Synthesis of ZnO Nanocones and Nanoribbens by Vapour Phase Transport Method

Pages:71-73
Himanshu and Vidyanand (
Central Electronics Engineering Research Institute of India (CEERI), Pilani, Rajasthan and National Physical Laboratory, (NPL) New Delhi)

Synthesis of ZnO nanocones on ITO coated glass substrates has been achieved by a simple method of Vapour phase transport method ZnO powders mixed with graphite. Metallic catalysts and vacuum conditions are not necessary. Experiments with different process parameters were done to find the optimum conditions for the formation of ZnO nanocones. Zn and its suboxide plays a crucial role for the nucleation of ZnO nanostructures. The synthesized ZnO nanocones consist of single crystalline structure. As determined by XRD, the growth direction of ZnO nanocones is [001], which has no orientation relationship with the substrate. A strong room-temperature photoluminescence in ZnO nanocones has been demonstrated.