24 citations · 28 across the 5 of their papers we have counts for
6 papers
Real-Time Relaxation Dynamics of Dark Excitons in Mirror-Symmetric Monolayers
Rishabh Saraswat, Mantasha Ansari, Rekha Verma +1
Symmetry governs which exciton-phonon (\textit{exc-ph}) scattering channels \textit{can} exist, but not which a relaxing exciton actually uses. Combining group theory with \textit{…
Phonon-Assisted Photoluminescence and Ultrafast Exciton Dynamics in Two-Dimensional Silicon Carbide
Afreen Anamul Haque, Rishabh Saraswat, Aniket Singha +2
Phonon assisted photoluminescence provides a direct window into exciton phonon interactions in semiconductors. Using fully ab initio many-body perturbation theory, including finite…
Strain-Induced Activation of Symmetry-Forbidden Exciton-Phonon Couplings for Enhanced Phonon-Assisted Photoluminescence in MoS Monolayers
Rishabh Saraswat, Rekha Verma, Sitangshu Bhattacharya
Phonon-assisted photoluminescence (PL) in molybdenum-based two-dimensional dichalcogenides is typically weak due to the dormant phonon coupling with optically inactive momentum-dar…
Phonon-Assisted Photoluminescence and Exciton Recombination in Monolayer Aluminum Nitride
Pushpendra Yadav, Amit Agarwal, Sitangshu Bhattacharya
Efficient solid-state photon emitters with longer operating lifetimes in the ultraviolet (UV) wavelength range are crucial for optoelectronic devices. However, finding suitable mat…
Phonon Assisted Exciton Processes in Two-Dimensional Tungsten Monocarbide
Rishabh Saraswat, Miroslav Kolos, Rekha Verma +2
n this study, we utilize a rigorous ab initio-based finite momentum Bethe-Salpeter equation to investigate the photoluminescence emission in two-dimensional hexagonal tungsten carb…
Excitons, Optical Spectra, and Electronic Properties of Semiconducting Hf-based MXenes
Nilesh Kumar, Miroslav Kolos, Sitangshu Bhattacharya +1
Semiconducting MXenes are an intriguing two-dimensional (2D) material class with promising electronic and optoelectronic properties. Here, we focused on recently prepared Hf-based…