Uli Lemmer

Ultrafast directional hot carrier transfer in bilayer perovskite heterojunctions

Abstract Hot carrier dynamics in semiconductors govern unique mechanisms in high-performance devices with potential to exceed thermodynamic limits of optoelectronic device efficiency. Here, we report ultrafast directional transfer of hot carriers within laminated bilayer CsPbBr 3...

Laser‐Induced Local De‐Doping in Organic Semiconductors

ABSTRACT This study explores control of the doping level in organic semiconductor films using scanning continuous wave laser radiation. The feasibility of this one‐step non‐contact post‐deposition approach is explored for a benchmark material system comprising the high‐mobility p...