Self-Assembled Growth of Tail-Like Cluster Composed of Flower-Shaped ZnO Microwires by Chemical Vapor Deposition Method

Abstract:

A self-assembled ZnO tail-like cluster (TC) had been successfully synthesized by a simple chemical vapor deposition method. Scanning electron microscopy observations show that ZnO TC is composed of bushy ZnO microwires with flower-shaped cross sections. Long and narrow furrows can be clearly observed on the surface of the ZnO TC. A possible growth model is proposed to discuss the formation mechanism. The analytical result indicates that the flower-shaped ZnO microwires are formed by the lateral coalescence of ZnO wires at high temperature. The room temperature PL spectrum shows a prominent UV emission band around 380 nm, and no green emission is found, implying that the unique flower-shaped ZnO microwires have high optical quality. This controlled growth of ZnO TC may have implication for potential applications in novel optoelectronic micro/nanodevices in the near future.

• Periodical: Solid State Phenomena (Volume 279)
• Pages: 202-207
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.279.202
• Online since: August 2018
• Authors: De Chao Yang, Yu Qiu*, Bo Wu, Jing Qian Luo, Zhi Yu Huang, Jin Yu Li, Wen Bin Song, Yang Zong
• Keywords: Cluster, Coalescence, Flower-Shaped, ZNO

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