Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/34164
Title: Advanced Heterostructures for Polymer Organic Semiconductor Devices
Authors: PNG RUI QI
Keywords: Heterostructure, crosslinker, polymer, semiconductor, diode, dope
Issue Date: 19-Aug-2011
Source: PNG RUI QI (2011-08-19). Advanced Heterostructures for Polymer Organic Semiconductor Devices. ScholarBank@NUS Repository.
Abstract: Heterostructures are central to efficient manipulation of charge carriers, excitons and photons for high performance semiconductor devices. The development of heterostructures has been hampered previously by the dissolution of the underlayers unless orthogonal solvents are used. Therefore work in this thesis has focused on heterostructures fabricated with a non-specific azide photocrosslinking methodology to circumvent the dissolution problem. As a consequence, not only the traditional planar type heterostructures are possible, but also the novel nanotextured types due to the soft nature of these organic semiconductors. Performance gains across both polymer organic light-emitting diodes and organic photovoltaic solar cells have been measured. Furthermore the use of chemical doping to create ultrahigh work function heterostructures and ohmic contacts has also been demonstrated. Thus new opportunities for the design and control of plastic electronic devices have been opened.
URI: http://scholarbank.nus.edu.sg/handle/10635/34164
Appears in Collections:Ph.D Theses (Open)

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