Carpignano, Francesca, Silva, Gloria, Noual, Adnane, Pechstedt, Katrin, Grant-Jacob, James, Brocklesby, W.S., Horak, Peter, Boden, Stuart and Melvin, Tracy (2016) Nanopores within 3D-structured gold film for sensing applications. 18th Italian National Conference on Photonic Technologies (Fotonica 2016), Italy. 06 - 08 Jun 2016. (doi:10.1049/cp.2016.0933).
Abstract
The design and fabrication of nanopores within three-dimensionally structured gold films with spherical microcavities of 1.2 µm diameter and 0.6 µm deep in hexagonal close-packed arrays, are described. The cavities are fabricated by electroplating gold around self-assembled arrays of polymer spheres. Following removal of the spheres, and 'lift-off' of the 3D structured gold film, some of the microcavities were milled with a Helium Ion Microscope to provide nanopores through the centre of the microcavity base right through the film. The geometry of the nanopore within the device is designed using theoretical approaches to provide the optimal electric field intensity in the very centre of the nanopore when excited with light of ~ 600 nm (in water). In this paper we report the theoretical simulations used to evaluate the optimal geometry of the nanopore within the centre/base of the gold microcavity. Although a number of various geometries and sizes of pores were considered the theoretical results provide evidence that a pore of 50nm with rounded corners will provide the greatest electrical field intensity inside the pore and the fabrication results provide a demonstrated practical approach for creation of these nanopores within these 3D gold structured films.
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- Faculties (pre 2018 reorg) > Faculty of Physical Sciences and Engineering (pre 2018 reorg) > Electronics & Computer Science (pre 2018 reorg) > Nanoelectronics and Nanotechnology (pre 2018 reorg)
Current Faculties > Faculty of Engineering and Physical Sciences > School of Electronics and Computer Science > Electronics & Computer Science (pre 2018 reorg) > Nanoelectronics and Nanotechnology (pre 2018 reorg)
School of Electronics and Computer Science > Electronics & Computer Science (pre 2018 reorg) > Nanoelectronics and Nanotechnology (pre 2018 reorg) - Faculties (pre 2018 reorg) > Faculty of Physical Sciences and Engineering (pre 2018 reorg) > Optoelectronics Research Centre (pre 2018 reorg)
Current Faculties > Faculty of Engineering and Physical Sciences > Zepler Institute for Photonics and Nanoelectronics > Optoelectronics Research Centre (pre 2018 reorg)
Zepler Institute for Photonics and Nanoelectronics > Optoelectronics Research Centre (pre 2018 reorg)
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