Chemical Photonics | Hedley Lab

In the Chemical Photonics | Hedley Lab we investigate the fundamental chemical physics and spectroscopy of light emitting materials.  We do this by utilising advanced single molecule spectroscopy techniques that we develop and can aid understanding of how energy flows in molecules, how molecules move and how we can control this.  One of our primary areas of interest is in utilising the photon statistics of light emitted by single molecules, as this can give us a unique understanding of the nanoscale behaviour of excited states.  Our chief aim is to understand the fundamental photophysical processes in materials that are used in organic semiconductors such as organic light emitting diodes (OLEDs) and organic photovoltaic cells, and via optimisation of the chemical structure, enhance desirable optoelectronic properties.

  • G.J. Hedley et al., Determining the optimum morphology in high-performance polymer-fullerene organic photovoltaic cells, Nature Communications, 4, 2867 (2013) DOI:10.1038/ncomms3867 
  • L. Bergmann, G.J. Hedley et al., Direct observation of intersystem crossing in a thermally activated delayed fluorescence copper complex in the solid state, Science Advances, 2, 1 (2016) DOI:10.1126/sciadv.1500889
  • G.J. Hedley, F. Steiner, J. Vogelsang, J.M. Lupton, Determining the True Optical Gap in a High-Performance Organic Photovoltaic Polymer Using Single-Molecule Spectroscopy, Journal of Physical Chemistry Letters, 8, 15 (2017) DOI:10.1021/acs.jpclett.7b01363 
  • G.J. Hedley, F. Steiner, J. Vogelsang, J.M. Lupton, Fluctuations in the Emission Polarization and Spectrum in Single Chains of a Common Conjugated Polymer for Organic Photovoltaics, Small, 14, 15 (2018) DOI:10.1002/smll.201804312

Hedley single molecule collage