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Micro-dimensional GaSb photovoltaic converters of high-power density laser radiation
Russian version
Khvostikov V. P. 1, Malevskaya A. V. 1, Pokrovskiy P. V. 1, Khvostikova O. A. 1, Soldatenkov F. Y. 1, Nakhimovich M. V.1
1Ioffe Institute, St. Petersburg, Russia
Email: Vlkhv@scell.ioffe.ru, amalevskaya@mail.ioffe.ru, p.pokrovskiy@mail.ioffe.ru, Olgakhv@mail.ioffe.ru, f.soldatenkov@mail.ioffe.ru, nmar@mail.ioffe.ru
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Investigations of the manufacturing technology of laser radiation (λ=1550 nm) photovoltaic converters, obtained by the two-stage Zn diffusion into n-GaSb substrate, with photosensitive region 30 and 80 μm in diameter have been carried out. Methods to reduce optical and ohmic losses of high-power density laser radiation (up to 1.6 kW/cm2) conversion have been investigated. Laser radiation conversion efficiency more than 38% at photocurrent density 200-550 A/cm2 was achieved. Keywords: photovoltaic converter, laser radiation, diffusion.
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