Welcome
to the TU Dublin Nanoscience group website
The group is part of the school of Applied Science/Electronic Engineering, Tallaght Campus
Latest News
Poster presentation at the 5th International Conference on Applied Surface Science (ICASS)
The focus of ICASS is to report on current research on the role and use of surfaces in chemical and physical processes, related to nanotechnology as well as various techniques and characterisation methods related to these topics. Consequently, this made it an ideal conference to visit to report on my progress using Ag nanoparticles produced by thermal dewetting of silver thin films on SiO2/Si. The particle size distribution as a function of deposition and thermal annealing parameters in a dewetting study using atomic force microscopy in addition to SERS data of Rhodamine 6G dye show were presented.
Journal of Physics: Conference Series (Volume 2172)
A conference paper was published in the IOP science journal of physics: Conference series. In this paper, we presented our current progress towards plasmon mapping of SERS-active nanostructures using SPELS. NP have been produced on silicon substrates by dewetting of thin silver films. The morphology of these films has been characterised by atomic force microscopy (AFM), preliminary SPELS measurements have been
performed and their SERS enhancement factor has been assessed using Raman measurements of μM solutions of the Rhodamine 6G (R6G) molecule. https://iopscience.iop.org/article/10.1088/1742-6596/2172/1/012012
Oral talk given at STEMM Smart Nanomaterials (SNAIA) 2021 conference reported on the progress made towards using scanning probe energy loss spectroscopy (SPELS)
For the second year in a row Mohamed Beshr has reported on the progress of our groups work to this unique and established international science-to-technology networking platform. The oral talk took place during the “Polaritonics and Plasmonics” section of the conference and reported on the progress made towards using scanning probe energy loss spectroscopy (SPELS) to map the plasmonic behaviour of SERS-active Ag nanoparticles (NP) by investigating NPs produced through the dewetting study of Ag thin films on SiO2/Si and Ti/SiO2/Si substrates.
Published Paper. Journal of Physics: Conference Series
A conference paper was published in the IOP science journal of physics: Conference series. It briefly reviews the SPELS technique and presents some preliminary measurements obtained with the SPELS instrument and discusses them in the context of developing SERS-active nanostructures. https://iopscience.iop.org/article/10.1088/1742-6596/1866/1/012006
Mohamed Behsr invited to give talk in addition to giving poster presentation at the Microscopy and Microspectroscopy session at the Smart Nanomaterials 2020 conference on December 9th
This talk investigated the possibility of applying a novel scanning probe method, scanning probe energy loss spectroscopy (SPELS) to the analysis of the plasmonic behaviour of SERS-active metal nanostructures. The SPELS technique was briefly reviewed and some preliminary measurements obtained with the SPELS instrument were presented and discussed in the context of developing SERS-active nanostructures.
Minister Harris Announces Funding for 5 PhD and Postdoctoral at TU Dublin
Minister for Further and Higher Education, Research, Innovation and Science, Simon Harris TD, announced funding for research for five PhD and postdoctoral researchers at TU Dublin under the Irish Research Council’s Government of Ireland programme. TU Dublin Nanoscience group researcher, Mohamed Beshr being one of the announced awardees. More information can be found on the TU Dublin website .https://www.tudublin.ie/explore/news/minister-harris-announces-funding-for-5-phd-and-postdoctoral-at-tu-dublin.html.
Mohamed Beshr presents the groups research project at BIGSS e-poster virtual event
The poster outlined the proposed research of my PhD project which was to investigate the plasmonic behaviour of SERS-active substrates, produced using nanosphere and soft lithography, as a function of the nanostructure shape, size, spacing and composition using scanning probe energy loss spectroscopy (SPELS). Preliminary SPELS measurements reported by Murphy et al of Ag nanostructures prepared by maskless thermal deposition on graphite were also presented in order to demonstrate that it is possible to map the plasmon response of metal nanostructures with sub-micron resolution using this method. More information on the summer school can be found on the organisers website http://www.nuigalway.ie/tomi-physics/biggs/. The e-poster presented by Mohamed Beshr can be found here https://www.youtube.com/watch?v=XiGYOuGCTOs&list=PLHLVljJUf_EPme1wyDOVK3vjWXcg2ECot&index=23.
Get new content delivered directly to your inbox.
TU Dublin Nanoscience Group 