Nonvolatile memory devices with Cu2S and Cu-Pc bilayered films \

被引:49
作者
Chen, Liang [1 ]
Xia, Yidong
Liang, Xuefei
Yin, Kuibo
Yin, Jiang
Liu, Zhiguo
Chen, Yong
机构
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
[2] Univ Calif Los Angeles, Calif Nanosyst Inst, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA
基金
中国国家自然科学基金;
关键词
D O I
10.1063/1.2771064
中图分类号
O59 [应用物理学];
学科分类号
摘要
An organic bistable device with a structure Cu/Cu2S/copperphthalocyanine (Cu-Pc)/Pt was fabricated. Compared to the single layer organic device composed of Cu/Cu-Pc/Pt, the bilayer devices were observed to show distinct bistability with the resistance ratio of the off/on states up to 10(7) and low switch voltage (0.75-0.85 V). At least 10(5) switching cycles were achieved in the "write-read-erase-read" cycle voltage. The filament mechanism for the device is supported by the "metallic" behavior in their temperature dependence of the resistance in the on state. Such a memory device provides a promising structure for the nonvolatile memory. (C) 2007 American Institute of Physics.
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页数:3
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