Journal article
Transparent Conductive Two-Dimensional Titanium Carbide Epitaxial Thin Films
Chemistry of materials, v 26(7), pp 2374-2381
08 Apr 2014
PMID: 24741204
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Since the discovery of graphene, the quest for two-dimensional (2D) materials has intensified greatly. Recently, a new family of 2D transition metal carbides and carbonitrides (MXenes) was discovered that is both conducting and hydrophilic, an uncommon combination. To date MXenes have been produced as powders, flakes, and colloidal solutions. Herein, we report on the fabrication of ∼1 × 1 cm
Ti
C
films by selective etching of Al, from sputter-deposited epitaxial Ti
AlC
films, in aqueous HF or NH
HF
. Films that were about 19 nm thick, etched with NH
HF
, transmit ∼90% of the light in the visible-to-infrared range and exhibit metallic conductivity down to ∼100 K. Below 100 K, the films' resistivity increases with decreasing temperature and they exhibit negative magnetoresistance-both observations consistent with a weak localization phenomenon characteristic of many 2D defective solids. This advance opens the door for the use of MXenes in electronic, photonic, and sensing applications.
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Details
- Title
- Transparent Conductive Two-Dimensional Titanium Carbide Epitaxial Thin Films
- Creators
- Joseph Halim - Department of Materials Science & Engineering, Drexel University , Philadelphia, Pennsylvania 19104, United States ; A.J. Drexel Nanomaterials Institute, Drexel University , Philadelphia, Pennsylvania 19104, United States ; Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University , SE-581 83, Linköping, SwedenMaria R Lukatskaya - Department of Materials Science & Engineering, Drexel University , Philadelphia, Pennsylvania 19104, United States ; A.J. Drexel Nanomaterials Institute, Drexel University , Philadelphia, Pennsylvania 19104, United StatesKevin M Cook - Department of Materials Science & Engineering, Drexel University , Philadelphia, Pennsylvania 19104, United States ; A.J. Drexel Nanomaterials Institute, Drexel University , Philadelphia, Pennsylvania 19104, United StatesJun Lu - Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University , SE-581 83, Linköping, SwedenCole R Smith - Department of Materials Science & Engineering, Drexel University , Philadelphia, Pennsylvania 19104, United StatesLars-Åke Näslund - Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University , SE-581 83, Linköping, SwedenSteven J May - Department of Materials Science & Engineering, Drexel University , Philadelphia, Pennsylvania 19104, United StatesLars Hultman - Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University , SE-581 83, Linköping, SwedenYury Gogotsi - Department of Materials Science & Engineering, Drexel University , Philadelphia, Pennsylvania 19104, United States ; A.J. Drexel Nanomaterials Institute, Drexel University , Philadelphia, Pennsylvania 19104, United StatesPer Eklund - Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University , SE-581 83, Linköping, SwedenMichel W Barsoum - Department of Materials Science & Engineering, Drexel University , Philadelphia, Pennsylvania 19104, United States ; Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University , SE-581 83, Linköping, Sweden
- Publication Details
- Chemistry of materials, v 26(7), pp 2374-2381
- Publisher
- American Chemical Society; Washington, DC
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000334572300023
- Scopus ID
- 2-s2.0-84897970582
- Other Identifier
- 991014877905104721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Physical
- Materials Science, Multidisciplinary