Photosensitive organic-inorganic hybrid structures based on porous silicon |
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Authors: | I B Olenych O I Aksimentyeva |
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Institution: | 1. Ivan Franko Lviv National University, 50, Dragomanov str., Lviv, Ukraineiolenych@gmail.com;3. Ivan Franko Lviv National University, 50, Dragomanov str., Lviv, Ukraine |
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Abstract: | AbstractIn this study, the photovoltaic organic-inorganic structures were created by deposition of poly(3,4-ethylenedioxythiophene) film doped by poly(styrenesulfonate) and reduced graphene oxide on the porous silicon/silicon substrate. Formation of the hybrid structure was confirmed by means of atomic-force microscopy and Fourier transform infrared spectroscopy. The current-voltage characteristics of the obtained structures were studied. It was found the increase of electrical conductivity and photo-induced signal in organic-inorganic structures. Temporal parameters and spectral characteristics of photoresponse in the 400–1100?nm wavelength range were investigated. The widening of spectral photosensitivity in a short-wavelength range due to light absorption in various layers of the multijunction structure in comparison with single crystal silicon was revealed. |
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Keywords: | hybrid structure photosensitivity poly(3 4-ethylenedioxythiophene) porous silicon reduced graphene oxide |
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