1. Effect of nano-carbon dispersions on signal in silicon-based sensor structure with photoelectrical transducer principle
- Author
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Alex Rozhin, S. V. Litvinenko, Valeriy A. Skryshevsky, Mohammed Al Araimi, A.V. Kozinetz, and A.I. Manilov
- Subjects
Materials science ,Silicon ,FOS: Physical sciences ,General Physics and Astronomy ,chemistry.chemical_element ,Applied Physics (physics.app-ph) ,02 engineering and technology ,Carbon nanotube ,01 natural sciences ,law.invention ,law ,Electric field ,0103 physical sciences ,General Materials Science ,Graphite ,010302 applied physics ,Photocurrent ,Graphene ,business.industry ,Physics - Applied Physics ,021001 nanoscience & nanotechnology ,Transducer ,chemistry ,Optoelectronics ,Particle ,0210 nano-technology ,business - 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 dependencies 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.
- Published
- 2019
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