Optical and structural properties of PbI2 thin films
Lead iodide thin films were fabricated using the spray pyrolysis technique. Milli-Q water and N.N-dimethylformamide were used as solvents under varying deposition conditions. Films as thick as 60 μm were obtained. The optical and structural properties of the samples were investigated using Photoluminescence, Raman scattering, X-ray diffraction, and Scanning electron microscopy. In addition, the study included also the electronic properties which were investigated by measuring the dark conductivity as a function of temperature. The deposition technique seems to be promising for the development of thick films to be used in medical imaging.
KeywordsSpray Pyrolysis PbI2 High Deposition Temperature Polycrystalline Thin Film Lead Iodide
This work was supported by CNPq (479316/2006-6), Capes and Fapesp (01/08221-9). We thank C. F. O. Graeff, C. A. Brunello, F. likawa and L. A. Montoro for experimental help.
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