Abstract
The photoconductivity and electro-optic response of a self-organised nanostructured poly[(ethynediyl)(arylene)(ethynediyl)silylene]/N-ethylcarbazole/polyphenylsilsesquioxane composite have been investigated with a cw diode laser at a wavelength of 1500 nm. For electric field 25 V µm−1 and beam intensity 18 W cm−2, the photosensitivity was 0.5 pS cm−1 (W cm−2)−1. The dark conductivity was found to be much less than the photoconductivity and the composite shows photo charge generation at this wavelength. The value of the composite electro-optic coefficient is in agreement with data for polymeric materials active in the visible range. Orientational effects have been observed with modulation frequencies down to several Hz, and quite slow dynamics of the response can be expected.
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1897–1901, September, 2004.
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Douglas, W.E., Klapshina, L.G., Kuzhelev, A.S. et al. Self-organised poly[(ethynediyl)(arylene)(ethynediyl)silylene]/N-ethylcarbazole/polyphenylsilsesquioxane hybrid nanomaterials: photoconductivity and electro-optic response at telecommunication wavelengths. Russ Chem Bull 53, 1978–1982 (2004). https://doi.org/10.1007/s11172-005-0058-1
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DOI: https://doi.org/10.1007/s11172-005-0058-1