Abstract

A synaptic-functional and fully water-soluble physically transient device based on a Cu/amorphous Si/W memristor on a poly(vinyl alcohol) substrate is reported. The constituent materials of the device are all compatible with semiconductor technology, and Cu with a dissolution rate of 0.417 nm h−1 in deionized water can be used as an alternative metal material for transient electronics. In addition, the physically transient behavior of the memristor with synaptic function shows that the disintegration process of the device can be completed after immersion in water for only about 6 min. The proposed transient device is potentially suitable for secure neuromorphic computing applications.

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