Growth and characterization of strontium tartrate tetrahydrate and zinc doped strontium tartrate tetrahydrate crystal

• Published in: Chemical Data Collections Vol. 45; p. 101016
• Main Authors: Mule, P.K., Shah, N.M.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.06.2023
• Subjects: Dielectric; DSC; FTIR; PXRD; TGA; Dielectric; DSC; FTIR; PXRD; TGA
• ISSN: 2405-8300; 2405-8300
• DOI: 10.1016/j.cdc.2023.101016

•Optically transparent strontium tartrate tetrahydrate (STT) & zinc doped strontium tartrate tetrahydrate (ZSTT) crystals were grown using silica gel method.•Orthorhombic structure of grown crystals (STT and ZSTT) was identified by PXRD.•UV–Vis transmission spectra of STT crystal and ZSTT crystal were carried out and cut-off wavelengths were found to be 234 nm and 241 nm, respectively.•From UV–Vis transmission spectra energy band gap was estimated and found to be 5.6413 eV and 5.5027 eVrespectively.•Dielectric study was carried out for STT and ZSTT crystals. Crystals of strontium tartrate tetrahydrate (STT) and Zinc (Zn2+) doped strontium tartrate tetrahydrate (ZSTT) are grown using the silica gel technique. Crystals are characterized using Powder X-Ray Diffraction (PXRD), Scanning Electron Microscopy (SEM), and Fourier Transform Infrared spectroscopy (FTIR). PXRD results suggest that both STT and ZSTT crystals have an orthorhombic structure with space group P212121 containing 4 molecules per unit cell. In FTIR spectrograph major vibrational peaks of OH, CH, C=O are observed in STT and ZSTT crystals. Thermogravimetry (TGA) and Differential Scanning Calorimetry (DSC) studies confirm the thermal stability of as-grown crystals. The transmission spectra of STT and ZSTT crystals are recorded in the wavelength range of 190–1100 nm and are used to estimate the band gap. The doping of Zn2+ ions decrease the energy band gap from 5.64 eV to 5.50 eV. At room temperature, the frequency-dependent dielectric measurement of as grown crystals are studied.