Analytical calculation of dark voltage-current characteristics of double-layer heterojunction photodiode

Bogdan S. Sokolovsky; Volodymyr K. Pysarevsky

doi:10.1117/12.407714

28 November 2000 Analytical calculation of dark voltage-current characteristics of double-layer heterojunction photodiode

Bogdan S. Sokolovsky, Volodymyr K. Pysarevsky

Author Affiliations +

Proceedings Volume 4340, 16th International Conference on Photoelectronics and Night Vision Devices; (2000) https://doi.org/10.1117/12.407714
Event: XVI International Conference on Photoelectronics and Night Vision Devices, 2000, Moscow, Russian Federation

Abstract

An analytical expression for dark voltage-current characteristics (VCC) of double layer heterojunction (DLHJ) photodiode. It is shown that spatial inhomogeneity of energy band gap in photodiode base region allows to substantially increase the reverse current connected with thermal generation of carriers both in the base region and at the contacts. In the case when wide gap layer is remote from the metallurgical edge of p-n junction at the distance comparable with the thickness of the space charge region (SCR) a portion of negative differential resistance (NDR) may appear on the reverse branch of VCC.

Citation Download Citation

Bogdan S. Sokolovsky and Volodymyr K. Pysarevsky "Analytical calculation of dark voltage-current characteristics of double-layer heterojunction photodiode", Proc. SPIE 4340, 16th International Conference on Photoelectronics and Night Vision Devices, (28 November 2000); https://doi.org/10.1117/12.407714

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