Influence of surface morphology on the optical property of vertically aligned ZnO nanorods

被引：16

作者：

Das, Sachindra Nath ^{[1
]}

Kar, Jyoti Prakash ^{[1
]}

Choi, Ji-Hyuk ^{[1
]}

Byeon, S. ^{[2
]}

Jho, Y. D. ^{[2
]}

Myoung, Jae-Min ^{[1
]}

机构：

[1] Yonsei Univ, Dept Mat Sci & Engn, Informat & Elect Mat Res Lab, Seoul 120749, South Korea

[2] Gwangju Inst Sci & Technol, Dept Informat & Commun, Kwangju 500712, South Korea

来源：

APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 11期

关键词：

PHOTOLUMINESCENCE;

D O I：

10.1063/1.3231615

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this letter we have studied an influence of surface morphology on the optical property of vertically aligned ZnO nanorods. At low temperature the near band edge excitonic emission shows a strong dependence on surface morphology. A prominent and well resolved near band edge photoluminescence (PL) peak was obtained for nanowires with decreasing diameter and thus assigned due to the contributions to the optical properties of individual nanorods. Depending on surface morphology, the difference in low temperature PL property is attributed to the tailing of the density of states due to the potential fluctuations in randomly distributed intrinsic defects. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3231615]

引用

页数：3

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