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Optical properties of polysiloxane hybrid thin films containing nano-sized Ag–As–Se chalcogenide clusters

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Abstract

Chalcogenide glasses are attractive for all-optical signal processing due to their outstanding optical properties, including large optical nonlinearity, a high refractive index and high photosensitivity. In device fabrication, a challenge lies in the difficulty of obtaining thin films with a high stability and good uniformity. In this paper, optical thin films containing nano-sized chalcogenide clusters in polysiloxane matrices are fabricated by a modified plasma deposition process. The optical absorption and luminescence emission properties of the hybrid thin films were characterized by UV-Vis-NIR and fluorescence spectroscopy. Luminescent emission from Ag–As–Se nano-sized clusters was observed for the first time in these nano-hybrid thin films, and the mechanism was discussed.

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Authors and Affiliations

  1. CSIRO Molecular & Health Technologies, Ian Wark Laboratories, Bayview Avenue, Clayton, VIC, 3168, Australia

    Congji Zha, Peter Osvath, Gerry Wilson & Anton Launikonis

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  1. Congji Zha
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  2. Peter Osvath
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  3. Gerry Wilson
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  4. Anton Launikonis
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Correspondence to Congji Zha.

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Zha, C., Osvath, P., Wilson, G. et al. Optical properties of polysiloxane hybrid thin films containing nano-sized Ag–As–Se chalcogenide clusters. Appl. Phys. A 94, 427–430 (2009). https://doi.org/10.1007/s00339-008-4839-x

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  • DOI: https://doi.org/10.1007/s00339-008-4839-x

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