Simultaneous ultrafast transmission and reflection of nanometer-thick Ti3C2Tx MXene films in the visible and near-infrared: Implications for energy storage, electromagnetic shielding, and laser systems

David B. Lioi; W. Joshua Kennedy; Peter R. Stevenson; Bryan T. Seymour; Gregory Neher; Richard D. Schaller; David J. Gosztola; Richard A. Vaia; Jonathon P. Vernon

doi:10.1021/acsanm.0c01644

Simultaneous ultrafast transmission and reflection of nanometer-thick Ti₃C₂T_x MXene films in the visible and near-infrared: Implications for energy storage, electromagnetic shielding, and laser systems

David B. Lioi^*, W. Joshua Kennedy, Peter R. Stevenson, Bryan T. Seymour, Gregory Neher, Richard D. Schaller, David J. Gosztola, Richard A. Vaia, Jonathon P. Vernon

^*Corresponding author for this work

Chemistry

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

24 Scopus citations

Abstract

Unambiguous determination of the optical dynamics in MXenes is necessary for their reliable development into applications such as EMI shielding, energy storage, and laser systems. Here, simultaneous ultrafast transmission and reflection (SUTR) is used to determine the temporal change in refractory index (n) and extinction coefficient (k) of Ti₃C₂T_x from 450 to 1300 nm which is dominated by intraflake mechanisms. We assign the dynamics for wavelengths below 600 nm with interband transitions, while those at 800 nm are assigned to a plasmon resonance. The response from 1000 to 1300 nm shows changes in index of refraction with no changes in extinction coefficient, consistent with free carriers.

Original language	English (US)
Pages (from-to)	9604-9609
Number of pages	6
Journal	ACS Applied Nano Materials
Volume	3
Issue number	10
DOIs	https://doi.org/10.1021/acsanm.0c01644
State	Published - Oct 23 2020

Funding

The authors thank Dr. Ruth Pachter and Dr. Dhriti Nepal for useful discussions, as well as Dr. Ali Sayir at the Air Force Office of Scientific Research for funding this research under award 18RXCOR043 Ceramic Nanolaminates for Electromagnetic Shielding. This work was also funded by the Materials and Manufacturing directorate within the U.S. Air Force Research Laboratory via contract numbers FA8650-16-D-5404 and FA8650-16-D-5244. Use of the Center for Nanoscale Materials, an Office of Science user facility, was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.

Keywords

Ellipsometry
MXenes
Simultaneous ultrafast transmission and reflection
Surface plasmon
TiC

ASJC Scopus subject areas

General Materials Science

Access to Document

10.1021/acsanm.0c01644

Cite this

Lioi, D. B., Joshua Kennedy, W., Stevenson, P. R., Seymour, B. T., Neher, G., Schaller, R. D., Gosztola, D. J., Vaia, R. A., & Vernon, J. P. (2020). Simultaneous ultrafast transmission and reflection of nanometer-thick Ti₃C₂T_x MXene films in the visible and near-infrared: Implications for energy storage, electromagnetic shielding, and laser systems. ACS Applied Nano Materials, 3(10), 9604-9609. https://doi.org/10.1021/acsanm.0c01644

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title = "Simultaneous ultrafast transmission and reflection of nanometer-thick Ti3C2Tx MXene films in the visible and near-infrared: Implications for energy storage, electromagnetic shielding, and laser systems",

abstract = "Unambiguous determination of the optical dynamics in MXenes is necessary for their reliable development into applications such as EMI shielding, energy storage, and laser systems. Here, simultaneous ultrafast transmission and reflection (SUTR) is used to determine the temporal change in refractory index (n) and extinction coefficient (k) of Ti3C2Tx from 450 to 1300 nm which is dominated by intraflake mechanisms. We assign the dynamics for wavelengths below 600 nm with interband transitions, while those at 800 nm are assigned to a plasmon resonance. The response from 1000 to 1300 nm shows changes in index of refraction with no changes in extinction coefficient, consistent with free carriers.",

keywords = "Ellipsometry, MXenes, Simultaneous ultrafast transmission and reflection, Surface plasmon, TiC",

author = "Lioi, {David B.} and {Joshua Kennedy}, W. and Stevenson, {Peter R.} and Seymour, {Bryan T.} and Gregory Neher and Schaller, {Richard D.} and Gosztola, {David J.} and Vaia, {Richard A.} and Vernon, {Jonathon P.}",

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Lioi, DB, Joshua Kennedy, W, Stevenson, PR, Seymour, BT, Neher, G, Schaller, RD, Gosztola, DJ, Vaia, RA & Vernon, JP 2020, 'Simultaneous ultrafast transmission and reflection of nanometer-thick Ti₃C₂T_x MXene films in the visible and near-infrared: Implications for energy storage, electromagnetic shielding, and laser systems', ACS Applied Nano Materials, vol. 3, no. 10, pp. 9604-9609. https://doi.org/10.1021/acsanm.0c01644

Simultaneous ultrafast transmission and reflection of nanometer-thick Ti₃C₂T_x MXene films in the visible and near-infrared: Implications for energy storage, electromagnetic shielding, and laser systems. / Lioi, David B.; Joshua Kennedy, W.; Stevenson, Peter R. et al.
In: ACS Applied Nano Materials, Vol. 3, No. 10, 23.10.2020, p. 9604-9609.

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

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