留所有权利。

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