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Browsing by Author "Huang, Jen-wei"

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    Space electric field concentrated effect for Zr:SiO2 RRAM devices using porous SiO2 buffer layer
    (2013-12-11)
    Chang, Kuan-
    ;
    Huang, Jen-wei
    ;
    Chang, Ting-Chang
    ;
    Tsai, Tsung-Ming
    ;
    Chen, Kai-Huang
    To improve the operation current lowing of the Zr:SiO2 RRAM devices, a space electric field concentrated effect established by the porous SiO2 buffer layer was investigated and found in this study. The resistive switching properties of the low-resistance state (LRS) and high-resistance state (HRS) in resistive random access memory (RRAM) devices for the single-layer Zr:SiO2 and bilayer Zr:SiO2/porous SiO2 thin films were analyzed and discussed. In addition, the original space charge limited current (SCLC) conduction mechanism in LRS and HRS of the RRAM devices using bilayer Zr:SiO2/porous SiO2 thin films was found. Finally, a space electric field concentrated effect in the bilayer Zr:SiO2/porous SiO2 RRAM devices was also explained and verified by the COMSOL Multiphysics simulation model.