摘要
The development of electronic devices that possess the functionality of biological synapses is a crucial step towards neuromorphic computing.In this work,we present a WOx-based memristive device that can emulate voltage-dependent synaptic plasticity.By adjusting the amplitude of the applied voltage,we were able to reproduce short-term plasticity(STP)and the transition from STP to long-term potentiation.The stimulation with high intensity induced long-term enhancement of conductance without any decay process,thus representing a permanent memory behavior.Moreover,the image Boolean operations(including intersection,subtraction,and union)were also demonstrated in the memristive synapse array based on the above voltage-dependent plasticity.The experimental achievements of this study provide a new insight into the successful mimicry of essential characteristics of synaptic behaviors.
基金
the fund from Ministry of Science and Technology of China(Nos.2018YFE0118300 and 2019YFB2205100)
the NSFC Program(Nos.11974072,51701037,51732003,51872043,51902048,61774031,61574031 and U19A2091)
the“111”Project(No.B13013)
the fund from Ministry of Education of China(No.6141A02033414)
The fund from China Postdoctoral Science Foundation(No.2019M661185)
The Fundamental Research Funds for the Central Universities(No.2412019QD015)
the Fund from Jilin Province(JJKH20201163KJ).
