Study of Photo response of ZnO Nanoparticles Prepared by Hydrothermal Method

Semiconductors with dimensions in the nanometer range are turns out to be the important field of studies due to their long range of applications. Optical properties of ZnO are of great interest for application in optoelectronics, photovoltaics and biological sensing. Various chemical synthetic methods have been developed to prepare such nanoparticles ZnO nanoparticles are synthesized by hydrothermal method. In this method zinc acetate salt is used with surfactant to form the ZnO precipitates. The obtained precipitates are vacuum dried at room temperature. The prepared sample is characterized by XRD techniques and characteristics peaks are obtained. Furthermore, The FT-IR and Raman studies confirm the formation of Zno nanoparticles. The particles obtained are of the orders of 20 nm. Furthermore, The prepared sample tested for photo response measurement and ZnO sample has photo response of 5% at 30 Mw/cm2.