• About
  • Policies
  • What is open access
  • Library
  • Contact
Advanced search
      View Item 
      •   BUIR Home
      • Scholarly Publications
      • Institute of Materials Science and Nanotechnology (UNAM)
      • View Item
      •   BUIR Home
      • Scholarly Publications
      • Institute of Materials Science and Nanotechnology (UNAM)
      • View Item
      JavaScript is disabled for your browser. Some features of this site may not work without it.

      Electric-field-induced reversible phase transitions in a spontaneously ion-Intercalated 2D metal oxide

      Thumbnail
      View / Download
      7.6 Mb
      Author(s)
      Rasouli, Hamid Reza
      Kim, J.
      Mehmood, Naveed
      Sheraz, Ali
      Jo, M. K.
      Song, Seungwoo
      Kang, K.
      Kasırga, Talip Serkan
      Date
      2021-05-12
      Source Title
      Nano Letters
      Print ISSN
      1530-6984
      Electronic ISSN
      1530-6992
      Publisher
      American Chemical Society
      Volume
      21
      Issue
      9
      Pages
      3997 - 4005
      Language
      English
      Type
      Article
      Item Usage Stats
      24
      views
      55
      downloads
      Abstract
      Electric field driven reversible phase transitions in two-dimensional (2D) materials are appealing for their potential in switching applications. Here, we introduce potassium intercalated MnO2 as an exemplary case. We demonstrate the synthesis of large-area single-crystal layered MnO2 via chemical vapor deposition as thin as 5 nm. These crystals are spontaneously intercalated by potassium ions during the synthesis. We showed that the charge transport in 2D K-MnO2 is dominated by motion of hydrated potassium ions in the interlayer space. Under a few volts bias, separation of potassium and the structural water leads to formation of different phases at the opposite terminals, and at larger biases K-MnO2 crystals exhibit reversible layered-to-spinel phase transition. These phase transitions are accompanied by electrical and optical changes in the material. We used the electric field driven ionic motion in K-MnO2 based devices to demonstrate the memristive capabilities of two terminal devices.
      Keywords
      2D materials
      Phase transitions
      Ion transport
      MnO2
      Real time optical chemical vapor deposition
      Permalink
      http://hdl.handle.net/11693/76795
      Published Version (Please cite this version)
      https://doi.org/10.1021/acs.nanolett.1c00735
      Collections
      • Department of Physics 2484
      • Institute of Materials Science and Nanotechnology (UNAM) 2098
      Show full item record

      Browse

      All of BUIRCommunities & CollectionsTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartmentsCoursesThis CollectionTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartmentsCourses

      My Account

      Login

      Statistics

      View Usage StatisticsView Google Analytics Statistics

      Bilkent University

      If you have trouble accessing this page and need to request an alternate format, contact the site administrator. Phone: (312) 290 2976
      © Bilkent University - Library IT

      Contact Us | Send Feedback | Off-Campus Access | Admin | Privacy