Browsing Chemistry (Scholarly Publications) by Author "Donegan, John"
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Associative Enhancement of Time Correlated Response to Heterogeneous Stimuli in a Neuromorphic Nanowire Device
Boland, John; Donegan, John (2016)In spite of the strong interest in brain‐like or neuromorphic computation, relatively few devices have emerged whose neuromorphic behavior is embedded in the hardware itself and not reliant on external programming of ... -
Helium ion microscope generated nitrogen-vacancy centres in type Ib diamond
Zhang, Hongzhou; Mc Closkey, David; Duesberg, Georg; Donegan, John; Mc Evoy, Niall; Cross, Graham (2014)We report on position and density control of nitrogen-vacancy (NV) centres created in type Ib diamond using localised exposure from a helium ion microscope and subsequent annealing. Spatial control to <380 nm has been ... -
Helium ion microscopy of graphene: Beam damage, image quality and edge contrast
Zhang, Hongzhou; Coleman, Jonathan; Donegan, John (2013)A study to analyse beam damage, image quality and edge contrast in the helium ion microscope (HIM) has been undertaken. The sample investigated was graphene. Raman spectroscopy was used to quantify the disorder that can ...