TAGS: Medical
Researchers from Tohoku University and the University of Cambridge have discovered that adding an ion conducting polymer enhances neuromorphic device response time. Mixing polymers together results in the creation of new materials with their own distinct physical properties.
Blending Polymers for Enhanced Diffusivity
Most studies on neuromorphic devices based on polymer focus exclusively on the application of PEDOT: PSS, a mixed conductor that transports both electrons and ions. PSS-Na, on the other hand, transports ions only.
By blending these two polymers, the researchers could enhance the ion diffusivity in the active layer of the device. Their measurements confirmed an increase in device response time, achieving a 5-time shorting at maximum. The results also proved how closely related response time is to the diffusivity of ions in the active layer.
The study paves the way for a deeper understanding behind the science of conducting polymers. Moving forward, it may be possible to create artificial neural networks composed of multiple neuromorphic devices based on this research.
Source: Tohoku University