Electrospun ZnO nanofibers were obtained by calcinating PVA/Zinc Acetate composite fibers at various temperatures. Atomic Force Microscopy (AFM) revealed that the ZnO fibers have diameters in the range of 100-200 nm. The fibers were characterized by FT-IR, TGA-DTA, and XRD studies. The XRD results showed that the crystal structure and the morphology of the fibers were largely dependent on the calcination temperature

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Single crystals of tris allylthiourea mercury chloride (ATMC), a semi-organic nonlinear optical material, have been grown from a low-temperature solution growth technique by slow cooling method. In the present work, we have grown ATMC crystal which is a new nonlinear optical material (NLO) having high optical quality and its second harmonic generation (SHG) efficiency is thrice that of Urea. The grown crystals have also been subjected to various characterization studies like X-ray diffraction, UV-VIS, FT-IR and TGA-DTA. X-ray powder diffraction study confirmed the crystal structure of ATMC, UV-VIS /FT-IR spectral analysis showed the crystal has good optical transmission in the entire visible region and TGA-DTA studies showed the thermal properties and complex degradation of ATMC crystal.