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Weak rectifying behaviour of p-SnS/n-ITO heterojunctions

Devika, M and Reddy, N Koteeswara and Ramesh, K and Patolsky, F and Gunasekhar, KR (2009) Weak rectifying behaviour of p-SnS/n-ITO heterojunctions. In: Solid-state electronics, 53 (6). pp. 630-634.

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Abstract

This work explores the electrical properties of p-SnS/n-ITO heterojunction at different temperatures. The p-type SnS film was deposited on n-type ITO substrate using the thermal evaporation technique and its junction properties were studied using two probe method. The as-grown p-n junction exhibited weak rectifying behaviour with a low Saturation current of the order of similar to 10(-6) A. While increasing temperature, the saturation current of the junction is increased and however, its series resistance decreased. At all temperatures the junction exhibited three types of transport mechanisms depending on applied bias-voltage. At lower voltages the junction showed nearly ideal diode characteristics. The junction behaviour with respect to bias-voltage and temperature is discussed with the help of existing theories and energy band diagram.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to Elsevier science.
Keywords: p-SnS/n-ITO heterojunctions; Electrical properties; Transport mechanism; Optoelectronic devices
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation and Applied Physics (Formally ISU)
Division of Physical & Mathematical Sciences > Physics
Date Deposited: 31 Dec 2009 09:09
Last Modified: 19 Sep 2010 05:37
URI: http://eprints.iisc.ernet.in/id/eprint/21463

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