title: Engineering electrodeposited ZnO films and their memristive switching performance.
abstract: We report the influence of zinc oxide (ZnO) seed layers on the performance of ZnO-based memristive devices fabricated using an electrodeposition approach. The memristive element is based on a sandwich structure using Ag and Pt electrodes. The ZnO seed layer is employed to tune the morphology of the electrodeposited ZnO films in order to increase the grain boundary density as well as construct highly ordered arrangements of grain boundaries. Additionally, the seed layer also assists in optimizing the concentration of oxygen vacancies in the films. The fabricated devices exhibit memristive switching behaviour with symmetrical and asymmetrical hysteresis loops in the absence and presence of ZnO seed layers, respectively. A modest concentration of oxygen vacancy in electrodeposited ZnO films as well as an increase in the ordered arrangement of grain boundaries leads to higher switching ratios in Ag/ZnO/Pt devices.
authors.affiliation: School of Electrical and Computer Engineering, RMIT University, Melbourne, VIC 3001, Australia. ahdsabirin@yahoo.com
authors.forename: Ahmad Sabirin
authors.initials: AS
authors.lastname: Zoolfakar
authors.forename: Rosmalini
authors.initials: R
authors.lastname: Ab Kadir
authors.forename: Rozina Abdul
authors.initials: RA
authors.lastname: Rani
authors.forename: Sivacarendran
authors.initials: S
authors.lastname: Balendhran
authors.forename: Xinjun
authors.initials: X
authors.lastname: Liu
authors.forename: Eugene
authors.initials: E
authors.lastname: Kats
authors.forename: Suresh K
authors.initials: SK
authors.lastname: Bhargava
authors.forename: Madhu
authors.initials: M
authors.lastname: Bhaskaran
authors.forename: Sharath
authors.initials: S
authors.lastname: Sriram
authors.forename: Serge
authors.initials: S
authors.lastname: Zhuiykov
authors.forename: Anthony P
authors.initials: AP
authors.lastname: O'Mullane
authors.forename: Kourosh
authors.initials: K
authors.lastname: Kalantar-Zadeh