Abstract
This work is devoted to the determination of the mechanisms of generation, transfer, and recombination of charge carriers in a hybrid organic–inorganic system—a polymer poly-3-hexylthiophene with silicon nanoparticles (nc-Si). It is shown that by varying the nc-Si concentration, it is possible to change the conductivity and photoconductivity of such a system within a fairly wide range, achieving optimal values for applications in optoelectronics (photodetectors, solar cells, etc.). A model is proposed making it possible to describe the photoelectric properties of poly-3-hexylthiophene modified with nc-Si from a single point of view. The model assumes a Gaussian distribution of the density of electronic states along which the hopping transport of charge carriers occurs. The influence of nc-Si mainly affects the parameters of the Gaussian distribution of the density of electronic states and the position of the Fermi level.
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ACKNOWLEDGMENTS
The equipment of the Educational and Methodological Center for Lithography and Microscopy of Moscow State University was used in the work.
Funding
This work was supported by the Russian Foundation for Basic Research, project no. 18-29-23005.
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Translated by V. Kudrinskaya
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Savin, K., Forsh, P., Kazanskiy, A. et al. Electrophysical and Photoelectric Properties of Poly-3-Hexylthiophene Modified with Silicon Nanoparticles. Nanotechnol Russia 15, 770–777 (2020). https://doi.org/10.1134/S1995078020060178
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DOI: https://doi.org/10.1134/S1995078020060178