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Nanocrystalline pyrite (FeS 2 ) films were achieved by the sol–gel dip-coating process and sulfurization treatment. The microstructural, optical and electrical characteristics were investigated and the effect of sulfurization time on film properties was discussed. The XRD spectra show that FeS 2 film can be obtained for 1h sulfurization and no other phase appears. The morphology of...
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