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Showing 1 to 7 of 7 for “"Surface Work Function"”.
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Ethanol and Fluorinated Ethanol Decomposition on Single Crystal Platinum Surfaces: Structure Sensitivity and Electronic Effects
To study the surface work function effect on the surface reaction mechanism, ethanol and fluorinated ethanol decomposition have also been studied on clean and oxygen precovered (2 x 1)Pt(110) surface. The reaction mechanism is very similar on clean (2 x 1)Pt(110) as on Pt(331), except the ethanol …
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The Electron Emission Characteristics of Aluminum, Molybdenum and Carbon Nanotubes Studied by Field Emission and Photoemission.
… were setup to study the emission behavior as a function of temperature and exposure to oxygen. Changes in the surface work function as a result of thermal annealing were monitored with low energy ultra-violet photoelectron spectroscopy for flat samples while field emission energy distributions …
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Hollow cathode life time modelling
… parts: a barium oxide<br/>depletion model, a low work function surface coverage model and a plasma update<br/>procedure to calculate the effects that a change in the insert surface work function will<br/>produce on the cathode plasma.<br/><br/>The barium-oxide depletion model has been validated by …
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Microcantilever Based Potentiometric Sensors For Harsh Environment Applications
… in small module. The microcantilever surface is usually functionalized (coated with an appropriate selective layer) to facilitate adsorption of targeted molecules which changes the resonant frequency or the static bending of the cantilever. However, cantilever coating suffers from …
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Silicon Piezoresistive Microcantilever For Potentiometric Sensing
… chemical sensor inevitably depends on functionalization layers, which alter their electrical properties and change electrical conductance of the functionalization layers due to adsorption/desorption of target molecules. The amperometric chemical sensing devices have been shrunk down …
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Dry-transfer of chemical vapour deposited nanocarbon thin films
… transparent conductors offering enhanced functionality. The technologies developed could be employed as thin film field emission sources, optical sensors and substrate-free wideband optical polarisers. Detailed studies were performed on CVD Fe and Ni catalysed carbon nanotubes and …
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Study of semiconductor and metal surfaces using a novel scanning Kelvin probe.
… Probe is a capacitor device used to measure the work function phi between a vibrating reference electrode (the tip) and the surface under investigation. It utilises a non-contact, non-destructive measurement mode allowing work function measurements at temperatures in the range from (300 - 1100) …