On the possibility of determining the diffusion length of excitons in semiconductors from photomagnetic measurement data |
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| Authors: | I G Atabaev N A Matchanov M U Khazhiev D Saidov |
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| Institution: | (1) Physicotechnical Institute, Physics-Sun Scientific Production Association, Uzbek Academy of Sciences, ul. Mavlanova 2B, Tashkent, 700084, Uzbekistan |
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| Abstract: | The effect of a magnetic field on the photocurrent Iph in Si and GaAs solar cells is investigated. It is shown that the observed change in the photocurrent Iph of the solar cells in response to a magnetic field can be caused by a decrease in the diffusion length of excitons Lexc. A simplified model of the photomagnetic experiment is proposed to estimate the diffusion length of excitons Lexc and the contribution made by excitons to the photocurrent of the solar cells. |
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