A5024345946- Graphene research and applications
- Molecular Junctions and Nanostructures
- Quantum and electron transport phenomena
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Organic and Molecular Conductors Research
- Organic Electronics and Photovoltaics
- Nanopore and Nanochannel Transport Studies
- Magnetism in coordination complexes
- Carbon Nanotubes in Composites
- Surface and Thin Film Phenomena
- Covalent Organic Framework Applications
- Advanced Battery Materials and Technologies
- Quantum Dots Synthesis And Properties
- Surface Chemistry and Catalysis
- Lanthanide and Transition Metal Complexes
- Organic Light-Emitting Diodes Research
- Force Microscopy Techniques and Applications
- Education and Critical Thinking Development
- Electroconvulsive Therapy Studies
- Supramolecular Chemistry and Complexes
Durham University
2015-2024
Durham Technical Community College
2015-2021
University of Southern Denmark
2015-2019
Odense Municipality
2017-2019
An extension to curly arrow rules for the prediction of quantum interference behaviour in conjugated molecular wires widens scope this simple graphical method containing heteroatoms, cross-conjugation and/or non-alternant structures.
The single molecule conductance of a conjugated molecular wire is electrochemically switched upon oxidising or reducing central bispyrrolotetrathiafulvalene unit.
As the field of molecular-scale electronics matures and prospect devices incorporating molecular wires becomes more feasible, it is necessary to progress from simple anchor groups used in fundamental conductance studies elaborate anchors designed with device stability mind. This study presents a series oligo(phenylene-ethynylene) one tetrapodal phenyl or pyridyl head group. The new are bind strongly gold surfaces without disrupting pathway wires. Conductive probe atomic force microscopy...
Five new neutral heteroleptic iridium(iii) complexes IrL2(pic) (2-6) based on the archetypical blue emitter FIrpic have been synthesised. The cyclometallating ligands L are derived from 2-(2,6-F2-3-pyridyl)-4-mesitylpyridine (7), 2-(3-cyano-2,6-F2-phenyl)-4-mesitylpyridine (8), 2-(2,6-F2-phenyl)-4-[2,7-(HexO)2-9H-carbazol-9-yl]pyridine (9), 2-(2,6-F2-3-pyridyl)-4-[2,7-(HexO)2-9H-carbazol-9-yl]pyridine (10) and 2-(3-cyano-2,6-F2-phenyl)-4-[2,7-(HexO)2-9H-carbazol-9-yl]pyridine (11) for 2, 3,...
Understanding and controlling the orbital alignment of molecules placed between electrodes is essential in design practically-applicable molecular nanoscale electronic devices. The highly determined by molecule-electrode interface. Dependence on anchor group for single junctions has been intensively studied; however, when scaling-up to large parallel arrays (like self-assembled monolayers (SAMs)), two challenges need be addressed: 1. Most desired groups do not form high quality SAMs. 2. It...
Graphene and related two-dimensional (2D) materials possess outstanding electronic mechanical properties, chemical stability, high surface area. However, to realize graphene's potential for a range of applications in science nanotechnology there is need understand control the interaction graphene with tailored high-performance surfactants designed facilitate preparation, manipulation, functionalization new systems. Here we report combined experimental theoretical study structure dynamics on...
Controlling charge transport through molecular wires by utilizing quantum interference (QI) is a growing topic in single-molecular electronics. In this article, scanning tunneling microscopy-break junction techniques and density functional theory calculations are employed to investigate the single-molecule conductance properties of four molecules that have been specifically designed test extended curly arrow rules (ECARs) for predicting QI junctions. Specifically, two new isomeric...
This paper presents the findings from a detailed study investigating UK undergraduate students’ experience of practical science in their post-16 studies during COVID-19 pandemic. It also examines perceived confidence and preparedness relation to areas skills at start courses. The employed an exploratory sequential mixed methods design. Findings student focus groups held end were used support development comprehensive audit quantitative survey for incoming students. Survey data collected...
Easily reversible aqueous dispersion/precipitation of multiwalled carbon nanotubes (MWNTs) has been demonstrated using small-molecule non-ionic pyrene-based surfactants, which exhibit lower critical solution temperature (LCST) phase behaviour. The MWNTs are dispersed by means non-covalent interactions. dispersibility can be switched "off" (i.e., precipitated) upon heating and "on" re-dispersed) cooling merely swirling the sample at room temperature, that is, under very mild conditions. This...
The electron-donor and unique redox properties of the tetrathiafulvalene (TTF, 1 ) moiety have led to diverse applications in many areas chemistry. Monopyrrolotetrathiafulvalenes (MPTTFs, 4 bispyrrolotetrathiafulvalenes (BPTTFs, 5 are useful structural motifs found widespread use fields such as supramolecular chemistry molecular electronics. Protocols enabling synthesis functionalised MPTTFs BPTTFs therefore broad interest. Herein, we present a range MPTTF BPTTF species. Firstly, large-scale...
The switching speed of a bistable [2]rotaxane upon oxidation is found to be increased in the presence added salts.
Abstract As the field of molecular‐scale electronics matures and prospect devices incorporating molecular wires becomes more feasible, it is necessary to progress from simple anchor groups used in fundamental conductance studies elaborate anchors designed with device stability mind. This study presents a series oligo(phenylene‐ethynylene) one tetrapodal phenyl or pyridyl head group. The new are bind strongly gold surfaces without disrupting pathway wires. Conductive probe atomic force...
This study establishes that the structure of linker group between hydrophobic and hydrophilic units in new surfactants <bold>1–13</bold> plays an important role dispersibility multiwalled carbon nanotubes (MWNTs) water.
Alkanethiol molecules with planar aromatic head groups were synthesised and assembled on gold surfaces. The conductance properties of the resulting monolayers measured using conductive atomic force microscopy Pt graphene coated tips.