title: Resistive-switching memory effect of hybrid structures with polyimide and SnO2 nanocrystals.
abstract: Hybrid memory devices with polyimide and SnO2 nanocrystals on a flexible polyethersulphone substrate have shown a memristor behavior from current-voltage (I-V) measurements. The resistive-switching effects with a current bistability appeared during cycling voltage sweeping within the range of +/- 4 V. This I-V switching effect might have originated from a resistance fluctuation due to the charge trapping into the SnO2 nanocrystals as well as the oxygen vacancies of the ZnO layer and aluminum oxides that were formed between the polyimide and the interface of the Al gate electrode. In the bipolar resistance-switching behavior, the ratio of the high- and low-resistance state currents was about 3.7 x 10(4) at 1 V.
authors.affiliation: Department of Physics and Research Institute for Natural Science, Hanyang University, Seoul 133-791, Republic of Korea.
authors.forename: Dong Uk
authors.initials: DU
authors.lastname: Lee
authors.forename: Seon Pil
authors.initials: SP
authors.lastname: Kim
authors.forename: Eun Kyu
authors.initials: EK
authors.lastname: Kim
authors.forename: Won-Ju
authors.initials: WJ
authors.lastname: Cho
authors.forename: Young-Ho
authors.initials: YH
authors.lastname: Kim
authors.forename: Hyunsik
authors.initials: H
authors.lastname: Im