3 papers
cond-mat.mtrl-sci2026
Operando Raman probing of mode selective electron phonon coupling in two dimensional halide perovskites
Tufan Paul, Helena Boom, Lilian Skokan +8
Electron phonon coupling governs charge transport, carrier relaxation, and polaron formation in halide perovskites, yet its microscopic origin in low dimensional systems remains po…
cond-mat.mtrl-sci2026
Halide diffusion in mixed-halide perovskites and heterojunctions
Viren Tyagi, Mike Pols, Geert Brocks +1
Migration of halide defects guides ion transport in metal halide perovskites and controls the kinetics of halide mixing and phase separation. We study the diffusion of halide vacan…
cond-mat.mtrl-sci2024
Tracing Ion Migration in Halide Perovskites with Machine Learned Force Fields
Viren Tyagi, Mike Pols, Geert Brocks +1
Halide perovskite optoelectronic devices suffer from chemical degradation and current-voltage hysteresis induced by migration of highly mobile charged defects. Atomic scale molecul…