Self-assembled ZnO quantum dots with tunable optical properties

被引：84

作者：

Lu, J. G. ^{[1
]}

Ye, Z. Z.

Zhang, Y. Z.

Liang, Q. L.

Fujita, Sz.

Wang, Z. L.

机构：

[1] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

[2] Semicond Mfg Int Corp, Qual Engn Div, Shanghai 201203, Peoples R China

[3] Kyoto Univ, Int Innovat Ctr, Nishikyo Ku, Kyoto 6158520, Japan

[4] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 02期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2221892

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Self-assembled ZnO quantum dots (QDs) were achieved by a vapor phase transport process. ZnO nanodots were naturally formed on solid substrates in the Volmer-Weber growth mode. Size control of nanodots could be readily realized by varying the growth time. The as-prepared ZnO QDs are of high quality and very stable after formation. The blueshift of band gap energies derived from quantum confinement effects was confirmed by optical absorption spectra. Photoluminescence spectra revealed the tunable behavior of ultraviolet luminescence due to exciton localization. The realization of size-tuned color from ZnO QDs makes them more promising for practical applications. (c) 2006 American Institute of Physics.

引用

页数：3

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