activity
20182023
most citedUltrafast generation and decay of a surface metal

18 citations · 29 across the 5 of their papers we have counts for

collaborators

5 papers

cond-mat.mtrl-sci2023

Right On Time: Ultrafast Charge Separation Before Hybrid Exciton Formation

Lukas Gierster, Olga Turkina, Jan-Christoph Deinert +6

Organic/inorganic hybrid systems offer great potential for novel solar cell design combining the tunability of organic chromophore absorption properties with high charge carrier mo…

cond-mat.mtrl-sci2020★ 18 cited

Ultrafast generation and decay of a surface metal

Lukas Gierster, Sesha Vempati, Julia Stähler

Band bending at semiconductor surfaces induced by chemical doping or electric fields can create metallic surfaces with properties not found in the bulk, such as high electron mobil…

cond-mat.mtrl-sci2019★ 4 cited

Photoexcited organic molecules to highly efficient autoionization

Sesha Vempati, Lea Bogner, Clemens Richter +4

The conversion of optical and electrical energy in novel materials is key to modern optoelectronic and light-harvesting applications. Here, we investigate the equilibration dynamic…

cond-mat.mtrl-sci2018★ 7 cited

Uncovering the (un-)occupied electronic structure of a buried hybrid interface

S. Vempati, J. -C. Deinert, L. Gierster +10

The energy level alignment at organic/inorganic (o/i) semiconductor interfaces is crucial for any light-emitting or -harvesting functionality. Essential is the access to both occup…

cond-mat.mtrl-sci2018

Revealing the Competing Contributions of Charge Carriers, Excitons, and Defects to the Non-Equilibrium Optical Properties of ZnO

Laura Foglia, Sesha Vempati, Boubacar Tanda Bonkano +4

Due to its wide band gap and high carrier mobility, ZnO is an attractive material for light-harvesting and optoelectronic applications. Its functional efficiency, however, is stron…