Modern parameter-free methods to treat single-and two-particle electronic excitations are
applied to compute the band structure and the lowest optical transitions of wurtzite ZnO
under biaxial strain. The calculations are based on density functional theory with a spatially
nonlocal exchange and correlation functional and include spin-orbit interaction.
Quasiparticle shifts and excitonic effects are computed. In addition to the band parameters,
also their dependence on biaxial strain and the ordering of the A⁠, B⁠, and C excitons are …