Chemosensory Synaptic Device Based on Amine-Functionalized Semiconductor Polymer Network for Gas Recognition
발표자
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초록
내용
Inspired by the human olfactory system, various artificial olfactory systems have been developed for detecting, filtering, and memorizing chemical signals for recognition. However, they suffer from low sensitivity, high energy consumption, and lack of long-term memory capabilities, crucial for recognition of accumulated gas molecules over time. Here, inspired by the neuronal network of the olfactory receptor, we present an artificial chemosensory synapse that effectively detects NO2 gas and mimics the release mechanisms of neurotransmitters in the synapses between olfactory receptor neurons. This synaptic device is based on amine-functionalized semiconducting polymer network, gated by iongel electrolyte within an organic electrochemical transistor architecture, enabling low voltage operations. The NH2 groups exhibit electron-donating properties that form strong interactions with electron-accepting NO2 gas molecules, resulting in high sensitivity and significant memory retention.