Semiconductor Physics, Quantum Electronics & Optoelectronics. 2011. V. 14, N 2. P. 170-174.
Charge transport in bismuth orthogermanate crystals
Dnepropetrovsk National University, 49050, Dnepropetrovsk, Ukraine
Phone:+38 (056) 776-83-18; e-mail: tbochkova@meta.ua
Abstract.
Current-voltage relations in bismuth orthogermanate crystals with Ag, Pt, In-
Ga electrodes have been measured in the modes of double and unipolar injection of
charge carriers. It has been shown that Bi 4 Ge 3 O 12 is relaxation type semiconductor. The
appearance of the regions with negative differential resistance or sublinear rise of the
current in characteristics is connected with the injection of the minority charge
carriers and recombination processes in the space charge layer.
Keywords: bismuth orthogermanate, current-voltage characteristics, relaxation type
semiconductors.
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