A5024478367- Molecular Junctions and Nanostructures
- Graphene research and applications
- CO2 Reduction Techniques and Catalysts
- Carbon Nanotubes in Composites
- Advancements in Battery Materials
- Chemical Synthesis and Characterization
- Radioactive element chemistry and processing
- Electrochemical Analysis and Applications
- Conducting polymers and applications
University of North Carolina at Chapel Hill
2022-2024
Covalent bonding interactions determine the energy–momentum ( E – k ) dispersion (band structure) of solid-state materials. Here, we show that noncovalent can modulate near Fermi level a low-dimensional nanoscale conductor. We demonstrate low energy band gaps may be opened in metallic carbon nanotubes through polymer wrapping nanotube surface at fixed helical periodicity. Electronic spectral, chiro-optic, potentiometric, electronic device, and work function data corroborate magnitude gap...
A sonochemical-based hydrosilylation method was employed to covalently attach a rhenium tricarbonyl phenanthroline complex silicon(111). fac-Re(5-(p-Styrene)-phen)(CO)3Cl (5-(p-styrene)-phen = 5-(4-vinylphenyl)-1,10-phenanthroline) reacted with hydrogen-terminated silicon(111) in an ultrasonic bath generate hybrid photoelectrode. Subsequent reaction 1-hexene enabled functionalization of remaining atop Si sites. Attenuated total reflectance-Fourier transform infrared spectroscopy confirms...
Aryl diazonium electrografting is a powerful method for imparting molecular functionality onto various substrates by forming stable carbon-surface covalent bond. While the high reactivity of aryl radical intermediate makes this fast and reliable, it can also lead to formation an insulating disordered multilayer film. These thick films affect electrochemical performance, especially semiconductor used in photoelectrochemical applications. We studied effects film thickness composition...