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arXiv · 1905.07179

Effect of nano-carbon dispersions on signal in silicon-based sensor structure with photoelectrical transducer principle

Anton I. Manilov·Aleksey V. Kozinetz·Sergiy V. Litvinenko·Valeriy A. Skryshevsky·Mohammed Al Araimi·Alex Rozhin
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Abstract

We identified different nano-carbon species such as graphene nanoplatelets, graphite flakes and carbon nanotubes dispersed in N-methyl-2-pyrrolidone using a novel sensor structure based on a "deep" silicon barrier working as a photoelectrical transducer. Each nano-carbon particle has specific signature in both 2D photocurrent distribution and photocurrent dependences on bias changing surface band-bending. Additionally, all nano-carbon particles have characteristic features in the time-dependent evolution of photocurrent. The obtained results can be explained by the influence of nano-carbon molecules' local electric field on the recombination parameters of defect centers on the silicon surface.

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Anton I. Manilov, Aleksey V. Kozinetz, Sergiy V. Litvinenko, Valeriy A. Skryshevsky, Mohammed Al Araimi, Alex Rozhin. 2019-05-17. Effect of nano-carbon dispersions on signal in silicon-based sensor structure with photoelectrical transducer principle. https://doi.org/10.1016/j.cap.2018.12.012

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