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Semiconductor Physics, Quantum Electronics & Optoelectronics. 2007. V. 10, N 3. P. 091-094.
Estimation on frequency characteristics of a photodiode
determined by the motion of charge carriers in the space
charge region on the surface generation of carriers
SPF “Tenzor” Ltd (Chernivtsi), 226, Chervonoarmiis’ka str., 58013 Chernivtsi, Ukraine
E-mail: chtenz@chv.ukrpack.net
Abstract. We have estimated the frequency characteristics of a photodiode determined
by the motion of charge carriers in the space-charge region on the surface generation of
carriers in two extreme cases of unalloyed and evenly alloyed semiconductors. The
expressions allowing the comparison of photodiodes with different constructions have
been obtained.
Keywords: photodiode, charge carrier, frequency, photosignal, generation.
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