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

Asia Sarycheva, Taron Makaryan, Kathleen Maleski, Elumalai Satheeshkumar, Armen Melikyan, Hayk Minassian, Masahiro Yoshimura, Yury Gogotsi

研究成果: Article同行評審

126 引文 斯高帕斯(Scopus)

摘要

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.

原文English
頁(從 - 到)19983-19988
頁數6
期刊Journal of Physical Chemistry C
121
發行號36
DOIs
出版狀態Published - 2017 九月 14

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 能源(全部)
  • 物理與理論化學
  • 表面、塗料和薄膜

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