Please use this identifier to cite or link to this item:
Title: Electrical Switching and Memory Effects in Electroactive Polymers Containing Electron-Donor and -Acceptor Moieties
Keywords: Polymer Electronic Memory; Charge Transfer; Polyimide; Polyfluorene; Azobenzene Polymer; Graphene
Issue Date: 19-Aug-2010
Citation: LIU YILIANG (2010-08-19). Electrical Switching and Memory Effects in Electroactive Polymers Containing Electron-Donor and -Acceptor Moieties. ScholarBank@NUS Repository.
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.
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
LiuYL.pdf4.79 MBAdobe PDF



Page view(s)

checked on Apr 26, 2019


checked on Apr 26, 2019

Google ScholarTM


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