3 papers
physics.app-ph2021
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…
cond-mat.mtrl-sci2019
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…
cond-mat.mtrl-sci2018
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…