期刊
SCIENCE OF ADVANCED MATERIALS
卷 4, 期 3-4, 页码 507-510出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/sam.2012.1310
关键词
Nanoparticles; Pulsed Laser Ablation; Bismuth Oxide; Optical Properties; Nanotechnolgy
资金
- King Fand University of Petroleum and Minerals [08-NAN93-4]
Bismuth oxide (Bi2O3) nanostructured particles were synthesized by pulsed laser ablation (PLA) technique by irradiating solid bismuth target in 3% H2O2 solution using 355 nm laser radiations generated by third harmonic Nd:YAG laser. Synthesized nanoparticles (NPs) were characterized by X-ray diffraction (XRD), Field Emission Scanning Electron Microscope (FESEM), UV-visible absorption, Fourier transform Infra-Red (FTIR) and Raman spectroscopy. The XRD pattern of the prepared sample was indexed as bismuth oxide alpha- Bi2O3 and particle size was evaluated = 4 nrn. The UV-visible spectrum indicated that the absorption edge is blue shifted and the band gap of the prepared sample was estimated = 3.8 eV. The Raman spectrum exhibited peaks at 68, 96, 135, 315, 183, and 470 nm which are the characteristic bands of alpha-Bi2O3. The FTIR spectrum showed the absorption band at 829 cm(-1) which is attributed to Bi-O-Bi bond, and the strong absorption band recorded at 442 cm(-1) is due to the stretching mode of Bi-O.
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