ORGANIC MIXED IONIC-ELECTRONIC CONDUCTORS (OMIECs) FOR NEUROMORPHIC BIOELECTRONICS
Abstract
Future bio-electronic devices will require semiconductors amenable to novel fabrication methods, architectures, and operational modes and where electronic and ionic charge transport are strongly coupled. This technology is of great DoD relevance for new low-power biosensor and neuromorphic applications. In this three-year research project, our collaborative US-Taiwan team will develop and integrate new solution processable hole-electron transporting (p--n-type) organic mixed ionic-electronic conductors (OMIECs) for neuromorphic bioelectronics based on organic electrochemical transistors (OECTs). Three interconnected tasks will be pursued. Task 1, led by the synthetic Taiwanese PIs, Prof. Ming-Chou Chen (National Central University) and Prof. Chen-Yu Yeh (National Chung-Hsing University), and partially supported by the US PI, Prof. Antonio Facchetti (Georgia Institute of Technology) will develop, characterize, and scale new heterocyclic donor, spacer and acceptor based small molecule and polymer OMIECs. Deliverable 1- New design rules for OMIECs and materials for device fabrication. In Task 2 Prof. Cheng-Liang Liu (National Taiwan University) and Facchetti will evaluate OMIECs in a conventional (lateral) OECT architecture fabricated through different solution-processing techniques. An essential part of this Task is to characterize OMIEC film morphology and microstructure. Deliverable 2. High performance OIMECs and structure-processing-performance correlations. Finally, in Task 3 the US PI will investigate the best OIMECs in new vertical OECT (vOECT) architectures, fabricate complementary building block circuits and demonstrate their use for neuromorphic functions. Deliverable 3. OMIEC structure-OECT architecture-performance relationships, new building block circuits for bioelectronics, and OECT-based neuromorphic devices. Tasks 1-3 will provide the understanding needed to achieve an innovative and structurally versatile set of ionic-electronic conductors, new relationships between OMIECT chemical structures-film processing-thin film morphologies and electronic-ionic charge transport as well as DoD-relevant proof-of-concept neuromorphic OECT circuits.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 05, 2025
- Source ID
- FA23862414040
Entities
People
- Antonio Facchetti
Organizations
- Air Force Office of Scientific Research
- United States Air Force