Integrated simulation of turbulent convection, radiation and conduction during a selenization process for large-scale CIGS thin films. (October 2018)

• Record Type: Journal Article
• Authors: Yu, Taejong; Yoon, Daegeun; You, Donghyun
• Is Part Of: International journal of heat and mass transfer. Volume 125(2018)
• Page Start: 761
• Page End: 771
• Publication Date: 2018-10
• Subjects: CIGS solar cell -- Selenization process -- Multi-mode heat transfer -- Large-eddy simulation -- Finite element method; Heat -- Transmission -- Periodicals; Mass transfer -- Periodicals; Chaleur -- Transmission -- Périodiques; Transfert de masse -- Périodiques; Electronic journals; 621.4022
• DOI: 10.1016/j.ijheatmasstransfer.2018.04.133
• Languages: English
• ISSNs: 0017-9310

Abstract

Highlights: A numerical methodology for multi-mode heat transfer during a selenization process for CIGS thin films has been developed. A numerical study of thermo-fluid phenomena during the selenization process is performed. Effects of thermo-fluid phenomena on the uniformity of CIGS deposition are investigated. Abstract: A numerical methodology for simulations of multi-mode heat transfer during a selenization process for CIGS (Copper Indium Gallium Selenide) solar cell films has been developed. Turbulent fluid dynamics and convective heat transfer are simulated using a finite-volume large-eddy simulation (LES) technique while thermal conduction and radiation are predicted using finite-element methods. The computational methodology is validated for three heat transfer modes. Using the technique, a numerical study of heat transfer during the selenization process for deposition of a CIGS layer is performed to analyze the thermo-fluid phenomena occurring during the process. The present method is found to well predict temperature distribution on substrates as a function of both space and time. It is also analyzed that how turbulent fluid motions alter temperature distributions on the substrate during the selenization process.