Plasmonic organic electrochemical transistors for enhanced sensing  

作　　者：Jinxin Li Foram Madiyar Sahil Ghate Kowsik Sambath Kumar Jayan Thomas 

机构地区：[1]CREOL,The College of Optics and Photonics,University of Central Florida,Orlando,FL 32816,USA [2]NanoScience Technology Center,University of Central Florida,Orlando,FL 32816,USA [3]Aerospace Boulevard,Embry-Riddle Aeronautical University,Daytona Beach,FL 32114,USA [4]Department of Materials Science and Engineering University of Central Florida,Orlando,FL 32816,USA

出　　处：《Nano Research》2023年第2期3201-3206,共6页纳米研究（英文版）

基　　金：J.T.acknowledges the National Science Foundation(CAREER:ECCS-1351757)for financial support.

摘　　要：Organic electrochemical transistors(OECTs)have been hailed as highly sensitive biomolecular sensors among organic electronic devices due to their superior stability in an aqueous environment and high transconductance.At the same time,plasmon based sensors are known to provide high sensitivity for biosensing due to the highly localized plasmonic field.Here we report a plasmonic OECT(POET)device that synchronizes the advantages of OECTs and plasmonic sensors on a single platform.The platform is fabricated by a simple,cost-effective,and high-throughput nanoimprinting process,which allows plasmonic resonance peak tuning to a given visible wavelength of interest for versatile biosensing.With glucose sensing as proof,a five-times sensitivity enhancement is obtained for POET compared to a regular(non-plasmonic)OECT.Thus,the POET paves the way to a new paradigm of optoelectronic sensors that combines the inherent high sensitivity of OECTs and localized plasmonic field to sense a vast realm of biomolecules.

关 键 词：organic electrochemical transistors(OECTs) PLASMONICS nanoimprint fabrication glucose sensing plasmonic biosensing 

分 类 号：TB383[一般工业技术—材料科学与工程]