3 papers
cond-mat.mes-hall2026★ 1 cited
Intra- and Interlayer Excitonic Fine Structure of the Two-Dimensional Perovskite (PEA)PbI
Patrick Grenzer, Fabian Lie, Klaus H. Eckstein +2
Two-dimensional halide perovskites host strongly bound excitons whose fine structure controls polarization selection rules and radiative recombination, yet several spectral feature…
physics.chem-ph2021
Infrared Study of Charge Carrier Confinement in Doped (6,5) Carbon Nanotubes
Klaus H. Eckstein, Florian Hirsch, Richard Martel +1
Electronic degrees of freedom and their coupling to lattice vibrations in semiconductors can be strongly modified by doping. Accordingly, the addition of surplus charge carriers to…
cond-mat.mtrl-sci2019
Quantifying Doping Levels in Carbon Nanotubes by Optical Spectroscopy
Klaus H. Eckstein, Florian Oberndorfer, Melanie M. Achsnich +2
Controlling doping is essential for a successful integration of semiconductor materials into device technologies. However, the assessment of doping levels and the distribution of c…