Optical Properties of Bismuth Oxide Nanoparticles Synthesized by Pulsed Laser Ablation in Liquids

被引：44
作者：
Gondal, M. A. [1 ,2 ]
Saleh, Tawfik A. [2 ,3 ]
Drmosh, Q. [1 ,2 ]
机构：
[1] King Fahd Univ Petr & Minerals, Dept Phys, Laser Res Grp, Dhahran 31261, Saudi Arabia
[2] King Fahd Univ Petr & Minerals, Ctr Excellence Nanotechnol CENT, Dhahran 31261, Saudi Arabia
[3] King Fahd Univ Petr & Minerals, Dept Chem, Dhahran 31261, Saudi Arabia
来源：
SCIENCE OF ADVANCED MATERIALS | 2012年 / 4卷 / 3-4期
关键词：
Nanoparticles; Pulsed Laser Ablation; Bismuth Oxide; Optical Properties; Nanotechnolgy; ZNO2; NANOPARTICLES; BAND-GAP; CATALYSTS; EMISSION; FILMS; BI2O3;
D O I：
10.1166/sam.2012.1310
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
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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页码：507 / 510
页数：4
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