316 citations · 541 across the 5 of their papers we have counts for
5 papers
Spectroscopic analysis of vibrational coupling in multi-molecular excited states
Sebastian Hammer, Theresa Linderl, Kristofer Tvingstedt +2
Multi-molecular excited states accompanied by an intra- and inter-molecular geometric relaxation are commonly encountered in optical and electrooptical studies and applications of…
On the Absence of Triplet Exciton Loss Pathways in Non-Fullerene Acceptor based Organic Solar Cells
Maria S. Kotova, Giacomo Londi, Johannes Junker +6
We investigate the viability of highly efficient organic solar cells (OSCs) based on non-fullerene acceptors (NFA) by taking into consideration efficiency loss channels and stabili…
A Theoretical Perspective on Transient Photovoltage and Charge Extraction Techniques
Oskar J. Sandberg, Kristofer Tvingstedt, Paul Meredith +1
Transient photovoltage (TPV) is a technique frequently used to determine charge carrier lifetimes in thin-film solar cells such as organic, dye sensitized and perovskite solar cell…
Removing Leakage and Surface Recombination in Planar Perovskite Solar Cells
K. Tvingstedt, L. Gil-Escrig, C. Momblona +6
Thin-film solar cells suffer from various types of recombination, of which leakage current usually dominates at lower voltages. Herein, we demonstrate first a three-order reduction…
Persistent photovoltage in methylammonium lead iodide perovskite solar cells
A. Baumann, K. Tvingstedt, M. C. Heiber +4
Open circuit voltage decay measurements are performed on methylammonium lead iodide (CH3NH3PbI3) perovskite solar cells to investigate the charge carrier recombination dynamics. Th…