Selective removal and contacting of thin film solar cells

Details Selective removal and contacting of thin film solar cells Selective removal and contacting of thin film solar cells

H - Electricity

01

L

H01L 31/18 (2006.01) H01L 31/032 (2006.01)

Patent

CA 2731288

The present invention provides a method for manufacturing of a thin film solar cell device comprising a CIGS based thin film solar cell module (17). Edge deletion by selective removal of a multilayer structure (13) that comprises at least a front contact (15) and a CIGS layer (7) to expose the back contact (5) in at least a peripheral area (22) in the circumferential re-gion (21) of the module (17) adjacent to a first longitudinal thin film solar cell segment (18) allows for contacting of the module (17) by attaching at least a first contacting means (27) to the back contact (5). Preferably a blasting operation using simultaneous supply of blasting agents and gathering of debris in a blasting chamber (32) arranged on the thin film solar cell module (17) is used for the selective removal.

La présente invention concerne un procédé de fabrication dun dispositif de cellule solaire à film mince comprenant un module de cellule solaire à film mince à base de CIGS (17). La suppression de bord par lélimination sélective dune structure multicouche (13) qui comprend au moins un contact avant (15) et une couche de CIGS (7) afin dexposer le contact arrière (5) dans au moins une zone périphérique (22) de la région de circonférence (21) du module (17) adjacente à un premier segment longitudinal de cellule solaire à film mince (18), permet la mise en contact du module (17) par la fixation dau moins un premier moyen de contact (27) au contact arrière (5). De préférence, une opération de décapage par projection de particules avec acheminement des agents décapants et collecte simultanés des débris dans une chambre de décapage (32) disposée sur le module de cellule solaire à film mince (17) est utilisée pour lélimination sélective.

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