Functionalized Graphitic Carbon Nitride for Metal-free, Flexible and Rewritable Nonvolatile Memory Device via Direct Laser-Writing

Citations Over TimeTop 10% of 2014 papers

Abstract

Graphitic carbon nitride nanosheet (g-C3N4-NS) has layered structure similar with graphene nanosheet and presents unusual physicochemical properties due to the s-triazine fragments. But their electronic and electrochemical applications are limited by the relatively poor conductivity. The current work provides the first example that atomically thick g-C3N4-NSs are the ideal candidate as the active insulator layer with tunable conductivity for achieving the high performance memory devices with electrical bistability. Unlike in conventional memory diodes, the g-C3N4-NSs based devices combined with graphene layer electrodes are flexible, metal-free and low cost. The functionalized g-C3N4-NSs exhibit desirable dispersibility and dielectricity which support the all-solution fabrication and high performance of the memory diodes. Moreover, the flexible memory diodes are conveniently fabricated through the fast laser writing process on graphene oxide/g-C3N4-NSs/graphene oxide thin film. The obtained devices not only have the nonvolatile electrical bistability with great retention and endurance, but also show the rewritable memory effect with a reliable ON/OFF ratio of up to 10(5), which is the highest among all the metal-free flexible memory diodes reported so far, and even higher than those of metal-containing devices.

Related Papers

• → Synthesis of MoS2 nanosheet–graphene nanosheet hybrid materials for stable lithium storage(2013)304 cited
• → Enhanced fast response to Hg0 by adsorption-induced electronic structure evolution of Ti2C nanosheet(2021)42 cited
• → Design of Deployable Structures by Using Bistable Compliant Mechanisms(2022)38 cited
• → Zn-decorated S,P,B co-doped C2N nanosheet for ibuprofen adsorption: Experimental and density functional theory calculation(2023)19 cited
• → Density functional theory study towards capability of Ga-doped boron nitride nanosheet as a nanocarrier for 3-allyl-2 selenohydantoin anticancer drug delivery(2020)18 cited