40 citations · 109 across the 8 of their papers we have counts for
8 papers
What Photocurrent Versus Effective Voltage Tells Us About Charge Generation in Organic Solar Cells
Ardalan Armin, Austin M. Kay, Drew B. Riley +2
The photocurrent of an organic solar cell is routinely plotted against an effective voltage and used to extract an exciton dissociation probability, and through it a free-charge ge…
Roadmap on UV-C photodetectors: materials, applications and industry perspectives
Fabien Massabuau, Drew Riley, Paul Meredith +44
UV-C photodetectors are poised to play an increasingly important role in future photonic technologies, driven by the rapid emergence of UV-C light sources and new wide bandgap semi…
A quasi steady-state measurement of exciton diffusion lengths in organic semiconductors
Drew B. Riley, Oskar J. Sandberg, Wei Li +2
Understanding the role that exciton diffusion plays in organic solar cells is a crucial to understanding the recent rise in power conversion effciencies brought about by non-fuller…
Direct quantification of quasi-Fermi level splitting in organic semiconductor devices
Drew B. Riley, Oskar J. Sandberg, Nora M. Wilson +6
Non-radiative losses to the open-circuit voltage are a primary factor in limiting the power conversion efficiency of organic photovoltaic devices. The dominant non-radiative loss i…
Ultrafast acoustic phonon scattering in CHNHPbI revealed by femtosecond four-wave mixing
Samuel A. March, Drew B. Riley, Charlotte Clegg +4
Carrier scattering processes are studied in CHNHPbI using temperature-dependent four-wave mixing experiments. Our results indicate that scattering by ionized impurities…
Detection of Rashba spin splitting in 2D organic-inorganic perovskite via precessional carrier spin relaxation
Seth B. Todd, Drew B. Riley, Ali Binai-Motlagh +8
The strong spin-orbit interaction in the organic-inorganic perovskites tied to the incorporation of heavy elements (\textit{e.g.} Pb, I) makes these materials interesting for appli…
Simultaneous observation of free and defect-bound excitons in CH3NH3PbI3 using four-wave mixing spectroscopy
Samuel A. March, Charlotte Clegg, Drew B. Riley +3
Solar cells incorporating organic-inorganic perovskite, which may be fabricated using low-cost solution-based processing, have witnessed a dramatic rise in efficiencies yet their f…
Four-wave mixing in perovskite photovoltaic materials reveals long dephasing times and weaker many-body interactions than GaAs
Samuel A. March, Drew B. Riley, Charlotte Clegg +6
Perovksite semiconductors have shown promise for low-cost solar cells, lasers and photodetectors, yet their fundamental photophysical properties are not well understood. Recent obs…