Browsing by Author "Mikhailova, Maya"

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    Electrical properties of photodiodes based on p-GaSb/p-GaInAsSb/N-GaAlAsSb heterojunctions
    (Maik Nauka/Interperiodica/Springer, 2008-11) Andreev, Igor; Kunitsyna, Ekaterina; Mikhailova, Maya; Yakovlev, Yu. P.; Ahmetoglu, Muhitdin; Kaynak, Gökay; Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Fizik Bölümü.; 16021109400; 12042075600
    We have studied the electrical characteristics of photodiodes based on p-GaSb/p-GaInAsSb/N-GaAlAsSb heterojunctions and investigated the mechanisms of current transfer in these heterostructures at various temperatures. A comparison of the theoretical results and experimental data showed that the tunneling charge transfer mechanism dominates at low temperatures (T < 150 K) under both forward and reverse bias conditions. The tunneling current becomes a determining factor at an electric field strength in the p-n junction of no less that 10(5) V/cm, which is related to a small bandgap width of the materials studied and low effective masses of electrons and holes.