Patent ID: 11075316

Abstract:
A method of producing a bifacial photovoltaic cell is disclosed herein, the method comprising: a) forming an n-dopant-containing layer on a first surface of a semiconductor substrate; b) forming a boron-containing layer on a second surface of the substrate by sputtering boron and/or by boron ion implantation; and c) effecting diffusion of the n-dopant and boron into the substrate, to dope the first surface with the n-dopant and the second surface with the boron. Further disclosed herein are bifacial photovoltaic cells, as well as photovoltaic modules, power plants and electric devices comprising said photovoltaic cells, comprising a semiconductor substrate, an n+ layer on a first surface thereof and a boron-containing p+ layer on a second surface thereof, wherein a variability of boron concentration in the p+ layer is no more than 5%.