• 文献标题:   All-printed and highly stable organic resistive switching device based on graphene quantum dots and polyvinylpyrrolidone composite
  • 文献类型:   Article
  • 作  者:   ALI S, BAE J, LEE CH, CHOI KH, DOH YH
  • 作者关键词:   gqd, pvp, ehd, silver electrode, metal insulator metal, resistive switching
  • 出版物名称:   ORGANIC ELECTRONICS
  • ISSN:   1566-1199 EI 1878-5530
  • 通讯作者地址:   Jeju Natl Univ
  • 被引频次:   17
  • DOI:   10.1016/j.orgel.2015.06.040
  • 出版年:   2015

▎ 摘  要

We propose all printed and highly stable organic resistive switching device (ORSD) based on graphene quantum dots (G-QDs) and polyvinylpyrrolidone (PVP) composite for non-volatile memory applications. It is fabricated by sandwiching G-QDs/PVP composite between top and bottom silver (Ag) electrodes on a flexible substrate polyethylene terephthalate (PET) at ambient conditions through a cost effective and eco-friendly electro-hydrodynamic (EHD) technique. Thickness of the active layer is measured around 97 nm. The proposed ORSD is fabricated in a 3 x 3 crossbar array. It operates switching between high resistance state (HRS) and low resistance state (LRS) with OFF/ON ratio similar to 14 for more than 500 endurance cycles, and retention time for more than 30 days. The switching voltage for set/reset of the devices is +/- 1.8 V and the bendability down to 8 mm diameter for 1000 cycles are tested. The elemental composition and surface morphology are characterized by XPS, FE-SEM, and microscope. (C) 2015 Elsevier B.V. All rights reserved.