METHOD FOR FABRICATING BACK CONTACT SOLAR CELL

摘要

PURPOSE: A method for manufacturing a rear electrode type solar cell is provided to minimize the number of processes by easily forming a rear surface field through one ion implantation process and one thermal diffusion process. CONSTITUTION: A first conductive crystalline silicon substrate is prepared(S201). An uneven part is formed on the surface of the first conductive crystalline silicon substrate through a texturing process(S202). A thermal diffusion control layer is formed on the front, rear, and side of the substrate(S203). A p type impurity area is formed on the rear of the substrate by implanting a p type impurity ion(S204). A thermal diffusion control layer is patterned(S205). A p+ emitter area is formed by activating the p type impurity area(S206).