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Proceedings Paper

Photoconductivity of a semiconductor with anisotropic electroconductivity in a nonhomogeneous electric field
Author(s): Arthur Medvids; V. Frishfelds
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Paper Abstract

The kinetics of photoconductivity and the spectral photosensitivity of a semiconductor with anisotropic electroconductivity in nonhomogeneous electric field has been investigated. Photoconductivity of germanium samples of ring geometry was studied experimentally and theoretically. The main results are: decay of the photocurrent in a semiconductor in the presence of a transverse gradient of electric field differs from the exponential one and depends on mutual directions of the gradient and the drift of the carriers; a photodetector with parameters reversibly controlled by electric and magnetic fields is possible. It was found that spectral photosensitivity either selective or bolometric depending on mutual directions of incident light, the gradient of electric field, and of drift of carriers.

Paper Details

Date Published: 6 February 1997
PDF: 4 pages
Proc. SPIE 2968, Optical Organic and Semiconductor Inorganic Materials, (6 February 1997); doi: 10.1117/12.266819
Show Author Affiliations
Arthur Medvids, Riga Technical Univ. (Latvia)
V. Frishfelds, Riga Technical Univ. (Latvia)


Published in SPIE Proceedings Vol. 2968:
Optical Organic and Semiconductor Inorganic Materials

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