Past Group members


Dr Upendra Pandey

Upendra was born in Kushinagar in India. He received M.Sc. Electronics from DDU Gorakhpur University Gorakhpur and an M.Tech. in Opto-electronics from Shri GS Institute of Tech. & Science. Indore, Madhya Pradesh India. More than 3 years he has worked as a Senior Engineer, in Quantalase Ent. Pvt. Ltd. Indore, a laser based industry. He followed his passion towards organic electronics and did Ph.D. in Science and Technology of Mesosphase and Molecular Materials with the supervision of Prof. Attilio Golemme, University of Calabria, Italy. In January 2013 Upendra joined the Organic Semiconductor Optoelectronics group as a research fellow, using different novel organic semiconductors to improve solar cell performance. He has now taken up a position at the Indian Institute of Science.


Dr Yue Wang

Yue was born in Hubei China in 1985. She graduated from the East China Normal University in Shanghai with BEng degree in Electronic Science & Technology in 2007. The following year she went on to receive an MSc degree in Photonics and Optoelectronic Devices jointly from the Universities of St Andrews and Heriot Watt. In September 2008 she joined the Organic Semiconductor Optoelectronics group to start a PhD under the supervision of Dr Graham Turnbull and Prof. Ifor Samuel. Her PhD research was on developing organic laser fabrication by nanoimprint lithography. In 2012 Yue completed her PhD and successfully won a EPSRC Doctoral Prize Fellowship to develop a novel multifunctional explosive sensing array here in the group. In 2013 she moved to the University of York as a postdoctoral researcher.



Dr Steven Quinn

Steve initially joined the Single-Molecule Biophysics lab during the summer of 2008 as a research student before completing his M.Phys. degree in 2009. In both, he investigated the molecular basis of Alzheimer's disease using novel fluorescence based techniques. After completing his undergraduate course in St Andrews, Steve moved to the University of Oxford and worked towards the MSc. by Research degree by developing new surgical tools for fluorescence based laparoscopy. In 2010, he returned to the group and to pursue a PhD in developing a biophysical toolbox for Alzheimer's disease drug discovery under the supervision of Prof. Ifor Samuel and Dr Carlos Penedo. In 2013, Steve took up a BBSRC funded Postdoctoral Research post in Dr. Steven Magennis' lab at the University of Glasgow, where he is currently investigating DNA replication at the single-molecule level.

Dr Neil Montgomery

Neil graduated from the Lancaster University in 2008 with an Mphys in Physics. For his master's project, he completed an investigation into the study of propagation and decay of quantum turbulence in superfluid helium-4. He joined St Andrews in September 2008 to start a PhD on polymer lasers under the supervision of Prof. Ifor Samuel and Dr Graham Turnbull. In 2012 Neil began working at the UK patent office as an examiner.









Dr Salvatore Gambino

Salvatore Gambino received his first degree (MSc degree) in "Electronic and Telecommunication Engineering" from the University of Palermo (Italy) in 2001. The following year he was an INFM fellow at ENEA Research Center (Rome), working on realisation and characterisation of organic LEDs. Then he moved to the University of Palermo where he started his PhD working on charge transport properties of organic semiconductors using time of flight techniques. During his PhD he joined the Organic Semiconductor Centre here in St Andrews to carry out his research in collaboration with Prof. Ifor Samuel. In 2006 he received his PhD from the University of Palermo. The same year he was appointed research fellow at the department of Electronic Engineering (University of Palermo) working on organic solar cells. In 2008 he rejoined the Organic Semiconductor Optoelectronics group in St Andrews working on realisation and characterisation of dendrimer based organic light emitting diodes. In 2012 Salvatore took up a new position at the The Italian Institute of Technology.

Dr Georgios Tsiminis

Georgios was born in Athens, Greece where he completed his undergraduate studies at the National Technical University of Athens with a Major in Applied Physics in 2004. In September of the same year he started the MSc in Photonics and Optoelectronic Devices at the University of St Andrews and Heriot-Watt University. He completed the course with distinction and joined the Organic Semiconductor Optoelectronics group for his PhD (one- and two-photon pumped organic semiconductor lasers) under the supervision of Dr Graham Turnbull and Prof. Ifor Samuel. In 2009 he became a research fellow in the group working on UV-nanoimprint lithography for organic semiconductor lasers as part of the HYPIX project. In October 2011 Georgios moved to the Institute for Photonics and Advanced Sensing at the University of Adelaide as an ARC Super Science fellow to work on detection of trace quantities of explosives.

