Dr Stephen Reynolds

Steve Reynolds has been active in thin-film semiconductors research for over 20 years, and his current area of interest is in improving the efficiency and stability of thin-film silicon based solar cells. Steve spent 2005 as a Visiting Scientist in the Institute for Energy Research (IEF-5), Forschungszentrum Jülich (Germany) where he studied the influence of nanostructure on electron and hole mobilities in microcrystalline silicon, giving invited talks and seminars on his work in Bulgaria, Belgium, the Netherlands and the USA. Earlier in his career he was a BP Postdoctoral Research Fellow at the University of Edinburgh, developing test strategies for nonvolatile memory switches. On moving to Dundee, he continued to work in the field of electronic materials and devices, instigating research programmes on high-mobility oligomeric semiconductors and thin-film gas sensors. As an engineering practitioner he has carried out a diverse range of industrial consultancies in electronic systems design, and during 2006 he worked with a spin-out company of the University of Dundee on the commercialisation of a novel biomedical implant. Steve's main teaching interests are in electronic circuit design, renewable energy, microelectronics and solid-state physics, though during his career he has lectured on a wide range of physics and electronic engineering topics.

• Senior Optoelectronics Scientist, Sentient Medical Ltd.
• Visiting Scientist, Institute for Photovoltaics (IEF-5), Forschungszentrum Jülich.
• Lecturer, University of Abertay Dundee
• BP Postdoctoral Fellow, Dept. of Electrical Engineering, University of Edinburgh
• Ph.D “A Digital Data Acquisition System for Inelastic Electron Tunnelling Spectroscopy”, Leicester Polytechnic
• B.Sc. (Hons.) in Physics with Electronics, University of Leicester

• Transient and modulated photocurrent density of states spectroscopy
• Computer modelling of semiconductor materials and devices
• Thin-film silicon solar cells
• Compact Terahertz sources
• Instrumentation for low-noise signal recovery

• EG22002 Electrical and Mechanical Systems (Module Leader)
  EE31001 Analogue Electronic Systems (Module Leader)
  RE41002 Solar Energy (Module Leader)
  EE50004 Analogue Product Design (Module Leader)
  PH40003 BSc(H) Physics project
  EG40005 BEng(H) Electronics project
  PH51004 Foundation in Renewable Energy
  PH52004 Physical Concepts in Renewable Energy
  PH52005 Renewable Energy Technologies
  PH52008 MSc Renewable Energy Project

• S Reynolds, V Smirnov, C Main and A Meftah, “Intensity dependence of quantum efficiency and photo-gating effects in thin film silicon solar cells” Phys. Stat. Sol. (c) 7, 505 (2010).
• S Reynolds, R Carius, F Finger and V Smirnov, “Correlation of structural and optoelectronic properties of thin film silicon prepared at the transition from microcrystalline to amorphous growth” Thin Solid Films 517, 6392 (2009).
• A Merazga, M Herbane, C Main and S Reynolds, “Determination of the density of localised states in disordered semiconductors using transient photocurrent spectroscopy with a finite-width light pulse excitation” Phil. Mag. Lett. 88, 191 (2008).
• S. Reynolds, Z. Aneva, Z. Levi, D. Nesheva, C. Main and V. Smirnov, "Potential gas sensor applications of semiconductor thin films based on changes in photoresponse", J. Optoelectron. Adv. Mat. 9, 209-212 (2007).
• S. Reynolds, "Time-resolved photoconductivity as a probe of Carrier Transport in Microcrystalline Silicon", MRS Symp. Proc. 910, A1-1 (2006) (invited).
• T. Dylla, S. Reynolds, R. Carius and F. Finger "Electron and hole transport in microcrystalline silicon solar cells studied by time-of-flight photocurrent spectroscopy", J. Non-Cryst. Solids 352, 1093-1096 (2006).
• S. Reynolds, V. Smirnov, F. Finger, C. Main and R. Carius, "Transport and instabilities in microcrystalline silicon films", J. Optoelectron. Adv. Mat. 7, 91-98 (2005) (invited).
• V. Smirnov, S. Reynolds, C. Main, F. Finger and R. Carius, "Aging effects in microcrystalline silicon films studied by transient photoconductivity", J. Non-Cryst. Solids 338-340, 421-424 (2004).

Dr Stephen Reynolds

Division of Electronic Engineering and Physics

University of Dundee

Nethergate

Dundee

DD1 4HN