基于生物材料介电层的有机滞回反相器用于人工神经元电路

Inspired by the human brain, the development of artificial neurons is crucial for realizing spiking neural networks that leverage spatiotemporal processing through discrete spike transmissions. In this work, we demonstrate an organic hysteretic inverter featuring as an inverting Schmitt-trigger-like unit, in which both the p -type and n-type organic thin-film transistors (OTFTs) are based on a biomaterial gate dielectric of deoxyribonucleic acid complexed with cetyltrimethylammonium (DNA-CTMA). The polarization merit of the DNA-CTMA dielectric layer empowers the inverter with a stable memory window, which is fully utilized to initiate an electronic leaky integrate-and-fire (LIF) neuron that is capable of integrating input current spikes and firing output voltage spikes. Our approach indicates the feasibility to harness organic semiconductors and biomaterials for constructing flexible and biocompatible neuromorphic computing hardware.