Dr Jack Levell

Jack studied for his undergraduate degree at Churchill College, Cambridge and graduated in 2007. His masters project involved modelling charge transport in TiO2 nanoparticles with Neil Greenham at the Cavendish laboratory there. In September 2007 he joined Ifor Samuel's group at the University of St Andrews to research optoelectronic devices for his PhD.
His work included the photophysical investigation of new materials and making organic light emitting diodes. He has worked on phosphorescent polymer dendrimer materials with high viscosity for ink jet printed light emitting diodes and the development of a solution processable enhancement layer for efficient ultraviolet photodetectors made from silicon. Jack completed his PhD in 2011 and took up a research position on organic electronics with the Holst Centre in Eindhoven.

Amy Illingworth

Amy was born in Penrith, Cumbria. In September 2004 she started at the University of Sheffield to study for an MPhys degree. This included studying abroad at the University of Alberta, Canada and a final year project on polymer optoelectronics with Professor David Lidzey. In September 2009 she joined Professor Ifor Samuel's group, looking at exciton diffusion and the morphology of organic photovoltaics. Her other interests include rock climbing and mountaineering. In 2011 Amy began a career in the financial services inductry, training in actuarial studies.






Dr Ying Yang

Ying was born in Guangzhou China and graduated with a BSc degree in Physics with a major in microelectronics from Sun Yat-Sen (Zhongshan) University. She pursued her education with a Master degree in Photonics & Optoelectronics Devices held by St Andrews and Heriot-Watt Universities. In 2006, Ying joined the Organic Semiconductor Optoelectronics group and the OSC to start a PhD under the supervision of Prof. Ifor Samuel and Dr Graham Turnbull. Her research involved the study of LED pumping methods in organic lasers. In 2011 Ying took up a postdoctoral research position at Imperial College in London.




Dr Ajay Pandey

Ajay was born in Ballia in India. He obtained a M.Sc in Physics from the University of Allahabad and the M.Tech in Laser Science and Applications from the Devi Ahilya University of Indore. With a short stay at the Indian Institute of Technology in Kanpur as a research engineer he moved to obtain a PhD with Prof. Jean-Michel Nunzi at Laboratory POMA, Angers in France. His doctoral work was on the study of physics and models of plastic solar cells. He joined us as a research fellow in May 2007 and currently worked on dendrimer based photodiodes and solar cells. In 2010 Ajay took up a postdoctoral research position with Paul Burn's group in Queensland, Australia.




Dr Paul Shaw

Paul graduated from the University of Manchester in 2001 with an Mphys in Physics and Astrophysics. He worked for a year with the Royal Bank of Scotland in Edinburgh before leaving to join the DisplayMasters Msc at the University of Dundee in 2004. Through this course Paul became very interested in OLEDs and completed an industrial placement with CDT Ltd, working on the benchmarking of OLED displays. He joined the department at St Andrews in September 2005 to start a PhD on polymer photophysics under the supervision of Prof. Ifor Samuel. Paul successfully completed his PhD in May 2009 and has now taken up a postdoctoral research position with Paul Burn's group in Queensland, Australia.



Dr Mario Giardini

Dr Mario E. Giardini graduated and received his PhD in Electronic Engineering and Computer Science at the University of Pavia, Italy. He has been a Research Scientist for the National Institute for Physics of Matter (INFM, Italy), where he developed instruments, devices and technologies for a diverse range of mainly biomedical and biotechnological applications. His research has implied a framework of constant contact with industry, including three years as head of the R&D activities of a leading microscope manufacturer. He joined Ifor Samuel's team to work on forensic applications of fluorescence detection. In 2009 Mario left the group and has moved a short distance within the School of Physics and Astronomy to work at the interface of biology and photonics.

Dr Sarah Martin

Sarah grew up in Greece and Germany, and studied physics, materials science and geology at Newnham College, Cambridge. For her MSci project she worked on organic transistors with Henning Sirringhaus, and loved it. After graduating in June 2004 she spent 2 months at the RIKEN institute in Japan on a JISTEC-REES Fellowship investigating the mobility of polymers, and travelling. She moved to St Andrews to work on an interdisciplinary PhD with Ifor Samuel and Ron Hay in September of that year. Her work formed part of the Biophotonics Collaboration research, and included investigating resonance energy transfer (FRET) in fluorescent proteins. In 2008 Sarah took up a posdoctoral position at the University of Edinburgh.

