KFU. Card publication. Spectrally Resolving Coherent TERS Spectroscopy of Electrically Biased Carbon-Coated Fibers

KAZAN
FEDERAL UNIVERSITY

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SPECTRALLY RESOLVING COHERENT TERS SPECTROSCOPY OF ELECTRICALLY BIASED CARBON-COATED FIBERS

Form of presentation

Articles in international journals and collections

Year of publication

2020

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Authors, employees of KFU

Fishman Aleksandr Izrailovich, author

Kharincev Sergey Sergeevich, author

Authors, postgraduates KFU

Saparina Svetlana Vyacheslavovna, postgraduate kfu

Bibliographic description in the original language

Kharintsev S.S. Spectrally Resolving Coherent TERS Spectroscopy of Electrically Biased Carbon-Coated Fibers / S.S. Kharintsev, S.V.Saparina, A.I.Fishman, A.A.Stolov, J.Li// J. Phys. Chem. C.- 2020.- V.124, N27.-P.14752–14758 https://dx.doi.org/10.1021/acs.jpcc.0c05228

Annotation

Tip-enhanced Raman scattering (TERS) represents an advanced spectroscopic tool that enables probing a specimen on scales far beyond the diffraction limit. An investigation of two-dimensional systems reveals a striking feature of TERS, when the near-field intensity is governed by the 8th and 10th power of the tip−sample distance for the coherent and incoherent scattering cases, respectively. Physically, the coherent TERS response can be observed when the excitation spot size does not exceed the phonon coherence length. In this paper, we demonstrate spectrally resolving capabilities of coherent TERS spectroscopy when studying electrically biased amorphous carbon films. Local electro-annealing at hot spots was found to activate temperature dependent molecular transformations such as an expansion of the defect-free sp2 domains network at temperatures above 400 ?C. Electro-assisted TERS allows one to directly visualize the presence of water-decorated carboxyl/hydroxyl groups at the edge carbon atoms.

Keywords

TERS, carbon films, electro-annealing

The name of the journal

J. Phys. Chem. C

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=234655&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Fishman Aleksandr Izrailovich	ru_RU
dc.contributor.author	Kharincev Sergey Sergeevich	ru_RU
dc.contributor.author	Saparina Svetlana Vyacheslavovna	ru_RU
dc.date.accessioned	2020-01-01T00:00:00Z	ru_RU
dc.date.available	2020-01-01T00:00:00Z	ru_RU
dc.date.issued	2020	ru_RU
dc.identifier.citation	Kharintsev S.S. Spectrally Resolving Coherent TERS Spectroscopy of Electrically Biased Carbon-Coated Fibers / S.S. Kharintsev, S.V.Saparina, A.I.Fishman, A.A.Stolov, J.Li// J. Phys. Chem. C.- 2020.- V.124, N27.-P.14752–14758 https://dx.doi.org/10.1021/acs.jpcc.0c05228	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=234655&p_lang=2	ru_RU
dc.description.abstract	J. Phys. Chem. C	ru_RU
dc.description.abstract	Tip-enhanced Raman scattering (TERS) represents an advanced spectroscopic tool that enables probing a specimen on scales far beyond the diffraction limit. An investigation of two-dimensional systems reveals a striking feature of TERS, when the near-field intensity is governed by the 8th and 10th power of the tip−sample distance for the coherent and incoherent scattering cases, respectively. Physically, the coherent TERS response can be observed when the excitation spot size does not exceed the phonon coherence length. In this paper, we demonstrate spectrally resolving capabilities of coherent TERS spectroscopy when studying electrically biased amorphous carbon films. Local electro-annealing at hot spots was found to activate temperature dependent molecular transformations such as an expansion of the defect-free sp2 domains network at temperatures above 400 ?C. Electro-assisted TERS allows one to directly visualize the presence of water-decorated carboxyl/hydroxyl groups at the edge carbon atoms.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	TERS	ru_RU
dc.subject	carbon films	ru_RU
dc.subject	electro-annealing	ru_RU
dc.title	Spectrally Resolving Coherent TERS Spectroscopy of Electrically Biased Carbon-Coated Fibers	ru_RU
dc.type	Articles in international journals and collections	ru_RU