THE DESIGN OF ELECTROSPRAY PYROLYSIS EQUIPMENT FOR NANO MATERIALS THIN FILM FABRICATION

• Main Author: RAKA PUTRANDA (NIM : 13311094), MUHAMMAD
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/23304
• Institution: Institut Teknologi Bandung

Recently, researches in the field of materials engineering is dominated by engineering material associated with nanometer-scale material, ranging from the manufacture of nano-particles, the development of synthesis methods and their utilization. One method used to produce nanoscale material is a electrospray pyrolysis. Electrospray pyrolysis method using high voltage electric field as a substitute for high pressure carrier gas to generate very small droplets (nebula). The utilization of electric field allows bursts of the solution will be more focused because it is limited by the electric field between the nozzle to the substrate. In designing of tool of electrospray pyrolysis there are 3 main components, they are heater, high voltage generator circuit, and the nozzle. The heating system is created, can heat the substrate up to 600 0C, so it can be used to create a thin layer of ZnO. High voltage circuits created using flyback and can produce an output voltage of 18.2 kV. the syringe must have a size above 27G is used as a nozzle to produce bursts that are evently well and the minimum distance between the substrate with the nozzles is 3.5 cm so that the electrons jump does not occur. The equipment system of electrospray pirolysis are made have been attempted to produce a thin layer of ZnO uses ZnNO3 solution. SEM results indicate the equipment which made, can produce a layer of below 100 nm, but the XRD results show that the phase is formed instead of ZnO but Zn.