Dr Stuart Stevenson

Stuart graduated with a MEng (Hons) degree in Semiconductor Engineering from the University of Dundee, Scotland, in 2004. He joined the Polymer Optoelectronics group at the University of St Andrews, Scotland, working towards a Ph.D. in organic physics. His research interests included the study of charge transport and photo-physics in dendrimer OLED devices.









Dr Elizabeth A. Thomsen

Elizabeth graduated in 2003 from the University of Queensland, Australia with a B.Sc. (Hons) in Physics. The following year she continued there as a research assistant working on quantum dot fabrication and spectroscopy. She joined the polymer optoelectronics group in September 2004 to start a PhD under the supervision of Prof. Ifor Samuel. Her research involved characterisation and improvement of organic photovoltaics.








Dr Ruth Harding

Ruth graduated with a first class MSci in Physics from Queen Mary and Westfield College, London in 2000. She completed a PhD in Physics at Kings college London in 2004 under the supervision of Gordon Davies on using photoluminescence (PL) to characterise ion implantation defects in silicon. She moved to St Andrews in November 2004 to work on the photo physics of light emitting dendrimers. In 2008, Ruth won a sponsored position to train as a medical physics specialist in Manchester.








Dr Paul Marsh

Paul was educated at Loughborough, Heriot-Watt and St Andrews Universities graduating with a 1st class honours degree in Physics, a MSc. in laser engineering and applications and a PhD in VUV gas lasers and high voltage technology respectively. Subsequently employed at British Aerospace, later to become BAE SYSTEMS, he specialised in high power RF technology and directed infrared countermeasures. After three years, interest in the commercial sector initiated a move to the applications group at the Institute of Photonics where his prime interests were multi-photon imaging, adaptive optics, micro-machining and laser engineering. In February 2005, he joined Ifor Samuel's group conducting research into optoelectronics in the healthcare environment. In 2008 Paul moved a short distance within the School to undertake research with the Millimetre Wave & EPR Group.

Dr Jean-Charles Ribierre

Jean-Charles was born in Caen in France. He obtained a Msc in Physics from the University of Caen and the DEA Photonics and Image from the Louis Pasteur University of Strasbourg. Then, he started a PhD with Dr. Alain Fort at the IPCMS/GONLO on the influence of the viscoelastic properties on the orientational dynamics of push-pull chromophores in photorefractive guest-host polymers. After finishing his PHD, he moved to Japan for 1 year to work as JSPS postdoctoral research fellow at the Supramolecular Science Laboratory of Dr. Tatsuo Wada in RIKEN. He worked there on the optoelectronics properties of liquid carbazole based materials. He took up his position with us in May 2004 and worked on the light emitting dendrimer film morphology and interfacial interactions. In 2007, Jean-Charles returned to Japan and is currently a researcher at RIKEN.

Dr Olivier Gaudin

Olivier studied at the University of Nantes in France where he obtained a Master's degree in Physics and a DEA (Diploma of Advanced Studies) in Materials Physics. He then moved to the UK where he joined the Diamond Electronics Group in the Department of Electronic and Electrical Engineering at University College London (UCL), first as a Ph. D. student and then as a research fellow. Olivier's research activities at UCL were focused on the investigation of defect states within a range of carbon-based electronic materials and devices, such as polycrystalline CVD diamond deep UV photodetectors, hydrogenated and phosphorous-doped diamond, and polymer light emitting diodes. Olivier received a Ph. D. degree from UCL in 2002 for a thesis on "Defects within Carbon-Based Electronic Materials". He joined the Polymer Optoelectronics Group at the University of St Andrews as a research fellow to work on polymer solar cells. In 2007 Olivier left the group to work for Thorn Light.

Dr Andreas Vasdekis

Andreas graduated from the Department of Physics of the National University of Athens in 2002. He obtained an MSc (distinction) in Photonics and Optoelectronic Devices from the Universities of St Andrews and Heriot Watt. His MSc dissertation was completed in CNRS/LPN Photonic Devices for Telecoms Applications Group in Paris in September of 2003. In October of the same year he began working on his PhD thesis in polymer laser microcavities and photonic crystal devices under the supervision of Dr Graham Turnbull and in collaboration with the Photonic Crystal group. In 2007 he joined the Optics Laboratory at the Ecole Polytechnique Federal de Lausanne.

Dr Scott Richardson

Scott was born in near the Scottish border in Berwick Upon Tweed. He received an MSci degree in Astrophysics from the University of St Andrews in 2001. After spending two years working within the IT industry in London, Scott returned to St Andrews to study for his PhD in the field of polymer optoelectronics.











