32 citations · 38 across the 4 of their papers we have counts for
4 papers
Phonon anharmonicity and soft-phonon mediated structural phase transition in
Debabrata Samanta, Aritra Mazumder, Sonu Pratap Chaudhary +4
We have carried out temperature-dependent x-ray diffraction and Raman scattering experiments on powder . Trigonal to monoclinic structural transition at around 95 K i…
Carrier thermalization and zero-point bandgap renormalization in halide perovskites from the Urbach tails of the emission spectrum
Kingshuk Mukhuti, Arnab Mandal, Basabendra Roy +2
We develop techniques to study the temperature dependent localization, thermalization, and the effects of phonon scattering on the excitons in halide perovskites from the analysis…
Pressure induced emission enhancement and bandgap narrowing: experimental investigations and first principles theoretical simulations on a model halide perovskite
Debabrata Samanta, Sonu Pratap Chaudhary, Bishnupada Ghosh +3
We report high-pressure photoluminescence, Raman scattering, and x-ray diffraction measurements on a lead-free halide perovskite . At about 3 GPa, an electronic trans…
Nonlinear optical responses of all-inorganic lead halide perovskite nanostructures by time-resolved beam-deflection technique
Samrat Roy, Arnab Mandal, Akshay Raj R. +2
We have investigated nonlinear refraction in all-inorganic halide perovskites, the CsPbBr and CsPbBrI nanosheet and quantum dot colloids in toluene, by a novel…