Back contact useful for a chalcopyrite thin-film solar cell, comprises chromium nitride, where chromium nitride layer is deposited directly on the substrate and has an under-stoichiometric composition

摘要

Back contact (5) of a chalcopyrite thin-film solar cell, comprises chromium nitride, where chromium nitride layer is deposited directly on the substrate and has an under-stoichiometric composition. An independent claim is also included for manufacturing a back contact for chalcopyrite thin-film solar cells containing under-stoichiometric chromium nitride, comprising carrying out the deposition by plasma-assisted electron beam evaporation in a reactive atmosphere of nitrogen.