Design Optimization of Graphite Retort and Predictive Modeling of Optical Properties in Multi-crystalline Silicon for Solar Cell Applications. - Raman, Mariyappan; Arun, S.; Srinivasan, M.; Thamotharan, Keerthivasan; Sree, R. M. Kaviya; Krishnamurthy, Vallidevi; Usami, Noritaka (Journal of Electronic Materials, 2026)