Room-temperature fabricated, fully transparent resistive memory based on ITO/CeO2/ITO structure for RRAM applications

Muhammad Ismail, Anwar Manzoor Rana, Ijaz Talib, Tsung Ling Tsai, Umesh Chand, Ejaz Ahmed, Muhammad Younus Nadeem, Abdul Aziz, Nazar Abbas Shah, Muhammad Hussain

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

Fully transparent resistive random access memory (TRRAM) device based on CeO2 as active layer using indium-tin-oxide (ITO) electrodes was fabricated on glass substrate. The ITO/CeO2/ITO memory device shows 81% transmission of visible light, optical band gap energy of 4.05 eV, and exhibits reliable bipolar resistive switching behavior. X-ray diffraction of CeO2 thin films demonstrated a weak polycrystalline phase. The low field conduction is dominated by Ohmic type while Poole-Frenkel effect is responsible for conduction in the high field region. The device reliability investigations, such as data retention (over 104 s) under applied stress and endurance tests conducted at room temperature and 85 °C show potential of our TRRAM devices for future non-volatile memory applications.

Original languageEnglish
Pages (from-to)28-34
Number of pages7
JournalSolid State Communications
Volume202
DOIs
StatePublished - Jan 2015

Keywords

  • Metal
  • Poole-Frenkel conduction
  • Resistive switching
  • Sandwich
  • Thin films

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