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[1, 2009] 

Journal of Electrical Engineering, Vol 60, 1 (2009) 54-56

PULSED-LASER ANNEALING EFFECT ON STRUCTURAL AND ELECTRICAL CHARACTERISTICS OF CdS LAYERS

Peter Shindov - Rumen Kakanakov - Svetlana Kaneva - Theodora Anastasova

   The effect of pulsed-laser annealing on the parameters of CdS thin layers in the medium of oxygen was studied. The CdS thin layers were deposited by spray pyrolysis and surface treatment by nanosecond pulses of a XeCl-laser. The changes in the layers were characterized by SEM, XRD and XPS. The results showed that a change in the morphology of the surface occurred; a by-surface layer consisting of CdO with high transparency and conductivity is formed as a consequence of oxidation of CdS. These results are discussed in the context of window layers in solar cells.

Keywords: CdS, spray pyrolysis, laser annealing, CdO, SEM, XRD, XPS


[full-paper]


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