Current transport mechanisms in n‐InSe/p‐CdTe heterojunctions

Autor:	Paul P. Horley, O. A. Chervinsky, Jesús González-Hernández, P. M. Gorley, Z. M. Grushka, Yu. V. Vorobiev, O. G. Grushka, V. P. Makhniy
Rok vydání:	2008
Předmět:	Chemistry business.industry High voltage Nanotechnology Heterojunction Condensed Matter Physics Cadmium telluride photovoltaics Impact ionization Optoelectronics Current (fluid) business Low voltage Quantum tunnelling Voltage
Zdroj:	physica status solidi c. 5:3622-3625
ISSN:	1610-1642 1862-6351
DOI:	10.1002/pssc.200780149
Popis:	Anisotype heterojunctions n-InSe/p-CdTe were created by deposition over optical contact. The main electrical properties of the devices obtained were investigated. It was found that the current under the forward bias is determined by tunneling-recombination processes under the low voltage and over-barrier transport for the high voltage. The reverse current features a tunneling character for the small bias, and becomes significantly amplified for the large applied voltages due to the avalanche multiplication of the carriers caused by impact ionization. Our research has shown that the experimental results can be adequately described in the framework of the known models of current transport for the abrupt anisotype heterojunctions. (© 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Databáze:	OpenAIRE
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