Giant enhancement of bandgap emission of ZnO nanorods by platinum nanoparticles

被引：207

作者：

Lin, Jian Ming ^{[1
]}

Lin, Hsia Yu ^{[1
]}

Cheng, Chung Liang ^{[1
]}

Chen, Yang Fang ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Phys, Taipei 106, Taiwan

来源：

NANOTECHNOLOGY | 2006年 / 17卷 / 17期

关键词：

D O I：

10.1088/0957-4484/17/17/017

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

By the formation of ZnO and Pt nanocomposites, it is found that the bandgap emission can be greatly enhanced, while the defect emission is suppressed to the noise level. The photoluminescence intensity ratio between the bandgap and defect emission can be improved by up to 103 times. The underlying mechanism behind enhancement of the bandgap emission and quenching of the defect emission is a combination of the energy transfer between defects and surface plasmon resonance in Pt nanoparticles, as well as electron - hole pair generation and recombination in the ZnO nanorods. Our results will be very useful to manufacturers of highly efficient optoelectronic devices.

引用

页码：4391 / 4394

页数：4

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