Congratulations to Nell (Helen) Tunstall García (second from left in photo) who successfully defended her PhD thesis last month. Nell has been working on the development of luminescent downshifting polymer composites as spectral conversion layers for solar cells (supported by the European Research Council SPECTRACON project). Thank you to Prof Neil Robertson (Edinburgh) and Prof Serena Best (Cambridge) for examining. Good luck with your next steps Nell – we will all miss you!