Effects of laser power and substrate on the Raman shift of carbon-nanotube papers

Fuqian Yang; Shanshan Wang; Yulin Zhang

doi:10.1016/j.cartre.2020.100009

Effects of laser power and substrate on the Raman shift of carbon-nanotube papers

Fuqian Yang, Shanshan Wang, Yulin Zhang

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

The progress in the fabrication of carbon-nanotube-based structures has made it possible to use Raman spectroscopy to measure the deformation states of carbon nanotubes and abutting materials. In this work, we investigate the effects of laser power and surrounding materials on the Raman shift of carbon-nanotube (CNT) papers for the laser intensity in a range of 0.071 to 1.415 kW/mm² without action of mechanical loading. Two different configurations of the CNT papers are used in the Raman measurement; one uses a suspended CNT paper, and the other places a CNT paper on a glass or aluminum substrate. The experimental results reveal that there exist combinational effects of the laser power and abutting materials on the changes of the wavenumbers of the D, G and G′ bands of the CNT papers. We derive an analytical relation between the strain components, temperature and the change of the wavenumber of the Raman peak, which yields a proportional relationship between the change of the wavenumber of the Raman peak and the laser power. Such a relationship is supported by the experimental results.

Original language	English
Article number	100009
Journal	Carbon Trends
Volume	1
DOIs	https://doi.org/10.1016/j.cartre.2020.100009
State	Published - Nov 2020

Bibliographical note

Publisher Copyright:
© 2020

Funding

FY is grateful for the support by the NSF through the grant CMMI-1634540, monitored by Drs. Khershed Cooper and Thomas Francis Kuech, and CBET- 2018411 monitored by Dr. Nora F Savage. The authors thank Dr. Qingwen Li of Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou for providing the CNT papers. FY is grateful for the support by the NSF through the grant CMMI-1634540 , monitored by Drs. Khershed Cooper and Thomas Francis Kuech, and CBET - 2018411 monitored by Dr. Nora F Savage. The authors thank Dr. Qingwen Li of Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou for providing the CNT papers.

Funders	Funder number
National Science Foundation Arctic Social Science Program	CMMI-1634540, CBET - 2018411
Chinese Academy of Sciences

Keywords

Carbon-nanotube papers
Laser power
Raman shift
Thermoelastic deformation

ASJC Scopus subject areas

Chemistry (miscellaneous)
Materials Science (miscellaneous)
Materials Chemistry

Access to Document

10.1016/j.cartre.2020.100009

Cite this

@article{63e685690ac54b0a86e7a1f4502842e3,

title = "Effects of laser power and substrate on the Raman shift of carbon-nanotube papers",

abstract = "The progress in the fabrication of carbon-nanotube-based structures has made it possible to use Raman spectroscopy to measure the deformation states of carbon nanotubes and abutting materials. In this work, we investigate the effects of laser power and surrounding materials on the Raman shift of carbon-nanotube (CNT) papers for the laser intensity in a range of 0.071 to 1.415 kW/mm2 without action of mechanical loading. Two different configurations of the CNT papers are used in the Raman measurement; one uses a suspended CNT paper, and the other places a CNT paper on a glass or aluminum substrate. The experimental results reveal that there exist combinational effects of the laser power and abutting materials on the changes of the wavenumbers of the D, G and G′ bands of the CNT papers. We derive an analytical relation between the strain components, temperature and the change of the wavenumber of the Raman peak, which yields a proportional relationship between the change of the wavenumber of the Raman peak and the laser power. Such a relationship is supported by the experimental results.",

keywords = "Carbon-nanotube papers, Laser power, Raman shift, Thermoelastic deformation",

author = "Fuqian Yang and Shanshan Wang and Yulin Zhang",

note = "Publisher Copyright: {\textcopyright} 2020",

year = "2020",

month = nov,

doi = "10.1016/j.cartre.2020.100009",

language = "English",

volume = "1",

}

TY - JOUR

T1 - Effects of laser power and substrate on the Raman shift of carbon-nanotube papers

AU - Yang, Fuqian

AU - Wang, Shanshan

AU - Zhang, Yulin

PY - 2020/11

Y1 - 2020/11

N2 - The progress in the fabrication of carbon-nanotube-based structures has made it possible to use Raman spectroscopy to measure the deformation states of carbon nanotubes and abutting materials. In this work, we investigate the effects of laser power and surrounding materials on the Raman shift of carbon-nanotube (CNT) papers for the laser intensity in a range of 0.071 to 1.415 kW/mm2 without action of mechanical loading. Two different configurations of the CNT papers are used in the Raman measurement; one uses a suspended CNT paper, and the other places a CNT paper on a glass or aluminum substrate. The experimental results reveal that there exist combinational effects of the laser power and abutting materials on the changes of the wavenumbers of the D, G and G′ bands of the CNT papers. We derive an analytical relation between the strain components, temperature and the change of the wavenumber of the Raman peak, which yields a proportional relationship between the change of the wavenumber of the Raman peak and the laser power. Such a relationship is supported by the experimental results.

AB - The progress in the fabrication of carbon-nanotube-based structures has made it possible to use Raman spectroscopy to measure the deformation states of carbon nanotubes and abutting materials. In this work, we investigate the effects of laser power and surrounding materials on the Raman shift of carbon-nanotube (CNT) papers for the laser intensity in a range of 0.071 to 1.415 kW/mm2 without action of mechanical loading. Two different configurations of the CNT papers are used in the Raman measurement; one uses a suspended CNT paper, and the other places a CNT paper on a glass or aluminum substrate. The experimental results reveal that there exist combinational effects of the laser power and abutting materials on the changes of the wavenumbers of the D, G and G′ bands of the CNT papers. We derive an analytical relation between the strain components, temperature and the change of the wavenumber of the Raman peak, which yields a proportional relationship between the change of the wavenumber of the Raman peak and the laser power. Such a relationship is supported by the experimental results.

KW - Carbon-nanotube papers

KW - Laser power

KW - Raman shift

KW - Thermoelastic deformation

UR - http://www.scopus.com/inward/record.url?scp=85123071183&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85123071183&partnerID=8YFLogxK

U2 - 10.1016/j.cartre.2020.100009

DO - 10.1016/j.cartre.2020.100009

M3 - Article

AN - SCOPUS:85123071183

VL - 1

JO - Carbon Trends

JF - Carbon Trends

M1 - 100009

ER -

Effects of laser power and substrate on the Raman shift of carbon-nanotube papers

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this