Growth and Characterization of ZnO Nanotetrapod for the Biosensor Application

Abstract

High chemical stability, low threshold intensity, wide band gap (3.37eV) and large excitation binding energy (60meV)
make ZnO an excellent candidate for fabrication of electronic and optoelectronics devices which seek potential use in
biomedical applications. While the applications of nanowires and straight nanorods are straightforward, more complex
shapes are also of interest both for fundamental studies and practical applications [2]. ZnO nanotetrapods were obtained by
carbo-thermal reduction of ZnO. The structure and phase present were verified by X-ray diffraction and X-ray photoelectron
spectroscopy. The morphology and microstructure of the product were studied by scanning electron microscopy and study
was extended for gas sensing.