Journal article
Interfacial Assembly of Ultrathin, Functional MXene Films
ACS applied materials & interfaces, v 11(35), pp 32320-32327
04 Sep 2019
PMID: 31405272
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
MXenes are a prominent family of two-dimensional materials because of their metallic conductivity and abundant surface functionalities. Although MXenes have been extensively studied as bulk particles or free-standing films, thin and transparent films are needed for optical, optoelectronic, sensing, and other applications. In this study, we demonstrate a facile method to fabricate ultrathin (∼10 nm), Ti3C2T x MXene films by an interfacial assembly technique. The self-assembling behavior of MXene flakes resulted in films with a high stacking order and strong plane-to-plane adherence, where optimal films of 10 nm thickness displayed a low sheet resistance of 310 Ω/□. By using surface tension, films were transferred onto various types of planar and curved substrates. Moreover, multiple films were consecutively transferred onto substrates from a single batch of solution, showing the efficient use of the material. When the films were utilized as gas sensing channels, a high signal-to-noise ratio, up to 320, was observed, where the gas response of films assembled from small MXene flakes was 10 times larger than that from large flakes. This work provides a facile and efficient method to allow MXenes to be further exploited for thin-film applications.
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Details
- Title
- Interfacial Assembly of Ultrathin, Functional MXene Films
- Creators
- Seon Joon Kim - Department of Materials Science and Engineering, and A.J. Drexel Nanomaterials InstituteJunghoon ChoiKathleen Maleski - Department of Materials Science and Engineering, and A.J. Drexel Nanomaterials InstituteKanit Hantanasirisakul - Department of Materials Science and Engineering, and A.J. Drexel Nanomaterials InstituteHee-Tae JungYury Gogotsi - Department of Materials Science and Engineering, and A.J. Drexel Nanomaterials InstituteChi Won Ahn - Department of Global Nanotechnology Development
- Publication Details
- ACS applied materials & interfaces, v 11(35), pp 32320-32327
- Publisher
- American Chemical Society; Washington, DC
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000484831100081
- Scopus ID
- 2-s2.0-85071787357
- Other Identifier
- 991014970032904721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology