Multi-Layered Triboelectric Nanogenerator as an Artificial Synaptic Device for Human-Machine Interface
발표자
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초록
내용
Triboelectric nanogenerator (TENG) has attracted intense attentions from the field of wearable electronics. However, structural design strategies for efficient TENG performance still remain critical challenges. Herein, we propose multi-layered TENG (M-TENG) capable of generating multiple spike impulses based on tribo-positive polydimethylsiloxane (PDMS) and tribo-negative PDMS-based composite films. Our M-TENG can generate distinct multiple spikes corresponding to the number of layers under a single stimulus. Moreover, our M-TENG shows 1.33 times higher output charge and the power density of 7.56 μW/cm2. For the application in artificial synaptic devices, M-TENG is coupled with organic electrochemical transistor, which exhibits continuous increase and gradual decay of post-synaptic current, leading to long-term plasticity. To further investigate human-machine interface using our device, a robotic hand is operated by training process mimicking memory consolidation.