Method of manufacturing a solar cell with local back contacts

The invention relates to the manufacturing process of a solar cell (1) with back contact and passivated emitter, comprising a dielectric stack (10) of at least two layers consisting of at least a first dielectric layer (11) made of AlOx in contact with a p-type silicon layer (3), and a second dielectric layer (13) deposited on the first dielectric layer (11). Besides, the method of manufacturing comprising a formation step of at least one partial opening (15) preferably by laser ablation into the dielectric stack (10), sparing at least partially the aforementioned first dielectric layer.

Octrooi-publicatienummer: EP2764553

Jaar aanvraag: 2019

Jaar toekenning: 2019

Jaar van publicatie: 2019

Status: Toegewezen

Technologiedomeinen: Semiconductoren, Machinegereedschappen

Gevalideerd voor IOF-sleutel: Ja

Toegewezen aan: Associatie KULeuven