| 초록 |
Nitrogen dioxide (NO2) gas that is accumulated in our body can cause progressive inflammation and chronic respiratory disease. In this regard, high-performance artificial sensory synapses based on organic semiconductors were demonstrated to detect and memorize accumulation of the NO2, simultaneously. However, low-powered artificial synapses showing high sensitivity and selectivity to NO2 has not been well explored. Herein, we report on artificial chemo-neural synaptic transistor based on amine-functionalized semiconducting polymer gel (SPG) gated polymer electrolyte for efficient NO2 recognition. Amine groups were introduced into bulk of the semiconductor film by utilizing unreacted silanol groups of the SPG. Electron donating property of amine groups has strong interaction with electron withdrawing property of NO2 gas, which results in high sensitivity and long-term memory effect. Consequently, our novel design of artificial chemo-neural synapse will provide a guideline for next-generation artificial olfactory sensory systems. |
