Giant enhancement of top emission from ZnO thin film by nanopatterned Pt

被引：111

作者：

Liu, K. W. ^{[1
]}

Tang, Y. D. ^{[1
]}

Cong, C. X. ^{[1
]}

Sum, T. C. ^{[1
]}

Huan, A. C. H. ^{[1
]}

Shen, Z. X. ^{[1
]}

Wang, Li ^{[2
]}

Jiang, F. Y. ^{[2
]}

Sun, X. W. ^{[3
]}

Sun, H. D. ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Math & Phys Sci, Div Phys & Appl Phys, Singapore 637371, Singapore

[2] Nanchang Univ, Educ Minister Engn Res Ctr Luminescence Mat & Dev, Nanchang 330047, Jiangxi, Peoples R China

[3] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 15期

关键词：

energy gap; II-VI semiconductors; nanopatterning; nanostructured materials; photoluminescence; platinum; semiconductor thin films; surface plasmons; surface treatment; zinc compounds;

D O I：

10.1063/1.3116617

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The authors report the enhancement of the bandgap emission from ZnO thin films by surface modification and surface plasmon cross-coupling. 12-fold and twofold enhancements of bandgap emission from the metal side of ZnO film were observed by sputtering Pt nanopattern and Pt film onto ZnO film, respectively. Time-resolved photoluminescence indicates that the decay time is slowed down by Pt capping, contrary to common observations. The "abnormal" phenomena are interpreted by considering both the surface modification and surface plasmon coupling.

引用

页数：3

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