Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/83515
Title: Bistable electrical switching and rewritable memory effect in a thin film acrylate copolymer containing carbazole-oxadiazole donor-acceptor pendant groups
Authors: Teo, E.Y.H. 
Ling, Q.D.
Lim, S.L.
Neoh, K.G.
Kang, E.T.
Chan, D.S.H. 
Zhu, C.X. 
Issue Date: 2008
Source: Teo, E.Y.H.,Ling, Q.D.,Lim, S.L.,Neoh, K.G.,Kang, E.T.,Chan, D.S.H.,Zhu, C.X. (2008). Bistable electrical switching and rewritable memory effect in a thin film acrylate copolymer containing carbazole-oxadiazole donor-acceptor pendant groups. Materials Research Society Symposium Proceedings 1114 : 1-10. ScholarBank@NUS Repository.
Abstract: The molecular conformation-dependent write-once read-many-times (WORM) memory based on an acrylate polymer containing pendant carbazole (donor) groups is transformed into a flash (rewritable) memory when acrylate units containing pendant oxadiazole (acceptor) groups are incorporated to form a copolymer. The as-fabricated device based on the acrylate copolymer containing carbazole-oxadiazole donor-acceptor pendant groups is in its low conductivity state and can be written to a high conductivity state at a threshold voltage of -1.8 V. The high conductivity state can be switched (erased) to the low conductivity state with a positive bias of 3.6 V. The device exhibits a high ON/OFF current ratio of 103 at a read voltage of - 1 V. This rewritable polymer memory can be programmed and erased repeatedly with good accuracy. The copolymer is potentially useful for application in flash memory devices. © 2009 Materials Research Society.
Source Title: Materials Research Society Symposium Proceedings
URI: http://scholarbank.nus.edu.sg/handle/10635/83515
ISBN: 9781615677603
ISSN: 02729172
Appears in Collections:Staff Publications

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