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39 papers · 1 filter
Energy level alignment of vacancy-ordered halide double perovskites
Ibrahim Buba Garba, George Volonakis
Vacancy-ordered double perovskites have emerged as lead-free alternatives, offering remarkable stability and compositional tunability for optoelectronic applications. In this study…
Emergent 3D Fermiology and Magnetism in an Intercalated Van der Waals System
Luigi Camerano, Emanuel A. Martínez, Victor Porée +16
Intercalation of magnetic atoms into van der Waals materials provides a versatile platform for tailoring unconventional magnetic properties. However, its impact on electronic dimen…
Roadmap for electronic structure, anharmonicity, and electron-phonon calculations in locally disordered inorganic and hybrid halide perovskites
Marios Zacharias, George Volonakis, Laurent Pedesseau +3
The role of data in modern materials science becomes more valuable and accurate when effects such as electron-phonon coupling and anharmonicity are included, providing a more reali…
Electron-phonon couplings in polymorphous crystals
Marios Zacharias, George Volonakis, Laurent Pedesseau +3
Positional polymorphism in solids refers to locally disordered unit cells that, on average, reproduce the high-symmetry structures observed in diffraction experiments. Standard the…
Empirical approaches to Fröhlich excitonic polarons in polar semiconductors
Jacky Even, Simon Thebaud, Aseem Rajan Kshirsagar +4
The excitonic correlation between electron and hole and these carriers' interactions with underlying crystal lattice govern the opto-electronic response of semiconductors. The latt…
Two-dimensional perovskites with maximum symmetry enable exciton diffusion length exceeding 2 micrometers
Jin Hou, Jared Fletcher, Siedah J. Hall +15
Realizing semiconductors with high symmetry of their crystallographic structures has been a virtue of inorganic materials and has resulted in novel physical behaviors. In contrast,…