6 papers
Resolving exciton and polariton multi-particle correlations in an optical microcavity in the strong coupling regime
Victoria Quirós-Cordero, Esteban Rojas-Gatjens, MartÃn Gómez-Dominguez +7
Multi-particle correlations of exciton-polaritons and reservoir-excitons in the strong light-matter coupling regime dictate the quantum dynamics of optical microcavities. In this l…
Machine Learning Reveals Composition Dependent Thermal Stability in Halide Perovskites
Abigail R. Hering, Mansha Dubey, Elahe Hosseini +5
Halide perovskites exhibit unpredictable properties in response to environmental stressors, due to several composition-dependent degradation mechanisms. In this work, we apply data…
Spectroscopic signatures of biexcitons: A case study in Ruddlesden-Popper lead-halides
Katherine A. Koch, Esteban Rojas-Gatjens, Martin Gomez-Dominguez +3
Exciton-exciton interactions are fundamental to the light-emitting properties of semiconductors, influencing applications from lasers to quantum light sources. In this study, we in…
Fine-Tuning Exciton Polaron Characteristics via Lattice Engineering in 2D Hybrid Perovskites
Katherine A Koch, Martin Gomez-Dominguez, Esteban Rojas-Gatjens +4
The layered structure of 2D metal halide perovskites (MHPs) consisting of an ionic metal halide octahedral layer electronically separated by an organic cation, exhibits strong coup…
Diamine Surface Passivation and Post-Annealing Enhance Performance of Silicon-Perovskite Tandem Solar Cells
Margherita Taddei, Hannah Contreras, Hai-Nam Doan +13
We show that the use of 1,3-diaminopropane (DAP) as a chemical modifier at the perovskite/electron-transport layer (ETL) interface enhances the power conversion efficiency (PCE) of…
Super-Bandgap Electroluminescence from Cesium Lead Bromide
Justin Sculley, Jeremy Kowkabany, Diana K. LaFollette +4
Halide perovskites is a new class of semiconductors with exceptional optoelectronic properties. Among many advantages offered by halide perovskites, the bandgap energy can be tuned…