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https://scholarbank.nus.edu.sg/handle/10635/22021
DC Field | Value | |
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dc.title | Electrical Switching and Memory Effects in Electroactive Polymers Containing Electron-Donor and -Acceptor Moieties | |
dc.contributor.author | LIU YILIANG | |
dc.date.accessioned | 2011-04-21T18:00:04Z | |
dc.date.available | 2011-04-21T18:00:04Z | |
dc.date.issued | 2010-08-19 | |
dc.identifier.citation | LIU YILIANG (2010-08-19). Electrical Switching and Memory Effects in Electroactive Polymers Containing Electron-Donor and -Acceptor Moieties. ScholarBank@NUS Repository. | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/22021 | |
dc.description.abstract | Electroactive polymers have been of interest as alternatives to traditional inorganic semiconductor materials for application in electronic memory devices. In comparison to silicon-based memory devices, polymer electronic memories exhibit low-cost potential, simplicity in structure, good scalability, 3D stacking capability, and ease of processing. A series of electroactive polymers, including functional polyimides, polyfluorene copolymers, azobenzene-containing polymers and graphene oxide (GO)-polymer complexes, which contains electron-donor and -acceptor moieties within a single macromolecule, have been designed in this work. Electrical switching and memory effects of these polymers have been studied in terms of their current density-voltage (J-V) characteristics under electrical sweeps. The memory effects, including magnitudes of the ON and OFF state currents, volatility and reversibility of the ON state, and switching threshold voltages, are dependant to a large extent on the molecular structures. The effects of different functional groups (electron-donor or -acceptor moieties) on the resultant memory effects have been studied with the aid of molecular simulation and experimental characterization. The molecular structure-dependent switching and memory effects illustrate that it is possible to tune the electrical switching and memory behaviors of polymers via molecular design and synthesis. | |
dc.language.iso | en | |
dc.subject | Polymer Electronic Memory; Charge Transfer; Polyimide; Polyfluorene; Azobenzene Polymer; Graphene | |
dc.type | Thesis | |
dc.contributor.department | CHEMICAL & BIOMOLECULAR ENGINEERING | |
dc.contributor.supervisor | KANG EN-TANG | |
dc.contributor.supervisor | TOK ENG SOON | |
dc.description.degree | Ph.D | |
dc.description.degreeconferred | DOCTOR OF PHILOSOPHY | |
dc.identifier.isiut | NOT_IN_WOS | |
Appears in Collections: | Ph.D Theses (Open) |
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LiuYL.pdf | 4.79 MB | Adobe PDF | OPEN | None | View/Download |
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