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|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. |
|Citation:||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|
|Appears in Collections:||Staff Publications|
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