2.6k citations · 3.1k across the 18 of their papers we have counts for
18 papers
Quantum efficiency enhancement of bialkali photocathodes by an atomically thin layer on substrates
Hisato Yamaguchi, Fangze Liu, Jeffrey DeFazio +15
We report quantum efficiency (QE) enhancements in accelerator technology relevant antimonide photocathodes (K2CsSb) by interfacing them with atomically thin two-dimensional (2D) cr…
Signatures of defect-localized charged excitons in the photoluminescence of monolayer molybdenum disulfide
Andre Neumann, Jessica Lindlau, Manuel Nutz +3
We study spatial photoluminescence characteristics of neutral and charged excitons across extended monolayer MoS synthesized by chemical vapor deposition. Using two-dimensional…
Opto-valleytronic imaging of atomically thin semiconductors
Andre Neumann, Jessica Lindlau, Léo Colombier +6
Transition metal dichalcogenide semiconductors represent elementary components of layered heterostructures for emergent technologies beyond conventional opto-electronics. In their…
Tuning the Fröhlich exciton-phonon scattering in monolayer MoS2
Bastian Miller, Jessica Lindlau, Max Bommert +5
A direct band gap, remarkable light-matter coupling as well as strong spin-orbit and Coulomb interaction establish two-dimensional (2D) crystals of transition metal dichalcogenides…
Polariton hyperspectral imaging of two-dimensional semiconductor crystals
Christian Gebhardt, Michael Förg, Hisato Yamaguchi +8
Atomically thin crystals of transition metal dichalcogenides (TMDs) host excitons with strong binding energies and sizable light-matter interactions. Coupled to optical cavities, m…
Free-standing bialkali photocathodes using atomically thin substrates
Hisato Yamaguchi, Fangze Liu, Jeffrey DeFazio +10
We report successful deposition of high quantum efficiency (QE) bialkali antimonide K2CsSb photocathodes on graphene films. The results pave a pathway towards an ultimate goal of e…