449 citations · 773 across the 11 of their papers we have counts for
6 papers · 1 filter
Photoluminescence Mapping over Laser Pulse Fluence and Repetition Rate as a Fingerprint of Charge and Defect Dynamics in Perovskites
Shraddha M Rao, Alexander Kiligaridis, Aymen Yangui +3
Defects in metal halide perovskites (MHP) are photosensitive, making the observer effect unavoidable when laser spectroscopy methods are applied. Photoluminescence (PL) bleaching a…
Enhancing the Open-Circuit Voltage of Perovskite Solar Cells by Embedding Molecular Dipoles within their Hole-Blocking Layer
Julian F. Butscher, Sebastian Intorp, Joshua Kress +7
Engineering the energetics of perovskite photovoltaic devices through the deliberate introduction of dipoles to control the built-in potential of the devices offers the opportunity…
Effect of Precursor Stoichiometry on the Performance and Stability of MAPbBr3 Photovoltaic Devices
Lukas M. Falk, Katelyn P. Goetz, Vincent Lami +7
The wide band gap methylammonium lead bromide perovskite is promising for applications in tandem solar cells and light-emitting diodes. Despite its utility, there is only a limited…
Probing the ionic defect landscape in halide perovskite solar cells
Sebastian Reichert, Qingzhi An, Young-Won Woo +3
Point defects in metal halide perovskites play a critical role in determining their properties and optoelectronic performance; however, many open questions remain unanswered. In th…
Improved evaluation of deep-level transient spectroscopy on perovskite solar cells reveals ionic defect distribution
Sebastian Reichert, Jens Flemming, Qingzhi An +3
One of the key challenges for future development of efficient and stable metal halide perovskite solar cells is related to the migration of ions in these materials. Mobile ions hav…
Enhancing the Open-Circuit Voltage of Perovskite Solar Cells by up to 120 mV using π-Extended Phosphoniumfluorene Electrolytes as Hole Blocking Layers
Qingzhi An, Qing Sun, Andreas Weu +7
Four π-extended phosphoniumfluorene electrolytes (π-PFEs) are introduced as hole-blocking layers (HBL) in inverted architecture planar perovskite solar cells (PVSCs) with the struc…