Frenkel Excitons in Vacancy-Ordered Titanium Halide Perovskites (Cs₂TiX₆).

ABSTRACT: Low-cost, nontoxic, and earth-abundant photovoltaic materials are long-sought targets in the solar cell research community. Perovskite-inspired materials have emerged as promising candidates for this goal, with researchers employing materials design strategies including structural, dimensional, and compositional transformations to avoid the use of rare and toxic elemental constituents, while attempting to maintain high optoelectronic performance. These strategies have recently been invoked to propose Ti-based vacancy-ordered halide perovskites (A₂TiX₆; A = CH₃NH₃, Cs, Rb, or K; X = I, Br, or Cl) for photovoltaic operation, following the initial promise of Cs₂SnX₆ compounds. Theoretical investigations of these materials, howe

SUBMITTER: Kavanagh SR 

PROVIDER: S-EPMC9720747 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature