Abstract
An analytical model is proposed for the study of the effect of surface recombination on the characteristics of a solar cell made of a nanowire with a radial p-n junction formed between its ‘core’ and ‘shell’ with different types of the conductivity. The influence of the surface recombination on such important parameters of the solar cell as the short circuit current, open circuit voltage, and efficiency of conversion of the energy of solar radiation into electrical energy is considered when the shell width is varying over a wide range. It is shown that the relatively low open-circuit voltage, often observed experimentally in such solar cells, can be partially caused by significant surface recombination on the sidewall of the nanowire, the role of which increases with decreasing nanowire diameter and increasing surface to volume ratio.
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This work was partially supported by the Russian-Armenian University.
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Translated by V. Aroutiounian
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Petrosyan, S.G., Khachatryan, V.A. & Nersesyan, S.R. Influence of Surface Recombination on Open Circuit-Voltage of a Single Nanowire Solar Cell with Radial p-n Junction. J. Contemp. Phys. 55, 225–234 (2020). https://doi.org/10.3103/S1068337220030111
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DOI: https://doi.org/10.3103/S1068337220030111