Please use this identifier to cite or link to this item:
Title: Synthesis and memory properties of a conjugated copolymer of fluorene and benzoate with chelated europium complex
Authors: Song, Y.
Tan, Y.P.
Teo, E.Y.H. 
Zhu, C. 
Chan, D.S.H. 
Ling, Q.D. 
Neoh, K.G. 
Kang, E.T. 
Issue Date: 2006
Citation: Song, Y., Tan, Y.P., Teo, E.Y.H., Zhu, C., Chan, D.S.H., Ling, Q.D., Neoh, K.G., Kang, E.T. (2006). Synthesis and memory properties of a conjugated copolymer of fluorene and benzoate with chelated europium complex. Journal of Applied Physics 100 (8) : -. ScholarBank@NUS Repository.
Abstract: A conjugated copolymer of diethylhexylfluorene and europium complex-chelated benzoate (PF8Eu) was synthesized. The device based on an Al/PF8Eu/indium-tin-oxide sandwich structure exhibited nonvolatile, write-once read-many-times (WORM) memory behavior. The fluorene moiety served as the backbone and electron donor, while the europium complex served as the electron acceptor. The as-fabricated device was in its low conductivity state. After applying a voltage of ∼3 V, the device underwent a transition to the high conductivity state, which could not be erased by a reverse bias. In the initial low conductivity state, the device showed a charge injection controlled current. At the high conductivity state, the current-voltage characteristics were dominated by a space-charge-limited current. The device had a switching time of ∼1 μs and an on/off current ratio as high as 106. No degradation in device performance was observed after 107 read cycles at a read voltage of 1 V under ambient conditions. The device also exhibited good stability under a constant 1 V stress. Thus, the device based on PF8Eu is potentially useful as a WORM memory. © 2006 American Institute of Physics.
Source Title: Journal of Applied Physics
ISSN: 00218979
DOI: 10.1063/1.2362982
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Nov 30, 2022


checked on Nov 21, 2022

Page view(s)

checked on Nov 24, 2022

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.