Recovery of Silicon Wafers from End-of-Life Silicon-Based Solar Cells

Abstract Silicon wafer is the main component of silicon-based solar cells which carries around sixty percent cell cost. manufacturing most energy-consumed process compared to other materials, thus, discovering free silicon recourses saves environment and increases sustainable development. This work extracted wafers from end-of-life (EoL) in laboratory were already forgone after those have been studied. The experiment has started by submerging full into solution HNO 3 , then concentrated H PO 4 followed cleaning NaOH DI water. After etching process, pure obtained with similar properties origin before fabricating. investigated using SEM EDS characterizations found that they potential as a semiconductor are worth trying optoelectronic applications.