Light-Gated Memristor with Integrated Logic and Memory Functions

Hongwei Tan, Gang Liu, Huali Yang, Xiaohui Yi, Liang Pan, Jie Shang, Shibing Long, Ming Liu, Yihong Wu, Run-Wei Li

Research output: Contribution to journalArticleScientificpeer-review


Memristive devices are able to store and process information, which offers several key advantages over the transistor-based architectures. However, most of the two-terminal memristive devices have fixed functions once made and cannot be reconfigured for other situations. Here, we propose and demonstrate a memristive device "memlogic" (memory logic) as a nonvolatile switch of logic operations integrated with memory function in a single light-gated memristor. Based on nonvolatile light-modulated memristive switching behavior, a single memlogic cell is able to achieve optical and electrical mixed basic Boolean logic of reconfigurable "AND", "OR", and "NOT" operations. Furthermore, the single memlogic cell is also capable of functioning as an optical adder and digital-to-analog converter. All the memlogic outputs are memristive for in situ data storage due to the nonvolatile resistive switching and persistent photoconductivity effects. Thus, as a memdevice, the memlogic has potential for not only simplifying the programmable logic circuits but also building memristive multifunctional optoelectronics.

Original languageEnglish
Pages (from-to)11298-11305
Number of pages8
JournalACS Nano
Issue number11
Publication statusPublished - Nov 2017
MoE publication typeA1 Journal article-refereed


  • memristive switching
  • persistent photoconductance
  • light-gated memristor
  • memlogic
  • memcomputing


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