CUED Publications database

Influence of charge traps in carbon nanodots on gas interaction

Mukherjee, A and Reddy, SK and Deka Boruah, B and Misra, A (2017) Influence of charge traps in carbon nanodots on gas interaction. Nanotechnology, 28. 135206-. ISSN 0957-4484

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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.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div E > Production Processes
Depositing User: Cron Job
Date Deposited: 20 May 2019 20:04
Last Modified: 08 Apr 2021 05:43
DOI: 10.1088/1361-6528/aa5fbc