Dr Yim Fun Loo (Annie)

Annie graduated from the University of Dundee in 1999 with a 1st class honours in Electrical and Electronics Engineering and in 2003 with a PhD in Organic Thin film research. In October 2003, she took up the Postdoctoral research assistant position at the University of Liverpool working on new materials to replace silicon oxide for the continuous scaling down of devices. She moved to St Andrews in July 2005 to take up a research fellow position at the Organic Semiconductor Centre working on photodiode and field effect transistors using new types of dendrimers. Outside of work, she likes hillwalking, skiing & badminton. In 2006 Annie started working at Molecular Vision.



Dr Pascal Andre

Interested in Physical-Chemistry, Pascal completed his Ph.D in 2001 after having worked on microemulions, metal nanoparticles and optical near field microscopy. This first cycle of research was completed partly within a collaboration between the Universite Pierre & Marie Curie in Paris and the Commissariat a l'Energie Atomique at Saclay. He next moved to the University of North Carolina initially for a year as postdoctoral researcher affiliated to two research groups, within the NSF-Science and Technology Center for Environmentally Responsible Solvents. He then extended his stay a second year, working on solution properties of polymeric surfactants in liquid and supercritical carbon dioxide. Pascal joined the groups of Prof. David Cole-Hamilton and Prof. Ifor Samuel in October 2004 researching photophysical and optoelectronic properties of new semiconductor nanoparticles as well as hybrid organic-inorganic dendrimers. In October 2006, Pascal started a SUPA Advanced fellowship at the University of St Andrews to work on nanocolloids. A fan of interdisciplinary collaborations, he currently develops his own research projects while developing scientific collaborations within St Andrews University, Scotland and abroad.

Dr Andy Lewis

Andy was born in 1979 in Birkenhead, Merseyside but grew up in Lancashire. Educated at Bolton School from 1990-1997, he then moved to the University of St Andrews and obtained his B.Sc. Physics degree (2001) and a M.Sc. in Photonics and Optoelectronics (2002). He then joined our group for a PhD on characterisation and improvement of organic photovoltaics using both polymers and dendrimers under the supervision of Prof. Ifor Samuel. Andy's interests outside of the lab include music, computing, sport and theatre. In 2006, Andy started work at Qinetiq.






Dr Mark Goossens

Mark graduated with a MSci (Hons) in Astrophysics from the University of St Andrews in 2001. The following year he went on to receive a MSc degree in Photonics and Optoelectronic Devices jointly from the Universities of St Andrews and Heriot Watt. In September 2002 Mark joined the Polymer Optoelectronics group to start a PhD under the supervision of Prof. Ifor Samuel. His research involves studying the photophysics of organic materials and devices using ultrafast spectroscopy. In 2006, Mark started work at Edinburgh Instruments.






Dr Chris Yates

Chris studied at Imperial College, London, obtaining a first class honours degree in Chemistry in 1996. He completed a Ph.D. in 2000, studying phase stabilisation of lyotropic liquid crystal structures. Thereafter he joined CRL-Opto in Scotland, working on the development of high resolution ferroelectric liquid crystal microdisplays. In 2003 he joined the research group of Professor Gerd Heppke at the Technische Universitat, Berlin, as a European Research Fellow, studying ferro and antiferroelectric liquid crystals. Chris joined the group in January 2004, and worked towards increasing the extraction of light from OLED devices. In December 2005 Chris started working for Micro Emissive Displays.

Dr Raghu Bera

Raghu received his Ph.D. in 1999 on electrical properties of organic semiconductors from the Indian Association for the Cultivation of Science, Calcutta, India. From 2000-2003 he was a STA Fellow and postdoctoral researcher at the Nanotechnology Research Institute and Photonics Research Institute at the National Institute of Advanced Industrial Science and Technology, Japan. There, he working on optical properties of materials and OLEDs. Raghu joined the group in 2003 and worked on dendrimer photophysics and devices.







Dr Miguel Camacho-Lopez

Miguel received his PhD in physics in 2002 from Heriot-Watt University studying the picosecond third-order nonlinearities and all-optical potentiality of devices containing polydiacetylenes. In December 2000 he joined the Liquid Crystal Institute at Kent State University (Ohio, USA) as a postdoctoral fellow to work with Prof. Peter Palffy-Muhoray on the opto-mechanical properties of liquid crystal eleastomers. In March 2002 he joined the Polymer Optoelectronics Group at the University of St Andrews as a postdoctoral research fellow to work with Prof. Ifor Samuel and Prof. James Ferguson (Photobilology Unit Ninewells Hospital, Dundee) in a project financed by Scottish Enterprise to develop a novel organic light emitting polymer device to be used in Photodynamic Therapy to treat different types of skin diseases, including skin cancer. He now works at the Autonomous University of the State of Mexico.

