期刊
SUPERLATTICES AND MICROSTRUCTURES
卷 77, 期 -, 页码 256-266出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.spmi.2014.10.006
关键词
Nanocomposite; Hydrothermal; Ultrasonication; Band gap; Optical spectroscopy
资金
- Word Academy of Sciences (TWAS) [11-028 RG/MSN/AS_C]
- Higher Education Commission (HEC) Pakistan [20-2660/NRPU/R82D/HEC/13]
Gadolinium oxide-samarium oxide (Gd2O3/Sm2O3) nanocomposite was synthesized via sonication and hydrothermal methods. The sample was characterized by using thermogravimetric analysis and Fourier transformation infrared spectroscopy. The average crystalline size was calculated by Scherrer equation, Wood-Tauc relation using X-ray diffraction and transmission electron microscope. The size was found to be in a range of 15-30 nm. The morphological study was carried out with scanning electron microscope. Optical properties were investigated by solid phase and UV-visible absorption spectrophotometer. The band gap energy of the Gadolinium oxide was shifted from 53 eV to 23 eV. The change in band gap indicates red shift in nanocomposite. (C) 2014 Elsevier Ltd. All rights reserved.
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