Journal
NANO-MICRO LETTERS
Volume 7, Issue 2, Pages 121-126Publisher
SHANGHAI JIAO TONG UNIV PRESS
DOI: 10.1007/s40820-014-0024-2
Keywords
Ions migration; Nano-channels; Frequency selectivity; Semiconducting polymer; Organic electrolyte; Dynamic doping
Funding
- National Natural Science foundation of China [51371103, 51231004]
- National Basic Research Program of China [2010CB832905]
- National Hi-tech (R&D) Project of China [2012AA03A706, 2013AA030801]
- Research Project of Chinese Ministry of Education [113007A]
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Enhancing ion conductance and controlling transport pathway in organic electrolyte could be used to modulate ionic kinetics to handle signals. In a Pt/Poly(3-hexylthiophene-2,5-diyl)/Polyethylene+LiCF3SO3/Pt hetero-junction, the electrolyte layer handled at high temperature showed nano-fiber microstructures accompanied with greatly improved salt solubility. Ions with high mobility were confined in the nano-fibrous channels leading to the semiconducting polymer layer, which is favorable for modulating dynamic doping at the semiconducting polymer/electrolyte interface by pulse frequency. Such a device realized synaptic-like frequency selectivity, i.e., depression at low frequency stimulation but potentiation at high-frequency stimulation.
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