Experimental and Simulation Study on Nanosonic Particles and Nanomaterials of ZnS and Their Nano-Schottky Diodes

Monte Carlo simulation is applied for the first time to understand the growth mechanism in ZnS nanosonic particles. Particles are considered as hard disks interacting through a square-well potential. The ZnS cluster growth observed in nanosonic and nanoparticles is captured by this model. The estimated binding energy in nanosonic particles is approximately 10 times lesser than in nanoparticles. Role of acoustic cavitations and magnetic agitations shows compact and uniform nanocrystalline ZnS thin films with a transparent window layer for photovoltaic and biosensor application. The approach of distortion from zinc blende to hexagonal closed packed is observed in X-ray diffraction. A small uniform granular morphology and grain size 50-100 nm are observed in scanning electron microscopy. The emission spectra excited at wavelength 270 nm show a strong emission peak in the range of 330-335 nm. Transmission electron microscopy showed a particle size of 53 and 100 nm for ultrasonic chemical bath deposition and chemical bath deposition. The ultrasonic chemical bath deposition method for nanosonic particles is more advantageous than chemical bath deposition for nanoparticles.