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Overview

Our research generally focuses on the optical and electronic properties of emerging semiconductor systems with a particular focus on photovoltaics and lighting applications. We use spectroscopic techniques to assess the optoelectronic quality of materials, relate these characteristics directly to their chemical and structural properties, and construct optimised devices including solar cells, light-emitting diodes and lasers. A particularly unique approach is to monitor the photophysics of devices under operating conditions with high spatial and temporal resolution. We are particularly interested in understanding the photophysical properties and potential device applications of new absorber and emitter materials including metal halide perovskites and organic semiconductors.

You can find more about our current research by looking at our recent and ongoing projects page.

Our experimental approaches include:

  • Perovskite, hybrid and organic photovoltaic and light-emitting device fabrication and characterisation
  • Carbon nanotube–polymer nanohybrid synthesis and characterisation
  • Time-resolved techniques including time-correlated single photon counting (TCSPC), photoinduced absorption (PIA) and transient absorption (TAS)
  • Time-resolved confocal photoluminescence (PL) and electroluminescence (EL) mapping
  • Steady-state photoluminescence and absorption spectroscopy
  • Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) with chemical and structural analyses such as energy-dispersive X-Ray (EDX) spectroscopy and X-Ray Photoelectron Spectroscopy (XPS)
  • Bulk X-Ray Diffraction (XRD), micro- and nano-XRD at synchrotron beamlines (Diamond, ALS)