Ag2CdI4: Synthesis, characterization and investigation the strain lattice and grain size

• Ag2CdI4 nanostructures have been synthesized by low temperature solid state method.
• The reaction has been optimized for purity, morphology, and grain size and strain lattice.
• Effective parameters have been optimized such as time, temperature and mole ratio.

In this work the Ag2CdI4 nanostructures have been synthesized via a solid state reaction from reaction of AgI and CdI2 as precursors. The effect of the mole ratio of precursors, time and temperature of reaction has been optimized to achieve the best product on morphology and purity. Nanostructures have been characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman (FT-IR) techniques, X-ray energy dispersive spectroscopy (EDS) and Ultraviolet spectroscopy (UVvis). The XRD patterns of nanostructures have been used to estimate the grain sizes and strain lattice. Grain size of nanostructures is in range of 5–17 nm and the strain of lattice is changed in range of 0.0024–0.014. The band gap of these nanostructures has been estimated by DRS spectrum about 5.4 eV. Raman spectroscopy has been confirmed the XRD results and show that the Ag2CdI4 nanostructures have been synthesized. SEM and TEM images have been used for investigation of morphology of product. Results show that the best morphology and purity have been achieved in 12 h and 200 °C in 1:1 mol ratio of precursors.

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