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Characteristics of ZnO Thin Film for the Resistive Random Access Memory

Published online by Cambridge University Press:  01 February 2011

Jung Won Seo ,
Seung Jae Baik ,
Sang Jung Kang  and
Koseng Su Lim
Jung Won Seo
Affiliation:
zenithjwon@kaist.ac.kr
Seung Jae Baik
Affiliation:
solar100@kaist.ac.kr, KAIST, EE, Daejeon, Korea, Republic of
Sang Jung Kang
Affiliation:
goska777@kaist.ac.kr, KAIST, EE, Daejeon, Korea, Republic of
Koseng Su Lim
Affiliation:
kslim@ee.kaist.ac.kr, KAIST, EE, Daejeon, Korea, Republic of
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Abstract

We report resistive switching characteristics in Pt/ZnO/Pt devices where ZnO thin film is fabricated at various oxygen conditions. With the increase of oxygen contents in ZnO thin film, the forming voltage is gradually increased while reset and set voltages are almost unchanged. We also investigated the effect of top electrodes on resistive switching of top electrode/ZnO/Pt device. For a Pt/ZnO/Pt device, it exhibits the excellent resistive switching behavior due to high electrical field of the well-defined Schottky barrier. For Al/ZnO/Pt device, little resistive switching phenomena were occurred due to leakage current of the weak Schottky (or Ohmic) contact.

Keywords

devicesmemoryelectrical properties
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1250: Symposium G – Materials and Physics for Nonvolatile Memories II , 2010 , 1250-G12-16
Copyright
Copyright © Materials Research Society 2010

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