Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Reduction of front-metallization grid shading in concentrator cells through laser micro-grooved cover glass
Year:2015
Research Areas
  • Solar cells
Information
Abstract
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 (ISC) 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.
International
Si
Congress
11th International Conference on Concentrator Photovoltaic Systems - CPV-11
960
Place
Aix-les-Bains, France
Reviewers
Si
ISBN/ISSN
978-0-7354-1326-9
http://dx.doi.org/10.1063/1.4931535
Start Date
13/04/2015
End Date
15/04/2015
From page
600011
To page
600018
AIP Conference Proceedings Vol. 1679
Participants
  • Autor: Pablo Garcia-Linares Fontes (UPM)
  • Autor: P. Voarino
  • Autor: Cesar Dominguez Dominguez (UPM)
  • Autor: O. Dellea
  • Autor: P. Besson
  • Autor: C. Weik
  • Autor: P. Fugier
  • Autor: M. Baudrit
Research Group, Departaments and Institutes related
  • Creador: Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Ingeniería Eléctrica, Electrónica Automática y Física Aplicada
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