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We present codiffused bifacial n-type (CoBiN) solar cells on 156 mm Czochralski grown (Cz) Si wafers with peak efficiencies of 19.6 % fabricated using a lean industrial process. Simultaneous diffusion of phosphorus back surface field (BSF) and boron emitter in one single tube furnace process, the so called codiffusion, leads to a significant process simplification. Manipulation of the borosilicate...
We present a simple industrially upscaleable process for the fabrication of bifacial n-type silicon solar cells. A process simplification is achieved by simultaneous diffusion of phosphorus back surface field (BSF) and boron emitter in one single high temperature process, the so called co-diffusion. A borosilicate glass (BSG) layer, deposited by atmospheric pressure chemical vapor deposition (APCVD)...
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