Photo-induced resistive switching in CdS-sensitized TiO2 nanorod array memristive device

The emergence of an electric field controlled memristive effect paves the way for efficient resistive memory and future computing applications. The photo-induced memristive effects provide an additional degree of freedom by utilizing the photonic stimulus. Considering this strategy, the present work...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2020-07, Vol.31 (13), p.10919-10929
Main Authors: Bhat, Tejasvinee S., Revadekar, Chetan C., Patil, Satyajeet S., Dongale, Tukaram D., Kim, Deok-kee, Patil, Pramod S.
Format: Article
Language:English
Subjects:
Arrays
Characterization and Evaluation of Materials
Chemistry and Materials Science
Crystal structure
Electric fields
Laboratories
Materials Science
Memory devices
Morphology
Nanorods
Optical and Electronic Materials
Switching
Thin films
Titanium dioxide
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Summary:The emergence of an electric field controlled memristive effect paves the way for efficient resistive memory and future computing applications. The photo-induced memristive effects provide an additional degree of freedom by utilizing the photonic stimulus. Considering this strategy, the present work reports synthesis, characterization and exploration of the resistive switching (RS) effect of the CdS-sensitized TiO 2 nanorod array-based memristive device. The Al/CdS-sensitized TiO 2 /FTO thin-film device demonstrates the Ultraviolet–Visible (UV–Vis) induced RS behavior and non-volatile memory properties. The memory device shows 10 3 cyclic switchings and can retain data up to 10 3  s. The device conduction analysis reveals that the Ohmic, Child's square law and Schottky models were well fitted to the experimental I–V data and responsible for current conduction in the Al/CdS-sensitized TiO 2 /FTO memory device. The results of the present work are beneficial for several applications that include light-responsive memory, synaptic and sensor devices.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-020-03643-w