Highly efficient luminescence from hybrid structures of ZnO/multi-walled carbon nanotubes for high performance display applications

被引：21

作者：

Gupta, Bipin Kumar ^{[1
]}

Grover, Vaneet ^{[1
,2
]}

Gupta, Govind ^{[1
]}

Shanker, V. ^{[1
]}

机构：

[1] CSIR, Natl Phys Lab, New Delhi 110012, India

[2] Panjab Univ, Dept Phys, CEAST, Chandigarh 160014, India

来源：

NANOTECHNOLOGY | 2010年 / 21卷 / 47期

关键词：

ZINC-OXIDE; ZNO; PURIFICATION; DEFECTS;

D O I：

10.1088/0957-4484/21/47/475701

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report an interesting observation on strong enhancement in green luminescence from hybrid ZnO/multi-walled carbon nanotubes (MWCNTs). The hybrid structures were synthesized via a high temperature sintering method. The strong green emission at 510 nm has been attributed to surface defects of ZnO, originating from interactions between ZnO and the MWCNT surface, which has been confirmed by high resolution transmission electron microscopy and x-ray photoelectron spectroscopy. Furthermore, the two-dimensional (2D) layer of this hybrid material shows a high degree of homogeneity and 82% transparency. Time resolved emission spectroscopy measurement shows a photoluminescence decay time in microseconds, which is suitable for making optoelectronic devices.

引用

页数：6

共 22 条

[1] Luminescence quenching in ZnS nanoparticles due to Fe and Ni doping [J].