Journal article
Evaluation of two-dimensional transition-metal carbides and carbonitrides (MXenes) for SERS substrates
MRS bulletin, v 47(6), pp 545-554
17 Mar 2022
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
This initial report demonstrates the family of two-dimensional transition-metal carbides and carbonitrides (MXenes) as promising plasmonic materials for surface-enhanced Raman spectroscopy (SERS), allowing sensitive detection of analyte molecules. Their surface plasmon resonances, metallic characters, and rich surface chemistries enable both SERS electromagnetic and chemical enhancements. We have synthesized seven MXenes-Nb2C, Mo2C, Ti2C, V2C, Ti3C2, Mo2TiC2, and Ti3CN, of which only Ti3C2 and Nb2C have been explored as pristine substrates for SERS applications. All explored MXenes could detect the 10(-7) M concentrations of Rhodamine 6G dye. Ti3C2 and Ti2C show the highest enhancement and were compared to the commercially available substrates, where Ti3C2 outperformed gold nanoparticles. Additionally, the best-performing MXene was tested with a variety of dyes, suggesting the versatility of MXene sensing. Due to high charge carrier densities and tunable surface chemistries, MXenes show potential for SERS sensors that are inexpensive, easy to fabricate and optimize for specific applications.
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Details
- Title
- Evaluation of two-dimensional transition-metal carbides and carbonitrides (MXenes) for SERS substrates
- Creators
- Kateryna Shevchuk - Drexel UniversityAsia Sarycheva - Drexel UniversityYury Gogotsi - Drexel University
- Publication Details
- MRS bulletin, v 47(6), pp 545-554
- Publisher
- Springer Nature
- Number of pages
- 10
- Grant note
- W911NF-18-2-0026 / Army Research Office
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering; A.J. Drexel Nanomaterials Institute
- Web of Science ID
- WOS:000770210400002
- Scopus ID
- 2-s2.0-85126431879
- Other Identifier
- 991019167586004721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Physics, Applied