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首页> 外文期刊>Journal of Crystal Growth >Heat-activated structural evolution of sol-gel-derived ZnO thin films
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Heat-activated structural evolution of sol-gel-derived ZnO thin films

机译：溶胶-凝胶衍生的ZnO薄膜的热活化结构演化

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摘要

Zinc oxide (ZnO) thin films were prepared by a sol-gel dip coating process. The present work focuses on the crystallization behavior of these films during heating. In particular, the cases of (a) change of heating temperature and (b) change of heating time are studied. The characterization of the films by various analytical methods shows a correlation between heating temperature and film structure. At lower heating temperatures, granular structure dominates the films, while the films feature a columnar grain growth at higher-heating temperatures. The transition from granular to columnar structure is studied by the variation of heating times at a fixed-heating temperature. The evolution mechanism of the micro structure has been discussed in terms of continuous growth of the grains aided by an enhanced diffusion process.
机译：通过溶胶-凝胶浸涂工艺制备氧化锌（ZnO）薄膜。目前的工作集中在加热过程中这些薄膜的结晶行为。特别地，研究了（a）加热温度变化和（b）加热时间变化的情况。通过各种分析方法对薄膜进行表征表明加热温度与薄膜结构之间存在相关性。在较低的加热温度下，颗粒状结构占主导地位，而在较高的加热温度下，膜呈柱状晶粒长大。通过在固定加热温度下加热时间的变化研究了从粒状到柱状结构的转变。微观结构的演化机理已经通过增强的扩散过程辅助晶粒的连续生长进行了讨论。

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