For enquires about the group please contact:
Prof Michael B. Johnston (group leader), M.Johnston@physics.ox.ac.uk
Clarendon Laboratory, Parks Road, Oxford, OX1 3PU, United Kingdom.
Lim et al. ACS Energy Lett., 9:4127-4135 (Jul 2024)
[
pdf ][ DOI:10.1021/acsenergylett.4c01473 ] We propose that the central response observed in Raman spectra from hybrid metal halide perovskites results from an interplay of the significant broadening of Raman-active, low-energy phonon modes that are strongly amplified by a population component from Bose-Einstein statistics toward low frequency.
Lin et al. Science, 384:767-775 (May 2024)
[
pdf ][ DOI:10.1126/science.ado2302 ] We demonstrate a vapor-based amino-silane passivation that reduces photovoltage deficits to around 100 millivolts (>90percent of the thermodynamic limit) in perovskite solar cells of bandgaps between 1.6 and 1.8 electron volts, which is crucial for tandem applications.