Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/28334
Title: Investigating the properties of molecular wires on gold and diamond
Authors: NG ZHAOYUE
Keywords: Molecular electronics;charge transport;organic-inorganic hybrid molecular wire;theoretical simulation;diamond-based solar cell;donor-acceptor dyad
Issue Date: 3-Jun-2009
Source: NG ZHAOYUE (2009-06-03). Investigating the properties of molecular wires on gold and diamond. ScholarBank@NUS Repository.
Abstract: The self assembly and electron transport properties of various molecular films on different substrates were investigated in this thesis. In Chapter 3, we proved that the two-step strategy of coupling transition metal complexes to pyridine-terminated oligo(phenylene)ethynylene self-assembled monolayer formed well-ordered molecular assemblies using various surface characterization techniques. Electrical measurements revealed enhanced conductivity, rectification and negative differential resistance in the transition metal-OPP molecular films. In Chapter 4, theoretical simulations of the molecular wires based on the first-principles density functional theory and non-equilibrium Greenb s function revealed electrical properties consistent with the experimental results. In Chapter 5, we demonstrated strong rectification in assemblies of molecular dyads comprising a bithiophene segment as the photo-active electron donor and either a C60 or dicyano moiety as the electron acceptor in sandwich device structures. Diamond-based solar cells incorporating 2T-C60 molecular dyads were then studied using impedance spectroscopy under different lighting conditions and various applied dc potentials.
URI: http://scholarbank.nus.edu.sg/handle/10635/28334
Appears in Collections:Master's Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
Ng Zhaoyue-Amended Thesis.pdf2.38 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

265
checked on Dec 11, 2017

Download(s)

392
checked on Dec 11, 2017

Google ScholarTM

Check


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