Plasmonic Organic Electrochemical Transistors (POECTs) for Highly Enhanced Sensing

Technology #11649

Key Points

  • Plasmonic organic electrochemical transistor (POECT) device that synchronizes the inherent advantages of OECTs and the enhanced sensitivity of plasmonics
  • Can be used as a sensor for many biomolecules, including enzyme, enzyme-free biomolecules, bacteria, viruses, and cells


The University of Central Florida invention is a new type of organic electrochemical transistor (OECT) called the plasmonic OECT (POECT). The invention leverages the near-field effect of plasmonics to increase the sensitivity of OECTs. Organic electrochemical transistors (OECTs) marked a rapid growth in recent years due to their attractive applications in biosensing, neuromorphic computing and human-machine interface systems. Among all biosensors, OECTs have advantages of high sensitivity, flexibility, biocompatibility, and ease-of-fabrication for commercial applications. The critical and most useful characteristics of the OECT are:

  • High transconductance (making it highly sensitive)
  • The low working voltage required for wearable medical sensing—includes biomolecules (enzyme and enzyme-free biomolecules), bacteria, viruses and cells