Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Light absorption enhancement of crystalline silicon wafers by direct laser texturing for heterojunction solar cells
Year:2017
Research Areas
  • Engineering,
  • Mechanical engineering,
  • Laser devices,
  • Photovoltaic generation
Information
Abstract
Light trapping strategies that lead to an enhancement of the light absorbed by a device is a direct way to improve solar cells behavior. Light trapping strategies that lead to an enhancement of the light absorbed by a device is a direct way to improve solar cells behavior. The texturization of one or more surfaces is an industry standard in solar cells manufacturing. In the particular case of crystalline- and multi-crystalline-silicon wafers, this is usually achieved by means of a chemical etching. The control of the final morphology is limited though, especially in multi-crystalline silicon wafers where the etching rate in basic solutions is dependent on the crystal orientation of the silicon grains. The use of laser sources has opened the door to new texturing techniques leading to different kind of morphologies. An example is the use of laser pulses together with chemical etching or the texturization by direct laser scribing [1, 2]. In this work, we study the changes in the incident light reflection of silicon samples when they are textured by direct laser beams and compare them with similar samples textured by standard chemical etching and optimized for its use in silicon heterojunction solar cells.
International
Si
Congress
CLEO/Europe-EQEC 2017 2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference
970
Place
Munich, Alemania
Reviewers
Si
ISBN/ISSN
978-1-5090-6736-7
Start Date
25/06/2017
End Date
29/06/2017
From page
1
To page
1
2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference
Participants
  • Autor: D. Canteli (UPM)
  • Autor: A. Marquez (UPM)
  • Autor: R. Barrio (CIEMAT)
  • Autor: I. Torres (CIEMAT)
  • Autor: Sara Lauzurica Santiago (UPM)
  • Autor: J. Gandía (CIEMAT)
  • Autor: Carlos Luis Molpeceres Alvarez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Manufactura Avanzada con Láser
  • Centro o Instituto I+D+i: Centro Laser
  • Departamento: Física Aplicada e Ingeniería de Materiales
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)