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Influence of charge traps in carbon nanodots on gas interaction

Mukherjee, Anwesha and Reddy, Siva Kumar and Boruah, Buddha Deka and Misra, Abha (2017) Influence of charge traps in carbon nanodots on gas interaction. In: NANOTECHNOLOGY, 28 (13).

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Official URL: http://dx.doi.org/10.1088/1361-6528

Abstract

The nonlinear electrical characteristic of carbon nanodots (CNDs) has revealed important physical phenomena of charge trapping playing a dominant role in surface interactions. Functional groups on the surface of CNDs attract ambient water molecules which in turn act as charge traps and give rise to electrical hysteresis that plays a dominant role in understanding charge transport in CNDs on surface interactions. Hysteresis in the current- voltage response is further utilized to study the interaction of the CNDs with nitrogen dioxide gas as an external stimuli. The hysteresis area is observed to be dependent on the time of gas interaction with the CNDs, therefore revealing the interaction mechanism of the CNDs with the gas. Supplementary material for this article is available online

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the IOP PUBLISHING LTD, TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Depositing User: Id for Latest eprints
Date Deposited: 26 Apr 2017 07:23
Last Modified: 26 Apr 2017 07:23
URI: http://eprints.iisc.ac.in/id/eprint/56640

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