METHOD OF MANUFACTURING CRYSTALLINE SILICON SOLAR CELLS USING CO DIFFUSION OF BORON AND PHOSPHORUS

摘要

The present invention provides a method of manufacturing a crystalline silicon solar cell, subsequently comprising: - providing a crystalline silicon substrate having a first side and a second side opposite the first side; - pre-diffusing Phosphorus into a first side of the substrate to render a Phosphorus diffused layer having an initial depth; - blocking the first side of the substrate; - exposing a second side of the substrate to a Boron diffusion source; - heating the substrate for a certain period of time and to a certain temperature so as to diffuse Boron into the second side of the substrate and to simultaneously diffuse the Phosphorus further into the substrate.