High Uniformity of Resistive Switching Characteristics in a Cr/ZnO/Pt Device

被引:54
作者
Chang, Wen-Yuan [1 ,2 ]
Huang, Hsin-Wei [3 ]
Wang, Wei-Ting [3 ]
Hou, Cheng-Hao [3 ]
Chueh, Yu-Lun [3 ]
He, Jr-Hau [1 ,2 ]
机构
[1] Natl Taiwan Univ, Inst Photon & Optoelect, Taipei 106, Taiwan
[2] Natl Taiwan Univ, Dept Elect Engn, Taipei 106, Taiwan
[3] Natl TsingHua Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan
关键词
POLYCRYSTALLINE NIO FILMS; MEMORY APPLICATIONS; OXIDE-FILMS;
D O I
10.1149/2.092203jes
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
070208 [无线电物理];
摘要
This study investigates the resistive switching behavior of Pt, Al, and Cr electrodes for ZnO-based resistance random access memory. Results show that the existence of oxygen ions in the electrode plays an important role in the resistive switching behavior during filament reduction and oxidization. The Cr/ZnO/Pt structure exhibited a significant improvement in resistive switching parameters such as operation voltages and resistance states. This is most likely due to the partial formation of oxidation layers, namely CrOx at the Cr/ZnO interface. These layers act as oxygen reservoir or oxygen supplier, and improve the efficiency of oxygen ion exchange near the electrode/oxide interface. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.092203jes] All rights reserved.
引用
收藏
页码:G29 / G32
页数:4
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