Growth and optical properties of single-crystal tubular ZnO whiskers

被引：297

作者：

Hu, JQ

Bando, Y

机构：

[1] Natl Inst Mat Sci, Adv Mat Lab, Tsukuba, Ibaraki 3050044, Japan

[2] Natl Inst Mat Sci, Nanomat Lab, Tsukuba, Ibaraki 3050044, Japan

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 09期

关键词：

D O I：

10.1063/1.1558899

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The growth of single-crystal tubular ZnO whiskers was achieved via a process of first reduction and following oxidation of ZnS powders. The products were characterized using x-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, and photoluminescence spectroscopy. The whiskers are tubular single crystals with the [001] growth crystallographic direction, and most have outer diameters of similar to400 nm, lengths of up to 15 mum, and wall thickness range of 100-150 nm. Room-temperature photoluminescence spectrum of the whiskers reveals a strong and sharp UV emission band at 381 nm and a weak and broad green emission band at 583 nm. Possible growth mechanism of the ZnO whiskers was briefly discussed. (C) 2003 American Institute of Physics.

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收藏

页码：1401 / 1403

页数：3

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