Heterogeneous Graphene Nanostructures: ZnO Nanostructures Grown on Large-Area Graphene Layers

被引：82

作者：

Lin, Jian ^{[1
,2
]}

Penchev, Miroslav ^{[2
]}

Wang, Guoping ^{[2
]}

Paul, Rajat K. ^{[1
,2
]}

Zhong, Jiebin ^{[1
]}

Jing, Xiaoye ^{[1
]}

Ozkan, Mihri ^{[1
]}

Ozkan, Cengiz S. ^{[1
]}

机构：

[1] Univ Calif Riverside, Dept Mech Engn, Riverside, CA 92521 USA

[2] Univ Calif Riverside, Dept Elect Engn, Riverside, CA 92521 USA

来源：

SMALL | 2010年 / 6卷 / 21期

基金：

美国国家科学基金会;

关键词：

FILMS; TRANSPARENT; OXIDE; NANOWIRES; ARRAYS;

D O I：

10.1002/smll.201000250

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this work, the synthesis and characterization of three-dimensional hetergeneous graphene nanostructures (HGN) comprising continuous large-area graphene layers and ZnO nanostructures, fabricated via chemical vapor deposition, are reported. Characterization of large-area HGN demonstrates that it consists of 1-5 layers of graphene, and exhibits high optical transmittance and enhanced electrical conductivity. Electron microscopy investigation of the three-dimensional heterostructures shows that the morphology of ZnO nanostructures is highly dependent on the growth temperature. It is observed that ordered crystalline ZnO nanostructures are preferably grown along the < 0001 > direction. Ultraviolet spectroscopy and photoluminescence spectroscopy indicates that the CVD-grown HGN layers has excellent optical properties. A combination of electrical and optical properties of graphene and ZnO building blocks in ZnO-based HGN provides unique characteristics for opportunities in future optoelectronic devices.

引用

页码：2448 / 2452

页数：5

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