4 papers
Momentum Conserved Ultrafast Charge Transfer Dynamics of Interlayer Excitons in vdW Heterostructures
Pranjal Kumar Gogoi, Yung-Chang Lin, Ryosuke Senga +9
Heterostructures comprising van der Waals (vdW) stacked transition metal dichalcogenide (TMDC) monolayers are a fascinating class of two-dimensional (2D) materials with unique prop…
Point Defects and Localized Excitons in 2D WSe2
Yu Jie Zheng, Yifeng Chen, Yu Li Huang +8
Identifying the point defects in 2D materials is important for many applications. Recent studies have proposed that W vacancies are the predominant point defect in 2D WSe2, in cont…
Temperature-dependent dielectric function of bulk SrTiO: Urbach tail, band edges, and excitonic effects
Pranjal Kumar Gogoi, Daniel Schmidt
We report the temperature-dependent complex dielectric function of pristine bulk SrTiO between 4.2 and 300 K within the energy range of 0.6-6.5 eV determined by spectroscopic e…
Anomalous excitons and screenings unveiling strong electronic correlations in SrTiNbO, 0x0.005
Pranjal Kumar Gogoi, Lorenzo Sponza, Daniel Schmidt +8
Electron-electron (e-e) and electron-hole (e-h) interactions are often associated with many exotic phenomena in correlated electron systems. Here, we report an observation of anoma…