Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Development of a Photonic Switch via Electro-Capillarity-Induced Water Penetration Across a 10-nm Gap

Authors
Yu, Eui-SangChae, KyominKim, TaehyunLee, JongsuSeo, JungmokKim, In SooChung, Aram J.Lee, Sin-DooRyu, Yong-Sang
Issue Date
4월-2022
Publisher
WILEY-V C H VERLAG GMBH
Keywords
Fabry-Perot resonators; nanogaps; refractive index sensors; tunable structural color; wetting transition
Citation
SMALL, v.18, no.14
Indexed
SCIE
SCOPUS
Journal Title
SMALL
Volume
18
Number
14
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/139011
DOI
10.1002/smll.202107060
ISSN
1613-6810
Abstract
With narrow and dense nanoarchitectures increasingly adopted to improve optical functionality, achieving the complete wetting of photonic devices is required when aiming at underwater molecule detection over the water-repellent optical materials. Despite continuous advances in photonic applications, real-time monitoring of nanoscale wetting transitions across nanostructures with 10-nm gaps, the distance at which photonic performance is maximized, remains a chronic hurdle when attempting to quantify the water influx and molecules therein. For this reason, the present study develops a photonic switch that transforms the wetting transition into perceivable color changes using a liquid-permeable Fabry-Perot resonator. Electro-capillary-induced Cassie-to-Wenzel transitions produce an optical memory effect in the photonic switch, as confirmed by surface-energy analysis, simulations, and an experimental demonstration. The results show that controlling the wetting behavior using the proposed photonic switch is a promising strategy for the integration of aqueous media with photonic hotspots in plasmonic nanostructures such as biochemical sensors.
Files in This Item
There are no files associated with this item.
Appears in
Collections
Graduate School > Department of Bioengineering > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Altmetrics

Total Views & Downloads

BROWSE