Photoionization spectra of silver dimers adsorbed on the surface of a ZnS single crystal

We use the photostimulated luminescence flash method to measure photoionization spectra of Ag₂ clusters adsorbed on the surface of a ZnS single crystal. Adsorbed dimers of silver are prepared by treatment of the surface of a ZnS single crystal in high vacuum with a beam of molecular Ag ₂ ⁺ ions followed by their neutralization. We show that the adsorbed dimers create two types of electron traps at energy levels 1.63 and 1.82 eV below the bottom of the conduction band. __________ Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 74, No. 4, pp. 545–547, July–August, 2007.