Publications
 



Low damage electrical modification of 4H-SiC via ultrafast laser irradiation
M.Ahn, R.Cahyadi, J.Wendorf, W.Bowen, B.Torralva, S.Yalisove, J.Phillips
12/04/2018

The electrical properties of 4H-SiC under ultrafast laser irradiation in the low fluence regime (<0.50 J/cm2) are presented. The appearance of high spatial frequency laser induced periodic surface structures is observed at a fluence near 0.25 J/cm2 and above, with variability in environments like in air, nitrogen, and a vacuum.

Electro-polymerisation of 3,4-ethylenedioxythiophene on reticulated vitreous carbon in imidazolium-based chloroaluminate ionic liquid as energy storage material
T. Schoetz, C. Ponce de Leon, A. Bund, M.Ueda
14/03/2018

This work shows the electro-polymerisation of thin film poly(3,4-ethylenedioxythiophene) on three-dimensional reticulated vitreous carbon substrates by cyclic voltammetry and pulsed polymerisation methods from a Lewis neutral chloroaluminate ionic liquid containing 3,4-ethylenedioxythiophene monomer.

Electro-polymerisation and characterisation of PEDOT in Lewis basic, neutral and acidic EMImCl-AlCl3 ionic liquid
T. Schoetz, C. Ponce de Leon, A. Bund, M. Ueda
10/01/2018

This work studied the electro-polymerisation of 3,4-ethylenedioxythiophene (EDOT) and its electrochemical behavior in Lewis acidic, neutral and basic chloroaluminate ionic liquid 1-ethyl-3-methylimidazolium chloride aluminum chloride (EMImCl-AlCl3) by cyclic voltammetry. It was found that the electro-polymerisation on vitreous carbon only occurs in Lewis neutral EMImCl-AlCl3 as a dark blue-violet film whereas the electro-polymerisation in a Lewis acidic or basic compositions is not possible due to the interactions between the conductive polymer and the ionic liquid as well as the potential stability limits of the electrolyte.

Perspective—State of the Art of Rechargeable Aluminum Batteries in Non-Aqueous Systems
T. Schoetz, C. Ponce de Leon, M. Ueda, A. Bund
15/11/2017

The main challenges to implement sustainable energy storage technologies are the utilization of earth-abundant recyclable materials, low costs, safe cell reactions and high performance, all in a single system. Aluminum batteries seem to cover these requirements. However, their practical performance is still not comparable with the state of the art high performance batteries.

Preparation and characterization of a rechargeable battery based on poly-(3,4-ethylenedioxythiophene) and aluminum in ionic liquids
T. Schoetz , M. Ueda, A. Bund, C. Ponce de Leon
30/06/2017

This paper presents a feasibility study of a non-aqueous rechargeable battery based on aluminum and poly-(3,4-ethylenedioxythiophene) conductive polymer in a chloroaluminate ionic liquid. The polymer was electrodeposited on a vitreous carbon working electrode in a chloride aqueous solution and the structure was analyzed by scanning electron microscopy. The doping/de-doping mechanism of chloride ions into the polymer structure was studied using a quartz crystal microbalance and cyclic voltammetry. The deposition/dissolution of the aluminum negative electrode were investigated by electrochemical and microscopic methods.

Rectifier Design Challenges for RF Wireless Power Transfer and Energy Harvesting Systems
A Collado, S Daskalakis, K Niotaki, R Martinez, F Bolos, A Georgiadis
30/06/2017

The design of wireless power transfer (WPT) and energy harvesting (EH) solutions poses different challenges towards achieving maximum RF-DC conversion efficiency in these systems. This paper covers several selected challenges when developing WPT and electromagnetic EH solutions, such as the design of multiband and broadband rectifiers, the minimization of the effect that load and input power variations may have on the system performance and finally the most optimum power combining mechanisms that can be used when dealing with multielement rectifiers.

ICON Annual Review 2016
Dr T Prodromakis, A Westley
28/04/2017

ICON's first year has been very exciting and impactful.  We have focussed on setting in motion the recruitment of the Lloyd's Register Foundation Doctoral Students, developing unique programmes that surpass geographical and disciplinary boundaries. 

As ICON grows, we will further develop our social media presence for enhancing the public understanding of risk and the new opportunities that nanotechnology brings for making the world a safer place. 

Five ways nanotechnology is securing your future
Dr T Prodromakis
22/03/2016

The past 70 years have seen the way we live and work transformed by two tiny inventions. The electronic transistor and the microchip are what make all modern electronics possible, and since their development in the 1940s they’ve been getting smaller. Today, one chip can contain as many as 5 billion transistors. If cars had followed the same development pathway, we would now be able to drive them at 300,000mph and they would cost just £3 each.

 

Foresight review of resilience engineering
Professor M Fitzpatrick, Professor R Clegg et al
01/11/2015

How resilience engineering could enhance safety through the improved resilience of engineered structures, systems, organisations and communities around the world.

Foresight review of Nanotechnology
Professor Sir M Welland, Professor R Clegg et al.
01/04/2015

Is nanotechnology the next industrial revolution? Whatever its revolutionary claims the technology is here now. It heralds the ability to manufacture things – materials, components, systems – with atomically precise control. It is the ultimate in miniaturisation; molecular manufacturing.

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