^aDepartment of Physics, Jazan University, Jizan, Saudi Arabia.

^bDepartment of Physics, Mother Teresa Women’s University, Kodaikanal,

Tamilnadu, India.

^cDepartment of Biology, Jazan University, Jizan, Saudi Arabia.

^dCenter of Nanotechnology, Indian Institute of Technology, Roorkee, India

The crystalline structure and morphology of semiconductor nanoparticles are important factors for determining their optical properties. To synthesis such nanoparticles, green synthesis is one of the most popular methods. In these green synthesis procedures, the plant extracts can be added to control the growth and particle size. In this present work, ZnO nanoflakes are synthesized in a cost-effective green synthsis method using pandamus tecctorius leaf extract. The structure and morphology of as synthesized ZnO nanoflakes have been characterized by X-ray diffraction (XRD), Raman Spectroscopy, scanning electron microscopy (SEM), photoluminescence (PL) spectrophotometry and transmission electron microscopy (TEM). The SEM and TEM images reveal the formation of ZnO nanoflakes. The hexagonal wurtzite structure has been predicted from XRD results. Strong blue absorption and the enhanced luminescence property with respect to bulk have been observed from PL studies.