The IUP Journal of Mechanical Engineering
Simulation of Particle Growth in Thin Films

Article Details
Pub. Date : Feb, 2023
Product Name : The IUP Journal of Marketing Management
Product Type : Article
Product Code : IJMM050223
Author Name : Rahul Basu
Availability : YES
Subject/Domain : Marketing
Download Format : PDF Format
No. of Pages : 12

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Abstract

The nucleation of particles in a thin substrate is of importance in many areas of deposition technology. Disperse particles require tuning of parameters to avoid continuous growth and agglomerating. Thin film nucleation can be modeled with spherical or cylindrical particle morphology. Heat transfer coefficients and the "under cooling" or thermal driving force depend on the boundary and initial conditions. A stable moving interface can be expressed as a function of time and radius and hence the radial growth can be expressed as a power of time and other parameters. A simulation using Wolfram with the equations of heat and mass transfer is used to obtain a quasi-steady-state solution result, where the growth is stabilized until the desired size and distribution are arrived at. The prediction of this state is important in formation of various structures like in-situ growth for solar cells, memories and integrated circuits.


Introduction

The technology of thin films has evolved from the days of sputtering and coating small areas to fields such as artificial diamond growth, solar fabrics and stealth coatings for missiles and aircraft. Amorphous metals and glasses possess very interesting properties which also find use in consumer products like golf and tennis equipment and solar cells. In the present work, the nucleation and growth of particles in a thin film are developed. Various other methods have been developed to grow thin films, such as evaporation, molecular beam epitaxy and chemical bath (Koryakin et al., 2018; Meyer et al., 2019; and Najm et al., 2022). In the case of evaporation, it was found that both cylindrical and spherical particles appeared. An earlier outline of the various methods for producing thin films was given by Pashley (1965). There was no way to predict or control the morphology of the growing particles in the film.


Keywords

Deposition, Nucleation, Thin film, Moving boundary