Genetic patterns of Zn₂GeO₄ coated ZnO nanowires from phase texture distribution of biphase brass substrate

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• 作者：Yiqing Chen ; Lizhu Liu ; Xinhua Zhang ; Taibo Guo ; Chong Jia ; Yong Su ; Qiang Li ; Meiqin Wei
• 关键词：A1. Substrates ; A2. Growth from vapor ; A3. Physical vapor deposition processes ; B1. Nanomaterials ; B2. Semiconducting materials
• 刊名：Journal of Crystal Growth
• 出版年：2010
• 出版时间：1 August 2010-15 August 2010
• 年：2010
• 卷：312
• 期：16-17
• 页码：2479-2483
• 全文大小：1287 K

文摘

Based on the natural patterns of phase texture distribution of (α+β) biphase brass substrate, we synthesize the patterned quasi-aligned Zn₂GeO₄ coated ZnO nanowires by one-step thermal evaporation of the mixture powders of GeO₂ and C, and characterize the products by means of X-ray diffraction, field emission scanning electron microscopy, high-resolution transmission electron microscopy, optical microscopy and photoluminescence spectroscopy. It is observed that following the self-catalyzed effect of the Zn clusters, quasi-aligned Zn₂GeO₄ coated ZnO nanowires grow site-selectively on the surface of island-shaped α phase and form novel patterns which inherit the distribution of α phase on the substrate. According to the pattern and feature of phase texture distribution of the alloy substrate, we can synthesize the patterned nanowires arrays with controlled location and distribution in a more effective way.