Please use this identifier to cite or link to this item: https://doi.org/10.1002/pola.25043
Title: Push-Pull archetype of reduced graphene oxide functionalized with polyfluorene for nonvolatile rewritable memory
Authors: Zhang, B.
Chen, Y.
Liu, G. 
Xu, L.-Q.
Chen, J.
Zhu, C.-X. 
Neoh, K.-G. 
Kang, E.-T. 
Keywords: conjugated polymers
functionalization of polymers
high performance polymers
polyfluorene
reduced graphene oxide
rewritable memory effect
synthesis
Issue Date: 15-Jan-2012
Citation: Zhang, B., Chen, Y., Liu, G., Xu, L.-Q., Chen, J., Zhu, C.-X., Neoh, K.-G., Kang, E.-T. (2012-01-15). Push-Pull archetype of reduced graphene oxide functionalized with polyfluorene for nonvolatile rewritable memory. Journal of Polymer Science, Part A: Polymer Chemistry 50 (2) : 378-387. ScholarBank@NUS Repository. https://doi.org/10.1002/pola.25043
Abstract: A solution-processable PFTPA-convalently grafted reduced graphene oxide (RGO-PFTPA) was synthesized by the 1,3-dipolar cycloaddition of azomethine ylide. Bistable electrical switching and nonvolatile rewritable memory effects were demonstrated in a sandwich structure of indium tin oxide/RGO-PFTPA/Al. The switch-on voltage of the as-fabricated device was around -1.4 V, and the ON/OFF-state current ratio was more than 10 3. The ON-OFF transition process is reversible because the application of a high enough positive voltage can induce the reverse transfer of electrons, reducing the conductivity back to its initial OFF state. Both the OFF and ON states are accessible and very stable under a constant voltage stress of -1 V for up to 3 h, or under a pulse voltage stress of -1 V for up to 10 8 continuous read cycles (pulse period = 2 μs, pulse width = 1 μs). © 2011 Wiley Periodicals, Inc.
Source Title: Journal of Polymer Science, Part A: Polymer Chemistry
URI: http://scholarbank.nus.edu.sg/handle/10635/82949
ISSN: 0887624X
DOI: 10.1002/pola.25043
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