Comparative characterisations of structural and optical properties of zinc oxide modified by carbon nanotubes and graphene

被引：4

作者：

Hong, Ruijin ^{[1
]}

Tuo, Wengang ^{[1
]}

Zhang, Dawei ^{[1
]}

Tao, Chunxian ^{[1
]}

Zhang, Dao Hua ^{[2
]}

机构：

[1] Univ Shanghai Sci & Technol, Sch Opt Elect & Comp Engn, Shanghai Key Lab Modern Opt Syst, Opt Instrument & Syst Engn Ctr,Minist Educ, Shanghai 200093, Peoples R China

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

来源：

INTERNATIONAL JOURNAL OF NANOTECHNOLOGY | 2015年 / 12卷 / 10-12期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

ZnO; carbon nanotubes; CNTs; graphene; modification; ZNO; NANOPARTICLES; COMPOSITE; FILMS;

D O I：

10.1504/IJNT.2015.071790

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In the present work, we report on the fabrications of ZnO/carbon nanotubes (CNTs) and ZnO/graphene composites based on a simple solution synthesis route. The effects of CNTs and graphene on the structure and optical properties of ZnO were investigated by X-ray diffraction (XRD), Raman scattering, optical absorption and photoluminescence measurements. The XRD patterns indicated that both CNTs and graphene could enhance the diffraction intensity of ZnO and the diffraction peaks shifted toward lower 2 theta angles. The optical band gap of ZnO/CNTs and ZnO/graphene composites was narrower compared with that of undoped ZnO. Raman scattering spectra showed that the scattering intensities of both the oxygen atom and Zn sublattice-related phonon modes were reduced with the CNTs or graphene doping. The photoluminescence intensities of ZnO samples modified by both CNTs and graphene layers were significantly decreased compared with that of undoped ZnO owing to the interfacial charge-transfer between ZnO and CNTs (graphene).

引用

页码：793 / 801

页数：9

共 27 条

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