Noncontact tip-enhanced Raman spectroscopy for nanomaterials and biomedical applications

Dmitry N. Voylov; Vera Bocharova; Nickolay V. Lavrik; Ivan Vlassiouk; Georgios Polizos; Alexei Volodin; Yury M. Shulga; Alexander Kisliuk; Thirumagal Thiyagarajan; Duane D. Miller; Ramesh Narayanan; Bobby G. Sumpter; Alexei P. Sokolov

doi:10.1039/c9na00322c

Noncontact tip-enhanced Raman spectroscopy for nanomaterials and biomedical applications

Dmitry N. Voylov, Vera Bocharova, Nickolay V. Lavrik, Ivan Vlassiouk, Georgios Polizos, Alexei Volodin, Yury M. Shulga, Alexander Kisliuk, Thirumagal Thiyagarajan, Duane D. Miller, Ramesh Narayanan, Bobby G. Sumpter, Alexei P. Sokolov

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8 Scopus citations

Abstract

Tip-enhanced Raman spectroscopy (TERS) has been established as one the most efficient analytical techniques for probing vibrational states with nanoscale resolution. While TERS may be a source of unique information about chemical structure and interactions, it has a limited use for materials with rough or sticky surfaces. Development of the TERS approach utilizing a non-contact scanning probe microscopy mode can significantly extend the number of applications. Here we demonstrate a proof of the concept and feasibility of a non-contact TERS approach and test it on various materials. Our experiments show that non-contact TERS can provide 10 nm spatial resolution and a Raman signal enhancement factor of 10⁵, making it very promising for chemical imaging of materials with high aspect ratio surface patterns and biomaterials.

Original language	English
Pages (from-to)	3392-3399
Number of pages	8
Journal	Nanoscale Advances
Volume	1
Issue number	9
DOIs	https://doi.org/10.1039/c9na00322c
State	Published - 2019

Funding

This work was supported by Laboratory Directed Research and Development program of Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U.S. Department of Energy. D. V., V. B., A. K. and A. P. S. thanks the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Science & Engineering Division for partial nancial support. G. P. acknowledges nancial support by the U.S. Department of Energy's Office of Vehicle Technologies. A portion of this research was conducted at the Center for Nanophase Materials Sciences, which is a U.S. Department of Energy Office of Science User Facility. Oak Ridge National Laboratory is operated for the U.S. Department of Energy by UT-Battelle under contract no. DE-AC05-00OR22725.

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title = "Noncontact tip-enhanced Raman spectroscopy for nanomaterials and biomedical applications",

abstract = "Tip-enhanced Raman spectroscopy (TERS) has been established as one the most efficient analytical techniques for probing vibrational states with nanoscale resolution. While TERS may be a source of unique information about chemical structure and interactions, it has a limited use for materials with rough or sticky surfaces. Development of the TERS approach utilizing a non-contact scanning probe microscopy mode can significantly extend the number of applications. Here we demonstrate a proof of the concept and feasibility of a non-contact TERS approach and test it on various materials. Our experiments show that non-contact TERS can provide 10 nm spatial resolution and a Raman signal enhancement factor of 105, making it very promising for chemical imaging of materials with high aspect ratio surface patterns and biomaterials.",

author = "Voylov, \{Dmitry N.\} and Vera Bocharova and Lavrik, \{Nickolay V.\} and Ivan Vlassiouk and Georgios Polizos and Alexei Volodin and Shulga, \{Yury M.\} and Alexander Kisliuk and Thirumagal Thiyagarajan and Miller, \{Duane D.\} and Ramesh Narayanan and Sumpter, \{Bobby G.\} and Sokolov, \{Alexei P.\}",

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doi = "10.1039/c9na00322c",

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T1 - Noncontact tip-enhanced Raman spectroscopy for nanomaterials and biomedical applications

AU - Voylov, Dmitry N.

AU - Bocharova, Vera

AU - Lavrik, Nickolay V.

AU - Vlassiouk, Ivan

AU - Polizos, Georgios

AU - Volodin, Alexei

AU - Shulga, Yury M.

AU - Kisliuk, Alexander

AU - Thiyagarajan, Thirumagal

AU - Miller, Duane D.

AU - Narayanan, Ramesh

AU - Sumpter, Bobby G.

AU - Sokolov, Alexei P.

PY - 2019

Y1 - 2019

N2 - Tip-enhanced Raman spectroscopy (TERS) has been established as one the most efficient analytical techniques for probing vibrational states with nanoscale resolution. While TERS may be a source of unique information about chemical structure and interactions, it has a limited use for materials with rough or sticky surfaces. Development of the TERS approach utilizing a non-contact scanning probe microscopy mode can significantly extend the number of applications. Here we demonstrate a proof of the concept and feasibility of a non-contact TERS approach and test it on various materials. Our experiments show that non-contact TERS can provide 10 nm spatial resolution and a Raman signal enhancement factor of 105, making it very promising for chemical imaging of materials with high aspect ratio surface patterns and biomaterials.

AB - Tip-enhanced Raman spectroscopy (TERS) has been established as one the most efficient analytical techniques for probing vibrational states with nanoscale resolution. While TERS may be a source of unique information about chemical structure and interactions, it has a limited use for materials with rough or sticky surfaces. Development of the TERS approach utilizing a non-contact scanning probe microscopy mode can significantly extend the number of applications. Here we demonstrate a proof of the concept and feasibility of a non-contact TERS approach and test it on various materials. Our experiments show that non-contact TERS can provide 10 nm spatial resolution and a Raman signal enhancement factor of 105, making it very promising for chemical imaging of materials with high aspect ratio surface patterns and biomaterials.

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JO - Nanoscale Advances

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Noncontact tip-enhanced Raman spectroscopy for nanomaterials and biomedical applications

Abstract

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