Influence of NH3 concentration and annealing in the properties of chemicalbath deposited ZnS films

ZnS films were grown onto glass substrates by chemical bath deposition (CBD ) technique. Results on structural, optical and electrical properties of th e layers as a function of NH3 concentration and subsequent H-2 annealing ar e reported. X-ray diffraction patterns indicated that the annealed samples are microcrystalline with a sphalerite structure and with a defined peak pa ttern not reported before for this type of growth method. A band gap shift effect is observed as a function of growth parameters and annealing. Resist ivity measurements show slightly lower values than the ones reported in the literature. (C) 1999 Elsevier Science S.A. All rights reserved.