Journal
APPLIED SURFACE SCIENCE
Volume 256, Issue 11, Pages 3365-3368Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2009.12.035
Keywords
ZnO nanorods; Mn-doped; Raman spectroscopy; Photoluminescence
Categories
Funding
- National Natural Science Foundation of China [60778040, 60878039]
- Ministry of Science and Technology of China [2007AA032400448]
- Science and Technology Bureau of Jilin Province [20060518, 20082112, 20080158]
- Science and Technology Bureau of Key Program for Ministry of Education [207025]
- Innovative Program for Graduate Student of Jiangsu University [CX09B_01XZ]
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Mn-doped ZnO nanorods were synthesized from aqueous solutions of zinc nitrate hexahydrate, manganese nitrate and methenamine by the chemical solution deposition method (CBD). Their microstructures, morphologies and optical properties were studied in detail. X-ray diffraction (XRD) results illustrated that all the diffraction peaks can be indexed to ZnO with the hexagonal wurtzite structure. Scanning electron microscope (SEM) results showed that the average diameter of Mn-doped ZnO nanorods was larger than that of the undoped one. Photoluminescence (PL) spectra indicated that manganese doping suppressed the emission intensity and caused the blue shift of UV emission position compared with the undoped ZnO nanorods. In the Raman spectrum of Mn-doped ZnO nanorods, an additional mode at about 525 cm(-1) appearedwhich was significantly enhanced and broadened with the increase of Mn doping concentration. (C) 2009 Elsevier B. V. All rights reserved.
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