Abstract
Nd-doped iron pyrite thin films have been obtained for the first time by flash evaporation of natural pyrite with powder on glass substrates. Thermal treatments in a sulphur atmosphere were performed at different temperatures in order to improve the crystal quality of the films. The effects of annealing temperature on the structural, electrical and optical properties of the Nd-doped films have been studied and compared to those of undoped pyrite films prepared and treated by the same methods. Thermal treatment induces changes in the Nd stage in the films which affect the structural and electrical parameters. The presence of a segregated phase is observed for high annealing temperature due to Nd diffusion in the pyrite lattice.
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