RT Conference Proceedings
SR 00
ID 10.1063/1.4931535
A1 García-Linares Fontes, Pablo
A1 Voarino, Philippe
A1 Domínguez Domínguez, César
A1 Dellea, Olivier
A1 Besson, Pierre
A1 Fugier, Pascal
A1 Baudrit, Mathieu
T1 Reduction of front-metallization grid shading in concentrator cells through laser micro-grooved cover glass
YR 2015
FD 13/04/2015–15/04/ 2015
SP 060001
OP 1-060001-8
K1 Electrodes; Amorphous metals; Laser glasses; Surface patterning; Irradiance
AB Concentrator solar cell front-grid metallizations are designed so that the trade-off between series resistance and shading factor (SF) is optimized for a particular irradiance. High concentrator photovoltaics (CPV) typically requires a metallic electrode pattern that covers up to 10% of the cell surface. The shading effect produced by this front electrode results in a significant reduction in short-circuit current (I SC) and hence, in a significant efficiency loss. In this work we present a cover glass (originally meant to protect the cell surface) that is laser-grooved with a micrometric pattern that redirects the incident solar light towards interfinger regions and away from the metallic electrodes, where they would be wasted in terms of photovoltaic generation. Quantum efficiency (QE) and current (I)-voltage (V) characterization under concentration validate the proof-of-concept, showing great potential for CPV applications
T2 11th International Conference on Concentrator Photovoltaic Systems
ED Aix-les-Bains, France
SN 978-0-7354-1326-9
AV Published
LK http://oa.upm.es/40648/
UL http://scitation.aip.org/content/aip/proceeding/aipcp/10.1063/1.4931535