A METHOD OF MANUFACTERING A SOLAR CELL AND A SOLAR CELL

摘要

In the solar cell manufacture a diffusion resistance layer (22A) of electrically insulating material is provided onto the first side (11) of a semiconductor substrate (10), and patterned in accordance with a predefined pattern of selective emitter regions (30) to be applied into the semiconductor substrate; dopant species are provided into the semiconductor substrate (10) to form the selective emitter regions (30) comprising p-type charge carriers. Subsequently, selective dopant diffusion regions (31) are created through controlled diffusion of further dopant species through the diffusion resistance layer (22a), the selective emitter regions (30) and the diffusion regions (31) jointly operating as emitter. The diffusion resistance layer (22) will also extend into any through-hole (20) in the substrate(10).