METHOD FOR MANUFACTURING IBC SOLAR CELL AND IBC SOLAR CELL

摘要

A method for manufacturing an IBC solar cell and an IBC solar cell. In the method, first conductive finger regions are formed by using a laser ablation process or a laser etching process, second conductive finger regions are formed by using a screen printing process, and multiple steps of screen printing of a barrier layer, etching, secondary screen printing of the barrier layer, diffusion, glass layer removing, cleaning and the like are not needed, so that the method for manufacturing an IBC solar cell is simplified, the production efficiency is improved, and the production cost is reduced. In addition, the second conductive finger regions of the provided IBC solar cell are combined with a silicon wafer substrate to form an emitter of the cell, and boron does not need to be doped into the emitter, so that the boron-oxygen recombination action at the second conductive finger regions is relatively weak, the light-induced degradation action is smaller, and therefore, the conversion efficiency of the cell is higher.