Voltage-gated optics and plasmonics enabled by solid-state proton pumping
Name
s41467-019-13131-3.pdf
Description
Published version
Size
1.31 MB
Format
Adobe PDF
Checksum (MD5)
f4ef0ea3d93495de2e3e735215e30919
Author(s)
Huang, Mantao
Tan, Aik Jun
Büttner, Felix
Date Issued
November 6, 2019
Journal
Nature communications
Publisher
Springer Science and Business Media LLC
Citation
Huang, Mantao et al. "Voltage-gated optics and plasmonics enabled by solid-state proton pumping." Nature communications 10 (2019): 5030 © 2019 The Author(s)
Version
Final published version
Abstract
Devices with locally-addressable and dynamically tunable optical properties underpin emerging technologies such as high-resolution reflective displays and dynamic holography. The optical properties of metals such as Y and Mg can be reversibly switched by hydrogen loading, and hydrogen-switched mirrors and plasmonic devices have been realized, but challenges remain to achieve electrical, localized and reversible control. Here we report a nanoscale solid-state proton switch that allows for electrical control of optical properties through electrochemical hydrogen gating. We demonstrate the generality and versatility of this approach by realizing tunability of a range of device characteristics including transmittance, interference color, and plasmonic resonance. We further discover and exploit a giant modulation of the effective refractive index of the gate dielectric. The simple gate structure permits device thickness down to ~20 nanometers, which can enable device scaling into the deep subwavelength regime, and has potential applications in addressable plasmonic devices and reconfigurable metamaterials.
Subjects
General Biochemistry, Genetics and Molecular Biology
General Physics and Astronomy
General Chemistry
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1038/s41467-019-13131-3