Dr Phillip Wood

Phillip was born in Ascot in the UK. He obtained a first-class MSci in Physics from the University of Durham and started a PhD there with Ifor Samuel investigating conjugated polymers and oligomers there. He moved to St Andrews with Ifor and obtained his PhD in March 2002. He was also employed as the coordinator of the Organic Semiconductor Centre.








Dr Alison Carleton

Alison studied at the University of St Andrews and received her degree in Physics in 1998, an MSc in Optoelectronic and Laser Devices in 1999 (A jointly ran course with Heriot-Watt University) and her PhD on continuous-wave, intracavity optical parametric oscillators in April 2004. She joined Ifor Samuel's group in November 2002 as a postdoctoral research fellow and investigated microstructured polymer lasers, concentrating on circular distributed feedback lasers.







Dr Ebinazar Namdas

Ebinazar studied at the University of Bombay in India where he obtained a Ph.D on Solid State Dye Lasers. After finishing Ph.D, he moved to Hong Kong for a year at the Chinese University of Hong Kong to study dye doped sol-gel materials and then to Sweden for two years at Lund University to study conjugated polymers. He joined St Andrews University in 2001 to work on light emitting dendrimers. Ebinazar is currently a researcher at the University of California: Santa Barbara.







Dr Justin Lawrence

Justin graduated in 1998 from the University of Dublin with a B.Sc (Hons) in Applied Sciences. From 1998-2000 completed a M.Phil at the Dublin Institute of Technology. He spent part of 1999 as a researcher in the University of Liege in Belgium. Justin joined the Polymer Optoelectronics group in September 2000 as a PhD student under the supervision of Prof. Ifor Samuel. His research topic included: Optical amplification and lasing in conjugated polymers and novel semiconducting dendrimers. Fabrication of wavelength scale microstructure by soft lithography and its application to organic semiconductors. He received a PhD in 2004 and moved on to Clemson University in South Carolina. Justin has subsequently moved to Bangor University as a lecturer.



Dr Jonathan Markham

Jon was born in 1977 in Dewsbury, West Yorkshire. In late 1996 he began a Physics degree at the University of Durham, graduating in 2000 with an Msci (Hons) in the subject. A successful research based fourth year undergraduate project into the time resolved behaviour of light emitting polymers supervised by Prof. Ifor Samuel encouraged him to further his studies and undertake a PhD investigating these materials at the University of St Andrews, under the same supervision. His work involved probing the interfacial interactions of polymer materials with Indium Tin Oxide in LED contacts, with an aim to improve device efficiency and quality. Jon received his PhD in 2004 and now works in London as a patent agent.

Dr Steven Magennis

Steven was born in Edinburgh in 1974, spending his childhood in nearby Dalkeith. He studied at the University of Edinburgh and received a first class degree in chemistry in 1996 and a PhD in 2000, the latter for work on the synthesis and photoluminescence of lanthanide complexes. Steven took up his present position as a postdoctoral research fellow in St Andrews at the beginning of 2001 and and investigated the nature of the light-emitting species in conjugated polymers. Steven then became an EPSRC Advanced Fellow at the University of Manchester. He is now a Reader and group leader in the University of Glasgow






Prof. John Lupton

John studied physics at the University of Durham and joined Ifor for his PhD in late 1997. His doctoral work focused on the charge transport and photophysics of novel dendrimers for LEDs, but also covered general aspects on the optical and electrical properties of polymer LEDs. His research in Durham was augmented by extended stays with Heinz Baessler in Marburg, Germany, and Shaul Mukamel in Rochester, US. He followed Ifor to St Andrews in 2000 to take up a position as a postdoctoral research fellow. In 2001 he moved to the Max Planck Institute for Polymer Research in Mainz, Germany, where he held a position as project leader in Gerhard Wegner's department, working on ultrafast photoluminescence and electroluminescence spectroscopy of conjugated polymers. In 2002 he was appointed assistant professor at the University of Munich, where he focused on single molecule spectroscopy of conjugated polymers, triplet spectroscopy of polymer LEDs, and the photophysics of novel inorganic nanocrystal quantum dots. John is now a professor of Physics at the University of Utah.