TY - JOUR
T1 - Two-Dimensional Titanium Carbide (MXene) as Surface-Enhanced Raman Scattering Substrate
AU - Sarycheva, Asia
AU - Makaryan, Taron
AU - Maleski, Kathleen
AU - Satheeshkumar, Elumalai
AU - Melikyan, Armen
AU - Minassian, Hayk
AU - Yoshimura, Masahiro
AU - Gogotsi, Yury
N1 - Funding Information:
This work was funded by the Fluid Interface Reactions, Structures and Transport (FIRST) Center, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences. The authors are grateful to the Centralized Research Facilities (CRF) of Drexel University for access to the SEM. We also thank Tyler Mathis for help with SEM imaging and Tomas Polakovic for AFM (Drexel University).
Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/9/14
Y1 - 2017/9/14
N2 - 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.
AB - 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.
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U2 - 10.1021/acs.jpcc.7b08180
DO - 10.1021/acs.jpcc.7b08180
M3 - Article
AN - SCOPUS:85029513605
VL - 121
SP - 19983
EP - 19988
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
SN - 1932-7447
IS - 36
ER -