Photovoltaic cell and process of manufacture

A photovoltaic material comprising:

• a photovoltaic semiconductor material with one or more photovoltaic structures at one or more surfaces, whereby the semiconductor material with the one or more photovoltaic structures is created by performing the steps of:
• exposing an n-type silicon wafer to an energy source, whereby the whereby the energy source causes heating of a portion of the n-type silicon wafer;
• and
• ceasing exposure of the n-type silicon wafer to an energy source, whereby the exposing step and the ceasing step cause the single-piece semiconductor material to transform into the photovoltaic semiconductor material with one or more photovoltaic structures at one or more surfaces, the one or more photovoltaic structures having a high resistivity layer therein;
• forming a protective film of SiC layer on a bottom surface of to prevent the bottom surface of the single-piece semiconductor material from forming into a high-resistivity layer upon heating;
• and
• placing a metal bottom electrode over the SiC layer, whereby the metal-to-semiconductor interface between the metal bottom electrode and the n-type silicon wafer forms an ohmic contact.