Zhou, Y., Han, S.-T., Xu, Z.-X. and Roy, V.A.L. (2013) The strain and thermal induced tunable charging phenomenon in low power flexible memory arrays with a gold nanoparticle monolayer. Nanoscale, 5(5), pp. 1972-1979. (doi: 10.1039/c2nr32579a)
Full text not currently available from Enlighten.
Abstract
The strain and temperature dependent memory effect of organic memory transistors on plastic substrates has been investigated under ambient conditions. The gold (Au) nanoparticle monolayer was prepared and embedded in an atomic layer deposited aluminum oxide (Al2O3) as the charge trapping layer. The devices exhibited low operation voltage, reliable memory characteristics and long data retention time. Experimental analysis of the programming and erasing behavior at various bending states showed the relationship between strain and charging capacity. Thermal-induced effects on these memory devices have also been analyzed. The mobility shows ∼200% rise and the memory window increases from 1.48 V to 1.8 V when the temperature rises from 20 °C to 80 °C due to thermally activated transport. The retention capability of the devices decreases with the increased working temperature. Our findings provide a better understanding of flexible organic memory transistors under various operating temperatures and validate their applications in various areas such as temperature sensors, temperature memory or advanced electronic circuits. Furthermore, the low temperature processing procedures of the key elements (Au nanoparticle monolayer and Al2O3 dielectric layer) could be potentially integrated with large area flexible electronics.
Item Type: | Articles |
---|---|
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Vellaisamy, Professor Roy |
Authors: | Zhou, Y., Han, S.-T., Xu, Z.-X., and Roy, V.A.L. |
College/School: | College of Science and Engineering > School of Engineering |
Journal Name: | Nanoscale |
Publisher: | Royal Society of Chemistry |
ISSN: | 2040-3364 |
ISSN (Online): | 2040-3372 |
Published Online: | 03 January 2013 |
University Staff: Request a correction | Enlighten Editors: Update this record