Observation of size-dependent features in the photoluminescence of zinc oxide nanocrystallites by near-field ultraviolet spectroscopy

被引：30

作者：

Yatsui, T ^{[1
]}

Kawazoe, T

Shimizu, T

Yamamoto, Y

Ueda, M

Kourogi, M

Ohtsu, M

Lee, GH

机构：

[1] Japan Sci & Technol Corp, Tokyo 1940004, Japan

[2] Tokyo Inst Technol, Interdisciplinary Grad Sch Sci & Technol, Midori Ku, Kanagawa 2268502, Japan

[3] Dong Eui Univ, Dept Adv Mat Engn, Pusan 614714, South Korea

来源：

APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 08期

关键词：

D O I：

10.1063/1.1453487

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The optical properties of single zinc oxide (ZnO) nanocrystallites were investigated at room temperature by extending the optical near-field technique to the UV region. Using a UV fiber probe with a subwavelength aperture, we performed spatially- and spectrally-resolved photoluminescence (PL) imaging of individual ZnO nanocrystallites with a spatial resolution of 55 nm. Furthermore, decreasing the spot size increased the intensities of higher-energy components of the PL spectrum due to the quantum size effect. (C) 2002 American Institute of Physics.

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页码：1444 / 1446

页数：3

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