STAMOV, I.G.; TKACHENKO, D.V.; SYRBU, N.N.
(Institutul de Fizică Aplicată, 2016)
The Wannier - Mott excitons have been discovered in absorption spectra of β-ZnP2 crystals and examined in detail. Due to low symmetry of crystals and, also, crystal field splitting the Wannier - Mott excitons are observed ...