Influence of silver and graphite on zinc oxide nanostructures for optical application

被引:13
作者
Tawale, J. S. [1 ]
Kumar, A. [2 ]
Mohan, A. [2 ]
Srivastava, A. K. [1 ]
机构
[1] CSIR, Natl Phys Lab, New Delhi 110012, India
[2] Natl Inst Technol, Kurukshetra 136119, Haryana, India
关键词
ZnO tetrapods; Electron microscopy; Optical properties; ZNO; FABRICATION; NANOWIRES; GROWTH; PHOTOLUMINESCENCE; PHOTODETECTOR; ENHANCEMENT;
D O I
10.1016/j.optmat.2013.01.034
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Silver and graphite doped zinc oxide (ZnO) nanostructures were fabricated by facile and efficient direct sublimation process by employing thermal evaporation. Silver and graphite were incorporated to modify ZnO tetrapod structures for optical applications. Scanning and transmission electron microscopy techniques were used to investigate micro and nanostructures variation with doping in bare ZnO. Electrical measurements have been performed to study the conducting nature of these fascinating nanoobjects. Silver in ZnO results into flower shape multipod structure and graphite doping in ZnO results into tetrapods constituted with multiple rods like structure. Photoluminescence measurements revealed the alteration in emission towards near band edge peak with different excitation wavelength. Similar changes have been noted in UV graph by influencing the absorbance properties of the bare-ZnO with doping of silver and graphite. (C) 2013 Elsevier B.V. All rights reserved,
引用
收藏
页码:1335 / 1341
页数:7
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