Crucibles and coatings for silicon melting and crystallization: An in-depth review of key considerations

Abstract

This paper discusses crucial aspects related to crucibles and coatings in the scope of silicon crystallization and melting. The paper thoroughly examines different types of crucibles, highlighting both their principal challenges and advantages. Additionally, it investigates coatings in-depth, examining their roles, stability, and wetting behaviour. Crucible selection criteria, including thermal properties, melt contamination, cost, reusability, and design considerations, are also addressed. Furthermore, the paper discusses the thermodynamics of the Si-C-N-O system in the context of silicon operations at high temperatures. This review provides valuable insights for researchers and specialists in the field of silicon production and crystallization, aiding in the selection and utilization of crucibles and coatings for improved process performance.