Electrostatically Tunable Near‐Infrared Plasmonic Resonances in Solution‐Processed Atomically Thin NbSe2

Page view(s)
29
Checked on Jul 13, 2022
Electrostatically Tunable Near‐Infrared Plasmonic Resonances in Solution‐Processed Atomically Thin NbSe2
Title:
Electrostatically Tunable Near‐Infrared Plasmonic Resonances in Solution‐Processed Atomically Thin NbSe2
Other Titles:
Advanced Materials
Publication Date:
27 June 2021
Citation:
Zhao, M., Li, J., Sebek, M., Yang, L., Liu, Y. J., Bosman, M., … Teng, J. (2021). Electrostatically Tunable Near‐Infrared Plasmonic Resonances in Solution‐Processed Atomically Thin NbSe2. Advanced Materials, 33(32), 2101950. doi:10.1002/adma.202101950
Abstract:
In the broad spectral range, near-infrared (NIR) plasmonics finds applications in telecommunication, energy harvesting, sensing, etc., all of which would benefit from an electrostatically controllable NIR plasmon source. However, bulk NIR plasmonics is difficult to control directly with electrostatics because of the strong electric-field screening effect and high carrier concentration required to support NIR plasmons. Here this constraint is overcome and the observation of NIR plasmonic resonances that can be modulated electrostatically over a range of ~ 360 cm-1 in few-layer NbSe2 gratings is reported, thanks to the enhanced electrostatics of atomically thin two-dimensional (2D) materials and the high-quality film produced by solution method. NbSe2 plasmons also render strong field confinement due to their atomic thickness and provide an extra degree of resonance frequency modulation from the layered structure. Our study identifies metallic 2D materials as promising (easily produced and well-performing) candidates to extend electrostatically tunable plasmonics to the technologically important NIR range.
License type:
Publisher Copyright
Funding Info:
This research / project is supported by the A*STAR - HBMS IAF-PP
Grant Reference no. : H19H6a0025

This research / project is supported by the A*STAR - 2D Pharos Program
Grant Reference no. : 152 700014

This research / project is supported by the A*STAR - SERC CDA
Grant Reference no. : A1820g0088
Description:
This is the peer reviewed version of the following article: Zhao, M., Li, J., Sebek, M., Yang, L., Liu, Y. J., Bosman, M., … Teng, J. (2021). Electrostatically Tunable Near‐Infrared Plasmonic Resonances in Solution‐Processed Atomically Thin NbSe2. Advanced Materials, 33(32), 2101950. doi:10.1002/adma.202101950, which has been published in final form at http://dx.doi.org/10.1002/adma.202101950. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions
ISSN:
1521-4095
0935-9648
Files uploaded:

Files uploaded:

File Size Format Action
tunable-nir-plasmonics-in-nbse2-aoa.pdf 1.24 MB PDF Open