Ag-induced a New Raman Mode in ZnO Microrods

  • Jing WANG
  • Lina WANG
  • Meina WANG
  • Dan ZHOU
  • Yan MEI
  • Wenzhuo HUANG
  • Tian XING
  • Shengxu GE
  • Yuntong CHEN
  • You YU
  • Zhongqi LUAN
  • Bing QU
  • Yaxiang BAI
  • Chao PAN
  • Delong TANG
  • Na ZHU
  • Yu QIU
  • Lizhong HU
Keywords: ZnO microrods, Ag doping, Raman spectrum

Abstract

The chemical vapor deposition technique was used to prepare the Ag doped ZnO microrods, which were located on Si substrates at two different positions.  The scanning electron microscopy revealed that the samples have a clear hexagonal shape. X-ray diffraction provided information about the preferential orientation along the c-axis. The Raman analysis revealed that a new Raman mode appears at 492 cm-1 due to Ag doping. As this mode has not been reported early, it could be used as a characteristic mode of Ag doping in Raman spectrum. The red shift of the E2 (high) mode proves the existence of tensile stress in the samples.

DOI: http://dx.doi.org/10.5755/j01.ms.25.3.19130

Published
2019-05-10
Section
ELECTRONIC AND OPTICAL MATERIALS