PVSAT-15 Invited Speakers

Dr Timothy J Silverman - NREL 

"Failure and performance of PV modules in use" 
Dr Timothy J Silverman is a staff scientist at the US National Renewable Energy Laboratory and a visiting academic at Loughborough University. Since 2011 he has studied performance and reliability in photovoltaic modules and systems using computational modelling and simulation, indoor and outdoor testing, and failure analysis in the laboratory and the field. Favourite topics include the degradation of solder bonds, interconnects, and cracked cells in crystalline silicon modules; shadow-induced permanent efficiency loss and performance metastability in thin-film modules; thermal performance analysis and enhancement for all terrestrial modules; and diagnostic luminescence and thermal imaging. Dr Silverman has a PhD in Mechanical Engineering from The University of Texas at Austin.

Prof Yanfa Yan - University of Toledo 
"Understanding of CdTe Thin-Film Solar Cells"
Yanfa Yan is a Professor and an Ohio Research Scholar Endowed Chair for Photovoltaics Innovation and Commercialization in the Department of Physics and Astronomy at the University of Toledo (UT). He earned MS and Ph D in Physics from Wuhan University. Previously, he was a Principal Scientist at the National Renewable Energy Laboratory (NREL), USA. His research interest includes (1) Theory of defect physics and electronic properties in semiconductors; (2) Materials synthesis and thin film solar cell fabrication; and Nanoscale characterization of thin film solar cell materials. His current research efforts include developing processes to fabricate high efficiency thin-film solar cells (CdTe and perovskite). He has received DOE/EERE Young Investigator and R&D 100 awards. He is a Fellow of the American Physical Society.

Dr Rachael Evans - University of Cambridge
"Materials Engineering of Spectral Converters for Luminescent Solar Devices"
Dr Rachel Evans is a University Lecturer in the Department of Materials Science and Metallurgy at the University of Cambridge. She obtained her MChem and PhD in Physical Chemistry from Swansea University. She was previously an Associate Professor in Physical Chemistry at Trinity College Dublin, following postdoctoral fellowships at the Université Paris-Sud, France and the University of Coimbra, Portugal. Rachel’s research is focused on the design of photoresponsive soft materials for luminescent solar devices, stimuli-responsive systems and organic photovoltaics. She was recently awarded an ERC consolidator grant to advance her work on spectral converter materials. Rachel is a Fellow of the Royal Society of Chemistry and the Institute of Materials, Minerals and Mining.

Dr Samuel Stranks - University of Cambridge
"Imaging Defects in Halide Perovskite Solar Cells"
Sam Stranks is a Royal Society University Research Fellow leading a research group in the Cavendish Laboratory, University of Cambridge, focusing on emerging solar and light emitting technologies. He completed his PhD at Oxford University as a Rhodes Scholar, followed by a Marie Curie Fellowship at MIT. In 2017, he was named by the MIT Technology Review as one of the 35 under 35 innovators in Europe and in 2018 he received the Henry Moseley Medal and Prize from the Institute of Physics for his pioneering work on halide perovskite optoelectronics.

Dr Ross Hatton - University of Warwick
"Transparent Electrodes for Emerging Thin Film Photovoltaics"
Ross Hatton is an Associate Professor of Chemistry at the University of Warwick in the United Kingdom (UK) and holder of a UK Engineering and Physical Science Early Career fellowship. He was awarded his PhD in 2003 from the University of Nottingham (UK) and a five-year Royal Academy of Engineering Research Fellowship in 2007. He has published over 50 papers in peer reviewed international journals including Nature Energy, Nature Communications and Advanced Materials and has a long-standing interest in exploring the utility of nano-structured materials in emerging thin film photovoltaics, including carbon nanotubes, metal nanoparticles and nano-structured metal films. His research is primarily focused on the development of sustainable electrodes for organic and perovskite photovoltaics.

Phil Hollis - Centre for Process Innovation Ltd.
"Building and Integrating PV Modules for an Unmanned Air Satellite"
Phil Hollis is a technology manager at CPI's printable electronics centre. He is a graduate in applied physics and electronics with over 40 years of experience in semiconductor device technology in large and small organisations.