EP 2976791 A1 20160127 - BACK CONTACT SOLAR CELL AND METHOD FOR THE PRODUCATION THEREOF
Title (en)
BACK CONTACT SOLAR CELL AND METHOD FOR THE PRODUCATION THEREOF
Title (de)
RÜCKSEITENKONTAKTIERTES HALBLEITERBAUELEMENT UND VERFAHREN ZU DESSEN HERSTELLUNG
Title (fr)
CELLULE SOLAIRE AVEC MISE EN CONTACT PAR LA FACE ARRIÈRE ET PROCÉDÉ DE FABRICATION DE LADITE CELLULE SOLAIRE
Publication
Application
Priority
- DE 102013204828 A 20130319
- EP 2014055551 W 20140319
Abstract (en)
[origin: WO2014147151A1] The invention relates to a method for the back-surface contacting of solar cells having a substrate, which substrate is substantially composed of silicon, wherein an aluminum layer (2) is applied to the back surface of the substrate at least in some regions, an aluminum layer (2a) doped with silicon and having a eutectic of silicon and aluminum and a silicon layer (2b) doped with aluminum as a back surface field (BSF) thereby being formed. The porosity of the aluminum layer is reduced simultaneously with the bonded connection (6) of the solar cell to an electrical conductor (5). The invention further relates to a back contact solar cell that can be produced by means of said method.
IPC 8 full level
H01L 31/05 (2006.01); H01L 31/0224 (2006.01)
CPC (source: EP)
B23K 1/06 (2013.01); H01L 31/022425 (2013.01); H01L 31/0512 (2013.01); B23K 2103/56 (2018.07); H01L 2924/0002 (2013.01); Y02E 10/50 (2013.01)
Citation (search report)
See references of WO 2014147151A1
Citation (examination)
- WO 2013032336 A1 20130307 - STICHTING ENERGIE [NL], et al
- H V CAMPE ET AL: "DIRECT TIN-COATING OF THE ALUMINUM REAR CONTACT BT ULTRASONIC SOLDERING", 27TH EUROPEAN PHOTOVOLTAIC SOLAR ENERGY CONFERENCE, PROCEEDINGS OF THE 27TH INTERNATIONAL CONFERENCE, WIP-RENEWABLE ENERGIES, 31 October 2012 (2012-10-31), pages 1150 - 1153, XP040633870, ISBN: 978-3-936338-28-7
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102013204828 A1 20140925; CN 105144409 A 20151209; EP 2976791 A1 20160127; WO 2014147151 A1 20140925; WO 2014147151 A8 20141218
DOCDB simple family (application)
DE 102013204828 A 20130319; CN 201480016281 A 20140319; EP 14712259 A 20140319; EP 2014055551 W 20140319