Total electrification of large-scale nanophotonic arrays by frictional charges

Nikhil Bhalla, Zidong Yu, Serene Pauly, Amit Kumar, Chiranjeevi Maddi, Davide Mariotti, Pengfei Zhao, Amir Farokh Payam, Navneet Soin

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
31 Downloads (Pure)

Abstract

Localized surface plasmon resonance (LSPR) of metallic nanostructures is a unique phenomenon that controls the light in sub-wavelength volumes and enhances the light–matter interactions. Traditionally, the excitation and measurement of LSPR require bulky external light sources, and efforts to scale down to nano-plasmonic devices have predominantly relied on the system's miniaturization and associated accessories. Addressing this, here we show the generation and detection of LSPR wavelength (λLSPR) shifts in large-area nanostructured Au surfaces using frictional charges generated by triboelectric surfaces. We observe a complex interplay of the localized surface plasmons with frictional charges via concurrent spectroscopic and triboelectric measurements undertaken for the detection of bioconjugation in the streptavidin–biotin complex. When subjected to multivariate principal component analysis, a strong correlation between the triboelectric peak-to-peak voltage output response and the λLSPR shift is observed. Furthermore, we reveal a landscape of the interfacial events involved in the electrical generation/detection of the LSPR by using theoretical models and surface characterization. The demonstrated concept of electrification of plasmon resonance thus provides the underlying basis for the subsequent development of self-powered nano-plasmonic sensors and opens new horizons for advanced nanophotonic applications.
Original languageEnglish
Pages (from-to)1513-1522
Number of pages10
JournalNanoscale Horizons
Volume7
Issue number12
Early online date22 Sept 2022
DOIs
Publication statusPublished online - 22 Sept 2022

Bibliographical note

Funding Information:
XPS/UPS data collection was performed at NIBEC, Ulster University, supported by EPSRC award EP/R008841/1. The authors would also like to thank Prof. Fengnian Xia at the Department of Electrical Engineering, Yale University for helpful discussions.

Publisher Copyright:
© 2022 The Royal Society of Chemistry.

Keywords

  • General Materials Science

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