Degradable Photonic Synaptic Transistors Based on Natural Biomaterials and Carbon Nanotubes

Degradable photonic synaptic transistors based on chlorophyll ‐a and single‐walled carbon nanotubes are designed to successfully emulate the synaptic plasticity. Decent synaptic behaviors can still be achieved at a low voltage of −0.0001 V, which results in low energy consumption of 17.5 fJ per pulse. This work provides a new guide to the development of next‐generation green and degradable neuromorphic computing electronics. AbstractArtificial synaptic devices have potential for overcoming the bottleneck of von Neumann architecture and building artificial brain ‐like computers. Up to now, developing synaptic devices by utilizing biocompatible and biodegradable materials in electronic devices has been an interesting research direction due to the requirements of sustainable development. Here, a degradable photonic synaptic device is reported by combining b iomaterials chlorophyll‐a and single‐walled carbon nanotubes (SWCNTs). Several basic synaptic functions, including excitatory postsynaptic current (EPSC), paired pulse facilitation (PPF), transition from short‐term memory (STM) to long‐term memory (LTM), and learning and forgetting behaviors , are successfully emulated through the chlorophyll‐a/SWCNTs synaptic device. Furthermore, decent synaptic behaviors can still be achieved at a low drain voltage of −0.0001 V, which results in quite low energy consumption of 17.5 fJ per pulse. Finally, the degradability of this chlorophyll‐a/ SWCNTs transistor ar...

Source: Small - February 16, 2021 Category: Nanotechnology Authors: Qingqing Ou, Ben Yang, Junyao Zhang, Dapeng Liu, Tianqi Chen, Xin Wang, Dandan Hao, Yang Lu, Jia Huang Tags: Full Paper Source Type: research