期刊
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
卷 24, 期 1, 页码 106-112出版社
SPRINGER
DOI: 10.1007/s10854-012-0911-6
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资金
- Department of Science and Technology, Government of India under Nanoscience and Technology Initiative program
- University Grant Commission
Surfactant free ZnO and Cu doped ZnO nanorods were synthesized by hydrothermal method. The formation of ZnO:Cu nanorods were confirmed by scanning electron microscopy, X-ray diffraction and Raman analysis. Diffuse reflectance spectroscopy results shows that band gap of ZnO nanorods shifts to red with increase of Cu content. The orange-red photoluminescent emission from ZnO nanorods originates from the oxygen vacancy or ZnO interstitial related defects. ZnO:Cu nanorods showed strong ferromagnetic behavior, however at higher doping percentage of Cu the ferromagnetic behavior was suppressed and paramagnetic nature was enhanced. The presence of non-polar E-2(high) and E-2(low) Raman modes in nanorods indicates that Cu doping didn't change the wurtzite structure of ZnO.
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