Paper
29 November 2000 Influence of annealing conditions on the chemical states of InP/SiO2nanocomposite films deposited by rf magnetron co-sputtering
Ruiqin Ding, Guorong Zhou, Hao Wang, Huidong Yang, Lin Hu
Author Affiliations +
Proceedings Volume 4086, Fourth International Conference on Thin Film Physics and Applications; (2000) https://doi.org/10.1117/12.408434
Event: 4th International Conference on Thin Film Physics and Applications, 2000, Shanghai, China
Abstract
Indium phosphide/silica composite thin films have been fabricated on water-cooled substrates and heated substrates respectively by radio frequency magnetron cosputtering technique. X ray diffraction patterns and optical absorption and photoluminescence spectra at room temperature strongly suggest that InP nanocrystals exist in the SiO2 matrices of the films deposited on water-cooled substrates after annealing and of the films deposited on heated substrates. X-ray photoelectron spectra show that there are quite a log of oxides of In and P and quite many oxygen deficiencies of SiO2 in the films deposited on water-cooled substrates, but there are few deficiencies of SiO2 and much less oxides of In and P in the films deposited on heated substrates. The component of InP increases and the oxides of In and P and oxygen deficiencies in SiO2 diminish at a large extent under suitable annealing temperature and time in a high vacuum system, but the role of annealing is limited because of the escape of P. The problem can be solved quite well by coating a SiO2 layer on the surfaces of the films before annealing and then annealing the films in H2 of 103 Pa.
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Ruiqin Ding, Guorong Zhou, Hao Wang, Huidong Yang, and Lin Hu "Influence of annealing conditions on the chemical states of InP/SiO2nanocomposite films deposited by rf magnetron co-sputtering", Proc. SPIE 4086, Fourth International Conference on Thin Film Physics and Applications, (29 November 2000); https://doi.org/10.1117/12.408434
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KEYWORDS
Annealing

Oxides

Oxygen

Absorption

Composites

Electrons

Nanocrystals

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