Two-Dimensional Titanium Carbide (MXene) as Surface-Enhanced Raman Scattering Substrate

By A. Sarycheva, T. Makaryan, K. Maleski, E. Satheeshkumar, A. Melikyan, H. Minassian, Masahiro Yoshimura, Yury Gogotsi. 2017

365 citations recorded by the source corpus.

Noble metal (gold or silver) nanoparticles or patterned films are typically used as substrates for surface-enhanced Raman spectroscopy (SERS). Two-dimensional (2D) carbides and nitrides (MXenes) exhibit unique electronic and optical properties, including metallic conductivity and plasmon resonance in the visible or near-infrared range, making them promising candidates for a wide variety of applications. Herein, we show that 2D titanium carbide, Ti3C2Tx, enhances Raman signal from organic dyes on a substrate and in solution. As a proof of concept, MXene SERS substrates were manufactured by spray-coating and used to detect several common dyes, with calculated enhancement factors reaching ∼106. Titanium carbide MXene demonstrates SERS effect in aqueous colloidal solutions, suggesting the potential for biomedical or environmental applications, where MXene can selectively enhance positively charged molecules.

Subfields: Electronic, Optical and Magnetic Materials, Materials Chemistry, Molecular Biology

View Paper: https://www.semanticscholar.org/paper/f83d1fa9b73545f51e4bd62c10505b6a54236bbf

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In Electronic, Optical and Magnetic Materials

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Citations in the corpus

• MXetronics: Electronic and photonic applications of MXenes (2019, methodology): “later reported enhanced SERS performance of Ti3C2Tx MXene using HCl-LiF route, which can detect 10 -7 M of Rhodamine 6G, and 10 M of methylene blue, crystal violet, and acid blue dyes without embedded nanoparticles.[84]”