D. Pfisterer

TL;DR: In this article, the absorption and emission properties of the neutral oxygen vacancy in ZnO were investigated using temperature-dependent photoluminescence (PL) experiments, and the Mollwo-Ivey relation for the position of the F-centre absorption as a function of the anion-cation distance was applied to find that the oxygen vacancies fit perfectly in the line given by MgO, CaO, SrO and BaO.

TL;DR: In this paper, deep level transient spectroscopy (DLTS) results suggest a correlation between the broad unstructured emission at 2.45 eV (green band) and a donor level 530 eV below the conduction band, it is attributed to the VO 0/++ transition.

TL;DR: In this paper, the optical properties of excitonic recombinations in bulk ZnO are investigated by photoluminescence (PL) measurements, where the neutral donor bound excitons are positioned at 3.364, 3.362 and 3.361 eV.

TL;DR: In this paper, the authors investigated cobalt doped ZnO nanoparticles prepared by using wet chemical methods and characterized the electronic structure as well as the optical and magnetic properties of Co2+ nanoparticles.

TL;DR: In this article, the generation of defect center E4 subsequent to annealing in different ambients was monitored by conducting electron irradiations with energies, where either both the Zn- and O-sublattice are damaged or according to [1] only the zn-Lattice, a chemical assignment to the defect centers E4 and E3 could be accomplished.