Photomemristive heterostructures based on two-dimensional crystals

¹Department of Physics, Nano-Information Technology Academy, Dongguk University, Seoul, 04620, Republic of Korea

²Institute for Microelectronics Technology and High Purity Materials, Russian Academy of Sciences, Chernogolovka, Moscow Distr., 142432 Russia

³Department of Chemistry, Moscow State University, Moscow, 119991 Russia

Adv. Mater. Lett., 2019, 10 (7), pp 470-475

DOI: 10.5185/amlett.2019.2212

Publication Date (Web): Jan 14, 2019

Copyright © IAAM-VBRI Press

E-mail: g_panin@dgu.edu; panin@iptm.ru 

Abstract

The unique electronic and optical properties of recently discovered two-dimensional (2D) crystals, such as graphene, graphene oxide, molybdenum disulphide etc., demonstrate their enormous potential in creating ultrahigh density electronics for image recognition systems and information storage. Synapse-like memristive heterostructures are considered as a new type of electronic switches with extremely low power consumption and footprint that can be used to overcome the limit of current CMOS technology. Memristors with a floating photogate, called photomemristors, based on graphene and MoS₂, are considered. Photocatalytic oxidation of graphene is considered as an effective method for creating memristive heterostructures with photoresistive switching for non-volatile electronic memory of ultrahigh density for the formation of self-assembled nanoscale memristive elements interfacing with neural networks. 2D photomemristors with a floating photogate exhibit multiple states that can be monitored over a wide range of electromagnetic radiation and can be used in neurohybrid systems for image processing and pattern recognition, as well as for selective manipulation of neurons by light.  © VBRI Press.

Keywords

2D crystals, memristor, photomemristive switching, floating photogate, neurohybrid systems.