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Journal article
Controlling the conductivity of Ti 3 C 2 MXenes by inductively coupled oxygen and hydrogen plasma treatment and humidity
RSC advances, Vol.7(22), pp.13097-13103
2017
Abstract
We report on the effects of plasma treatment and humidity on the electrical conductivities of Ti
3
C
2
MXene thin films. The latter – spincoated from a colloidal solution produced by LiF/HCl etching of Ti
3
AlC
2
powders – were 13 nm thick with an area of 6.8 mm
2
. The changes in the films exposed to hydrogen (H) and oxygen (O) plasmas in vacuum were analyzed by X-ray photoelectron spectroscopy. We find that the film resistivities can be switched reproducibly by plasma treatment between 5.6 μΩm (oxidized state) to 4.6 μΩm (reduced state). Both states show metallic like conductivity. In high vacuum, the film resistivity was 243 Ω; when the relative humidity was 80% the film resistance increased to 6340 Ω, a 26 fold increase.
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Details
- Title
- Controlling the conductivity of Ti 3 C 2 MXenes by inductively coupled oxygen and hydrogen plasma treatment and humidity
- Creators
- Florian M. Römer - University of Duisburg-EssenUlf Wiedwald - University of Duisburg-EssenTanja Strusch - University of Duisburg-EssenJoseph Halim - Drexel UniversityElisa Mayerberger - Drexel UniversityMichel W. Barsoum - Drexel UniversityMichael Farle - University of Duisburg-Essen
- Publication Details
- RSC advances, Vol.7(22), pp.13097-13103
- Publisher
- Royal Society of Chemistry
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Identifiers
- 991019167880204721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary