ALEXANDRIA, Va., May 19 -- United States Patent no. 12,635,282, issued on May 19, was assigned to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (Paris).

"Method for treating a heterojunction photovoltaic cell precursor" was invented by Arnaud Kinfack Leoga (Grenoble, France) and Jordi Veirman (Grenoble, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for treating a stack, the stack including a substrate of crystalline silicon, a first passivation layer of hydrogenated amorphous silicon, disposed on a first face of the substrate; and a first layer of n-doped amorphous silicon, disposed on the first passivation layer; the method including a step of exposing the stack to electrom...