Flowerlike ZnO nanocones and nanowires: Preparation, structure, and luminescence

被引：83

作者：

Du, G. H.

Xu, F.

Yuan, Z. Y.

Van Tendeloo, G.

机构：

[1] Univ Antwerp, EMAT, B-2020 Antwerp, Belgium

[2] Univ Namur, FUNDP, Lab Inorg Mat Chem, B-5000 Namur, Belgium

[3] Nankai Univ, Coll Chem, Dept Chem Mat, Tianjin 300071, Peoples R China

[4] Univ Antwerp, EMAT, B-2020 Antwerp, Belgium

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 24期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2211007

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Flowerlike ZnO nanocone and nanowire arrays have been grown on a Zn foil via a solution-phase approach at low temperature. The tips of the nanocones are about 70-160 nm in diameter and their roots are as thick as 350 nm; the diameters of the nanowires are around 70-110 nm. Both the nanocones and nanowires grow preferentially along the [0001] direction. Transmission electron microscopy analysis reveals that the surface of the ZnO nanocones is corrugated or protuberant while the nanowires have a smooth surface. Both shapes demonstrate a strong UV luminescence band around 385 nm, and the nanocones also show three weak bands at 421, 484.6, and 532 nm in the blue-green range. (c) 2006 American Institute of Physics.

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