Growth, structural, optical, and photo conductivity studies of potassium tetra fluoro antimonate crystal

Potassium Tetra Fluoro Antimonate Crystal (KSbF4) has been synthesized using slow evaporation technique. The crystalline nature of the grown crystal was confirmed using powder X-ray diffraction technique. Single crystal XRD measurement reveals that the crystal belongs to orthorhombic system with space group Pmmn. The optical transmission spectra reveals the transparency of the crystal in the visible region. It is noticed that the UV cut off wavelength for the grown crystal is 285 nm. The optical band gap energy has been estimated as 4.84 eV using Tauc's plot. In the UV region, optical conductivity has very high values of the order of 1013 S−1 and in the visible region it is of the order of 108 S−1. The KSbF4 crystal shows negative photo conductivity.