Synthesis and characterization of ZnO nanoparticles for perovskites solar cell

In the present work, we synthesis Zinc oxide (ZnO) nanoparticles (np's) by wet chemical method and studied their structural, optical and IR characterization. The crystallization and average particle size have been investigated by X-ray diffraction (XRD) and revealed that ZnO np's crystallized in single phase hexagonal structure. The study of Scanning electron microscope (SEM) exposed the various morphological changes of the prepared sample. The optical band gap (3.37 eV) of the sample has been analyzed using UV visible spectroscopy, which is very good agreement to the theoretical results. Fourier transform infrared (FTIR) spectroscopy is used to obtain infrared spectrum of absorption or emission, which collects the high spectral resolution data over a wide spectral range. Here, the main motive to synthesis ZnO np's is for the use in Perovskite solar cells as an Electron Transport Layer (ETL). (author)