Quantum size effect as evidenced by small-angle X-ray scattering of In{sub 2}O{sub 3} nanoparticles
- Centro de Ciencia e Tecnologia de Materiais, Instituto de Pesquisas Energeticas e Nucleares, R. do Matao, Trav. R, 400, Cidade Universitaria, S. Paulo, SP, 05508-000 (Brazil)
Indium oxide nanoparticles were synthesized by a surfactant-free room-temperature soft chemistry route. The medium particle size of the thermally treated gel was evaluated by X-ray diffraction experiments, nitrogen adsorption measurements, transmission electron microscopy observations and small-angle X-ray scattering using synchrotron radiation. The main results show the single-crystalline nature of the prepared nanoparticles with 8 nm in diameter. The photoluminescence emission spectrum at room-temperature shows a broad peak with onset at, approximately, 315 nm as a result of quantum size effect produced by a small population of nanoparticles with average size of about 2.8 nm as revealed by small-angle X-ray scattering.
- OSTI ID:
- 21260223
- Journal Information:
- AIP Conference Proceedings, Vol. 1092, Issue 1; Conference: 6. international conference on synchrotron radiation in materials science, Campinas (Brazil), 20-23 Jul 2008; Other Information: DOI: 10.1063/1.3086210; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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