A5072860095- Graphene research and applications
- Molecular Junctions and Nanostructures
- Nanomaterials and Printing Technologies
- Advanced Sensor and Energy Harvesting Materials
- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Nanowire Synthesis and Applications
- CO2 Reduction Techniques and Catalysts
- Quantum and electron transport phenomena
- Advanced Memory and Neural Computing
- Carbon and Quantum Dots Applications
- Photochemistry and Electron Transfer Studies
- Photonic and Optical Devices
- Surfactants and Colloidal Systems
- Spectroscopy Techniques in Biomedical and Chemical Research
- Microbial Fuel Cells and Bioremediation
- Nonlinear Optical Materials Studies
- Ionic liquids properties and applications
- Analytical Chemistry and Sensors
- Graphene and Nanomaterials Applications
University of Copenhagen
2016-2019
Technical University of Denmark
2013-2015
The structure of graphene oxide (GO) is a matter discussion. While established GO models are based on functional groups attached to the carbon framework, another frequently used model claims that consists two components, slightly oxidized core and highly molecular species, oxidative debris (OD), adsorbed it. Those adsorbents claimed be origin for optical properties GO. Here, we examine this by preparing with low degree functionalization, combining it OD studying both components their...
The use of graphene materials as conductive inks for flexible and transparent electronics is promising, but challenged by the need stabilizers, specialized organic solvents, and/or high temperature annealing, severely limiting performance or compatibility with substrates printing techniques. Here, development a scalable water‐based oxide ink reported that can be screen‐printed on plastic subsequently reduced using 1:1 mixture trifluoroacetic acid hydroiodic acid, thereby creating an electric...
Graphene‐derived materials are attractive components in conductive inks for printed and flexible electronics. Here, the authors report a facile scalable synthesis of mildly oxidized graphite its formulation into screen‐printable inks. The screen‐printed electrodes exhibit sheet‐resistance below 1 Ω/sq after rolling‐compression, with compressed film thickness ≈3 μm line‐width resolution 100 μm. method, described herein, can be used without need substrate‐limiting post‐printing treatments,...
We present a method for continuous, photon energy dependent micro Raman spectroscopy. A narrow excitation line is selected from continuum laser by an acousto-optic tunable filter (AOTF) plus additional monochromator (MC). Automation of laser, AOTF, MC and long pass filters enables us to continuously scan the wavelength over full visible range while synchronously acquiring spectra 1.85 eV 2.83 eV. demonstrate applicability our on well-studied sample, reduced graphene oxide (rGO), where we...
Vapor deposition of metals has long been the primary method for making contact with organic molecules in electronic devices a fast and scalable manner. However, direct metal evaporation proven to be cause device failure solid-state molecular due degradation self-assembled monolayers. The introduction protective interlayer between monolayer evaporated top electrode greatly improves yield working but at cost an increased internal resistance that depends on nature its interface both electrode....
Electron transport phenomena in molecular monolayers are complex and potentially different from those of single molecules because of, for example, molecule–molecule interactions. Unfortunately, access to detailed mechanistic investigations monolayer junctions at ultralow temperatures is typically hampered by the narrow range operating most large-area device platforms. Here, we present a highly optimized chemically derived graphene material with near temperature-independent conductance...
Abstract not Available.
Three series of ionic self-assembled materials based on anionic azo-dyes and cationic benzalkonium surfactants were synthesized thin films prepared by spin-casting. These appear isotropic when investigated with polarized optical microscopy, although they are highly anisotropic. Here, three homologous studied to rationalize this observation. Investigating ordered molecular relies a large extent advanced experimental methods research infrastructure. A statement that in particular is true for...