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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Surface morphology and domain structure during the evolution of ZnO nanorods into films
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Surface morphology and domain structure during the evolution of ZnO nanorods into films

机译：ZnO纳米棒向薄膜演化过程中的表面形态和畴结构

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摘要

We investigated the effects of growth temperature on the surface morphology and domain structure of ZnO nanorods and films grown on Al2O3 (0 0 0 1) substrates in a temperature range of T-g = 180-330 degrees C by metal-organic chemical vapour deposition. As the growth temperature decreased, ZnO nanorods having a sharp tip changed into ZnO films with a faceted surface morphology. The ZnO films grown at a lower growth temperature (e.g. T-g <= 240 degrees C) consisted of two domains with different in-plane orientations, while 30 degrees-twist ZnO domains became dominant for higher growth temperature (e. g. T-g >= 280 degrees C) to reduce the lattice mismatch. It was found that the inclination angle of the side facet observed in the surface of the ZnO layers was determined by the surface area of several facets such as (0 1 (1) over bar 3)(ZnO), (0 1 (1) over bar 2)(ZnO) and (0 1 (1) over bar 0)(ZnO) planes. A detailed discussion regarding the effects of growth temperature on the growth behaviour and evolution of ZnO layers is presented in this work.
机译：我们研究了温度对通过金属有机化学气相沉积在T-g = 180-330摄氏度范围内的Al2O3（0 0 0 1）衬底上生长的ZnO纳米棒和薄膜的表面形态和畴结构的影响。随着生长温度的降低，尖锐的ZnO纳米棒变成具有多面表面形态的ZnO膜。在较低的生长温度（例如，Tg <= 240摄氏度）下生长的ZnO薄膜由两个面内取向不同的畴组成，而在较高的生长温度下（例如，Tg> = 280摄氏度），30度扭曲的ZnO畴占主导地位），以减少晶格失配。发现在ZnO层的表面中观察到的侧面的倾斜角由诸如（0 1（1）在条3上）（ZnO），（0 1（1）在条2）（ZnO）上和（条0）（ZnO）平面上的（0 1（1）上。在这项工作中提出了有关生长温度对ZnO层的生长行为和演变的影响的详细讨论。

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