Journal article
Fabrication of Ti3C2Tx MXene Transparent Thin Films with Tunable Optoelectronic Properties
Advanced electronic materials, v 2(6), pn/a
Jun 2016
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
MXenes, a new class of 2D transition metal carbides and carbonitrides, show great promise in supercapacitors, Li‐ion batteries, fuel cells, and sensor applications. A unique combination of their metallic conductivity, hydrophilic surface, and excellent mechanical properties renders them attractive for transparent conductive electrode application. Here, a simple, scalable method is proposed to fabricate transparent conductive thin films using delaminated Ti3C2 MXene flakes by spray coating. Homogenous films, 5–70 nm thick, are produced at ambient conditions over a large area as shown by scanning electron microscopy and atomic force microscopy. The sheet resistances (Rs) range from 0.5 to 8 kΩ sq−1 at 40% to 90% transmittance, respectively, which corresponds to figures of merit (the ratio of electronic to optical conductivities, σDC/σopt) around 0.5–0.7. Flexible, transparent, and conductive films are also produced and exhibit stable Rs values at up to 5 mm bend radii. Furthermore, the films' optoelectronic properties are tuned by chemical or electrochemical intercalation of cations. The films show reversible changes of transmittance in the UV–visible region during electrochemical intercalation/deintercalation of tetramethylammonium hydroxide. This work shows the potential of MXenes to be used as transparent conductors in electronic, electrochromic, and sensor applications.
Transparent conductive thin films of titanium carbide MXene are prepared by spray coating technique. The films exhibit excellent homogeneity over a large area on glass and flexible polymer substrates. The optoelectronic properties of the films are superior to solution‐processed graphene transparent films. Tuning of the optical properties of the films is demonstrated by intercalation and deintercalation of cations.
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Details
- Title
- Fabrication of Ti3C2Tx MXene Transparent Thin Films with Tunable Optoelectronic Properties
- Creators
- Kanit Hantanasirisakul - Drexel UniversityMeng‐Qiang Zhao - Drexel UniversityPatrick Urbankowski - Drexel UniversityJoseph Halim - Drexel UniversityBabak Anasori - Drexel UniversitySankalp Kota - Drexel UniversityChang E Ren - Drexel UniversityMichel W Barsoum - Drexel UniversityYury Gogotsi - Drexel University
- Publication Details
- Advanced electronic materials, v 2(6), pn/a
- Publisher
- Wiley
- Number of pages
- 7
- Grant note
- National Science Foundation (DMR‐1310245)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000379912100005
- Scopus ID
- 2-s2.0-84975047984
- Other Identifier
- 991014969859404721
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Highly Cited Paper
- Web of Science research areas
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- Physics, Applied