Journal ArticleOptical properties of <math><mrow><mi>Cs</mi><msub><mi>Cu</mi><mn>2</mn></msub><msub><mi>X</mi><mn>3</mn></msub></mrow></math> <math><mrow><mo>(</mo><mi>X</mi><mo>=</mo><mi>Cl</mi><mo>,</mo><mo> </mo><mi>Br</mi><mo>,</mo><mo> </mo><mi>and</mi><mo> </mo><mi mathvariant='normal'>I</mi><mo>)</mo></mrow></math> : A comparative study between hybrid time-dependent density-functional theory and the Bethe-Salpeter equationSun, Jiuyu; Ullrich, Carsten A.null2020-09-0110275095Physical Review Materials492475-9953https://doi.org/10.1103/PhysRevMaterials.4.0954021810922National Science Foundation