TY - JOUR
AU1 - Wang, Xiao
AU2 - Liu, Zhen
AU3 - Wen, Chao
AU4 - Liu, Yang
AU5 - Wang, Hong
AU6 - Chen, T.
AU7 - Zhang, Hai
AB - With self-prepared nickel acetate based solution, NiO thin films with different thicknesses have been fabricated by spin coating followed by thermal annealing. By forming a two-terminal Ag/NiO/ITO structure on glass, write-once-read-many-times (WORM) memory devices are realized. The WORM memory behavior is based on a permanent switching from an initial high-resistance state (HRS) to an irreversible low-resistance state (LRS) under the application of a writing voltage, due to the formation of a solid bridge across Ag and ITO electrodes by conductive filaments (CFs). The memory performance is investigated as a function of the NiO film thickness, which is determined by the number of spin-coated NiO layers. For devices with 4 and 6 NiO layers, data retention up to 104 s and endurance of 103 reading operations in the measurement range have been obtained with memory window maintained above four orders for both HRS and LRS. Before and after writing, the devices show the hopping and ohmic conduction behaviors, respectively, confirming that the CF formation could be the mechanism responsible for writing in the WORM memory devices.
TI - Thickness effect of nickel oxide thin films on associated solution-processed write-once-read-many-times memory devices
JF - Applied Physics A: Materials Science  Processing
DO - 10.1007/s00339-018-1868-y
DA - 2018-05-28
UR - https://www.deepdyve.com/lp/springer-journals/thickness-effect-of-nickel-oxide-thin-films-on-associated-solution-VptPL20qkI
SP - 1
EP - 7
VL - 124
IS - 6
DP - DeepDyve
ER -