4:15 PM - 4:30 PM
[18p-211A-12] Electrically detected magnetic resonance of π-conjugated molecular devices and magnetic-resonance-driven neural synapse-mimicking device
Keywords:organic semiconductor, electrically detected magnetic resonance, neuromorphic device
π-Conjugated molecules have received much attention for use as electronic materials with low cost, light weight, and flexibility. Particularly most organic semiconductors have been attractive because of long electron spin coherent time, which would be suitable for spintronic applications. Charge and/or spin carrier dynamics in electronic devices are influenced by various factors including hyperfine and spin-orbit couplings. Atomic- or molecular-level experimental methodologies accessible to the carrier dynamics are indispensable for further improvements on device characteristics. In this presentation, we shall describe a novel variable-frequency simultaneous electron spin resonance(ESR)/ electrically detected magnetic resonance(EDMR) instrument that is suitable for device measurements and its application to clarification of spin-dependent conduction processes in some organic Schottky barrier diodes including pentacene or regioregular poly(3-hexylthiophene) as a semiconductor. Furthermore, we shall also present the possible application of the ESR/EDMR experiment as a neuromorphic device that is based on a magnetic-resonance-driven operation.