Browsing by Author "DUESBERG, GEORG"
Now showing items 1-20 of 53
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All-printed thin-film transistors from networks of liquid-exfoliated nanosheets
COLEMAN, JONATHAN; NICOLOSI, VALERIA; GODWIN, IAN; DUESBERG, GEORG (2017) -
Basal-Plane Functionalization of Chemically Exfoliated Molybdenum Disulfide by Diazonium Salts
DUESBERG, GEORG; COLEMAN, JONATHAN; NICOLOSI, VALERIA; SANVITO, STEFANO; MC EVOY, NIALL (2015) -
Cell Proliferation Tracking Using Graphene Sensor Arrays
DUESBERG, GEORG; HEGNER, MARTIN (2012)The development of a novel label-free graphene sensor array is presented. Detection is based on modification of graphene FET devices and specifically monitoring the change in composition of the nutritive components in ... -
Characterization of graphene-silicon Schottky barrier diodes using impedance spectroscopy
DUESBERG, GEORG; YIM, CHANYOUNG; MCEVOY, NIALL (2013)We investigate the interface characteristics of graphene-silicon Schottky barrier diodes using dc current-voltage measurements and ac impedance spectroscopy (IS). Diode parameters, including the ideality factor and the ... -
Chemically Modulated Graphene Diodes
DUESBERG, GEORG (2013)We report the manufacture of novel graphene diode sensors (GDS), which are composed of monolayer graphene on silicon substrates, allowing exposure to liquids and gases. Parameter changes in the diode can be correlated with ... -
A Commercial Conducting Polymer as Both Binder and Conductive Additive for Silicon Nanoparticle-Based Lithium-Ion Battery Negative Electrodes
COLEMAN, JONATHAN; NICOLOSI, VALERIA; DUESBERG, GEORG; MCEVOY, NIALL (2016)This work describes silicon nanoparticle-based lithium-ion battery negative electrodes where multiple non-active electrode additives (usually carbon black and an inert polymer binder) are replaced with a single conductive ... -
Comparison of carbon nanotube forest growth using AlSi, TiSiN, and TiN as conductive catalyst supports
DUESBERG, GEORG (2014)We evaluate carbon nanotube growth by employing AlSi, TiSiN and TiN as conductive catalyst supports. Using a wide range of chemical vapour deposition conditions, we find that only AlSi and TiSiN yield homogeneously-sized ... -
A comparison of catabolic pathways induced in primary macrophages by pristine single walled carbon nanotubes and pristine graphene
COLEMAN, JONATHAN; NICOLOSI, VALERIA; VOLKOV, YURI; O'NEILL, LUKE; MCGOVERN, IGNATIUS; NERL, HANNAH; DUESBERG, GEORG; MCEVOY, NIALL (2016)Understanding the correlation between the physico-chemical properties of carbonaceous nanomaterials and how these properties impact on cells and subcellular mechanisms is critical to their risk assessment and safe translation ... -
Controlled synthesis of transition metal dichalcogenide thin films for electronic applications
REZVANI, EHSAN; LEE, KANGHO; BERNER, NINA; MCEVOY, NIALL; HALLAM, TOBY; DUESBERG, GEORG (2014)Two dimensional transition metal dichalcogenides (TMDs) are exciting materials for future applications in nanoelectronics, nanophotonics and sensing. In particular, sulfides and selenides of molybdenum (Mo) and tungsten ... -
DMF-exfoliated graphene for electrochemical NADH detection
COLEMAN, JONATHAN; KEELEY, GARETH; O'NEILL, ARLENE; DUESBERG, GEORG (2011)The electrochemical detection of NADH is of considerable interest because it is required as a cofactor in a large number of dehydrogenase-based biosensors. However, the presence of oxygenated functionalities on the electrode ... -
The Effect of Downstream Plasma Treatments on Graphene Surfaces
DUESBERG, GEORG; KUMAR, SHISHIR; MCEVOY, NIALL; LEE, KANGHO; MCEVOY, NIALL (2012)This paper reports on the effects of growth, transfer and annealing procedures on graphene grown by chemical vapour deposition. A combination of Raman spectroscopy, electrical measurements, atomic force microscopy, and ... -
Effect of percolation on the capacitance of supercapacitor electrodes prepared from composites of manganese dioxide nanoplatelets and carbon nanotubes
COLEMAN, JONATHAN; BERNER, NINA; DUESBERG, GEORG; NICOLOSI, VALERIA; MCEVOY, NIALL (2014)Here we demonstrate significant improvements in the performance of supercapacitor electrodes based on 2D MnO2 nano-platelets by the addition of carbon nanotubes. Electrodes based on MnO2 nano-platelets do not display high ... -
Electrical properties of high density arrays of silicon nanowire field effect transistors
DUESBERG, GEORG (2013)Proximity effect corrected e-beam lithography of hydrogen silsesquioxane on silicon on insulator was used to fabricate multi-channel silicon nanowire field-effect transistors (SiNW FETs). Arrays of 15-channels with a line ... -
Electrochemical ascorbic acid sensor based on DMF-exfoliated graphene
COLEMAN, JONATHAN; DUESBERG, GEORG; KEELEY, GARETH; O'NEILL, ARLENE; MCEVOY, NIALL; MCEVOY, NIALL (2010)This paper describes the electron transfer properties of graphene nano-sheets (GNSs) immobilised on pyrolysed photoresist film (PPF) electrodes. The former are produced by the dispersion and exfoliation of graphite in ... -
Flexible, Transparent, Conducting Films of Randomly Stacked Graphene from Surfactant-Stabilized, Oxide-Free Graphene Dispersions
DUESBERG, GEORG; COLEMAN, JONATHAN (2010)We have exfoliated graphite in water to give dispersions of mono and few-layer graphene stabilised by surfactant. These dispersions can be used to form thin, disordered films of randomly stacked, oxide-free, few-layer ... -
Functionalization of Liquid-Exfoliated Two-Dimensional 2H-MoS2
DUESBERG, GEORG; COLEMAN, JONATHAN; MCDONALD, AIDAN (2015) -
Gas phase controlled deposition of high quality large-area graphene films
DUESBERG, GEORG; MCEVOY, NIALL; NICOLOSI, VALERIA; BLAU, WERNER (2010)A gas phase controlled graphene synthesis resembling a CVD process that does not critically depend on cooling rates is reported. The controllable catalytic CVD permits high quality large-area graphene formation with deft ... -
Graphene field emission devices
DUESBERG, GEORG (2014)Graphene field emission devices are fabricated using a scalable process. The field enhancement factors, determined from the Fowler-Nordheim plots, are within few hundreds and match the theoretical predictions. The devices ... -
Graphene field emission devices
DUESBERG, GEORG (2014)Graphene field emission devices are fabricated using a scalable process. The field enhancement factors, determined from the Fowler-Nordheim plots, are within few hundreds and match the theoretical predictions. The devices ... -
Growth of high-density carbon nanotube forests on conductive TiSiN supports
DUESBERG, GEORG (2015)e grow vertically aligned carbon nanotube forests on refractory conductive films of TiSiN and achieve area densities of (5.1 ± 0.1) × 1012 tubes cm−2 and mass densities of about 0.3 g cm−3. The TiSiN films act as diffusion ...