Current Research TopicsA more detailed description of my research, my research group and our publications are given on Alison Walker's Research webpage
News: studentship available on Simulations of charge transport in organic polymer semiconductors deadline 9 Feb 2020A UK Engineering and Physical Sciences Research Council funded postgraduate studentship is available in my research group, application deadline 9 Feb 2020 Click here for information on the findaphd website and the link for the application Further information on organic materials and devices is given below and my papers in this area are listed on my google scholar publications list and on my research webpage . If you have questions about this studentship, please email me (contact details in the right hand column).
OutreachClick here to access my TEDX talk given at the University of Bath in 2014, a 16 minute video where I describe my research on new organic light emitting diodes, photovoltaic devices and novel solar photovoltaic cells.
Solar Commission Report I chair the Solar Commission whose aim is to show how the UK’s extensive innovation and industrial capabilities can be harnessed to enable the UK to play a leadership role in what will undoubtedly be one of the key energy generation technologies of the coming decades. This report was launched at the House of Lords Tues 9 July 2019.
Solar cellsSolar cells are devices that produce electricity from the sun's energy through the creation and subsequent dissociation of an exciton. The way in which they work is similar to natural photosynthesis.
What types are there?There are several solar cell technologies and in each, the light-active component and other cell materials are different.
Click here to access a 6 minute video where the motivation for my research on cheaper, flexible and sustainable solar cells is discussed with Petra Cameron and Aron Walsh.
Organic solar cells consist of layers and/or blends of organic materials. Organic Photovoltaic Cell, OPV
Hybrid solar cell These solar cells consist of a mixture of organic and inorganic materials.
With Petra Cameron's group in the Department of Chemistry, we have a large research effort on perovskite solar cells
Image of perovskite tin cells courtesy of University of Oxford.
Useful LinksPerovskite-Info Perovskite Solar & Light Emitting Diodes
The Solar Spark solar power education website
Protein/Enzyme simulationThe relationship between the structure of a protein and its function is vital to understanding how molecules give rise to biological effects. The flexibility and dynamics of proteins in many cases drives their functional activity. This project will develop a modelling tool combining two complementary modelling methods developed at Bath Physics and Bristol Biochemistry. The tool will be used by an experimental group in Bath Biology and Biochemistry who develop experimental approaches to rapidly test proteins for their native function based on accurate detection of their dynamics and flexibility, termed the dynamic profile. There are industrial applications and potential for use in a clinical setting.
We have studied the enzyme citrate synthase shown below responsible for catalysing the first reaction of the citric acid cycle. The temperature variation of its rigidity influences extremophiles, organisms who thrive in different temperature regimes. See our 2019 paper on my google scholar publications list
A studentship is available on this research (see News at the top of this page). The studentship project is a collaboration between
Dr Marc Van der Kamp, Bristol Biochemistry ,
Dr Chris Pudney, Bath Biology & Biochemistry
Dr Stephen Wells, Bath Chemical Engineering
Dr Tom Williams, Bristol School of Biological Sciences.
Organic Materials and Devices
We're all taught at school that plastic is an insulator, but some carbon-based small molecules and polymers do conduct electricity. Unlike silicon-based electronics, organic electronics are relatively low performance but cheap and flexible. And when they conduct, they can light up, click here for my article on lighting based on organic light emitting diodes (OLEDs), be used in displays, or convert light to current in photovoltaics.
Click here to access the press release on the Horizon2020 research project Extmos, EXTended Model of Organic Semiconductors, that I coordinate. The motivation for my research on flexible and printable electronics is discussed with Enrico Da Como. A 3 minute video has been filmed on the Extmos research that can be seen on that website and can also be found by clicking here.
What devices are there?
Organic Field Effect Transistors
used in smart packaging, brand protection, security, smartcards, distribution tagging and Radio Frequency Identification Devices, interactive media, disposable electronics, and (flexible) display backplanes.
Incorporation of flexible electronics in textiles can be used in
clothing for the public services.
Organic devices are being developed that can restore or replace functions of the human body through managing the interface between electronic devices and cells, tissues and organs.
At the University of Bath, I work with the Molecular Optolectronics group headed by Dr Enrico Da Como.
Useful LinksIDTechEx Printed electronics news
OLED-Info OLED TVs, displays and lighting
Summer schools coorganised in 2019With Aldo Di Carlo, Lucio Cina (University of Tor Vergata, Rome) ISOPHOS International School on Hybrid and Organic Photovoltaics 2019 2-6 Sept Castiglione della Pescaia, Tuscany, Italy
dedicated to PhDs, Post Docs and Researchers. This school is training event TE5 for the ITN Maestro (see right hand column).
Summer schools/Workshops coorganised in 2018With Claudio Zannoni, Paulo Pasolini (University of Bologna) EXTMOS Summer School From Molecules To Organic Electronics Materials Erice 1-7 Oct 2018
With Claudio Quarti (University of Mons) Modelling Perovskite Solar Cells Microscale to Macroscale at the nanoGe Fall Meeting 2018 22-26 Oct 2018 Málaga
Forum for the rapidly expanding and multidisciplinary community of scientists engaged in modelling perovskite solar cells.