5 papers · 1 filter
Operando multidimensional spectroscopy reveals A-site-dependent carrier cooling in perovskite solar cells
Edoardo Amarotti, Luca Bolzonello, Qi Shi +6
Understanding how photogenerated carriers dissipate excess energy in operating perovskite solar cells is essential for connecting ultrafast photophysics with photovoltaic function…
Disorder-Induced Localization of Molecular Polaritons Despite Spectroscopic Strong Coupling
Amitav Sahu, Tönu Pullerits
Molecular polaritons are hybrid light--matter quasiparticles whose collective character is often associated with molecular excitations extending over many emitters. However, molecu…
Photocurrent detected 2D spectroscopy via pulse shaper: insights and strategies for optimally untangling the nonlinear response
E. Amarotti, L. Bolzonello, S. -H. Lee +4
Action-detected two-dimensional electronic spectroscopy (A-2DES) provides valuable insights into ultrafast dynamics within functional materials and devices by measuring incoherent…
Dimensionality-dependent electronic and vibrational dynamics in low-dimensional organic-inorganic tin halides
Yanmei He, Xinyi Cai, Rafael B. Araujo +7
Photo-induced dynamics of electronic processes in materials are driven by the coupling between electronic and nuclear degrees of freedom. Here we construct 1D and 2D organic-inorga…
AI-enhanced High Resolution Functional Imaging Reveals Trap States and Charge Carrier Recombination Pathways in Perovskite
Qi Shi, Tönu Pullerits
Understanding and controlling charge carrier recombination dynamics is essential for enhancing the performance of metal halide perovskite optoelectronic devices. In this study, we…