Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Analysis of light scattering by laser-textured AZO films for PV thin-film solar cells
Year:2015
Research Areas
  • Engineering,
  • Mechanical engineering
Information
Abstract
In the thin-film photovoltaic industry, to achieve a high light scattering in one or more of the cell interfaces is one of the strategies that allow an enhancement of light absorption inside the cell and, therefore, a better device behavior and efficiency. Although chemical etching is the standard method to texture surfaces for that scattering improvement, laser light has shown as a new way for texturizing different materials, maintaining a good control of the final topography with a unique, clean, and quite precise process. In this work AZO films with different texture parameters are fabricated. The typical parameters used to characterize them, as the root mean square roughness or the haze factor, are discussed and, for deeper understanding of the scattering mechanisms, the light behavior in the films is simulated using a finite element method code. This method gives information about the light intensity in each point of the system, allowing the precise characterization of the scattering behavior near the film surface, and it can be used as well to calculate a simulated haze factor that can be compared with experimental measurements. A discussion of the validation of the numerical code, based in a comprehensive comparison with experimental data is included.
International
Si
Congress
E-MRS Spring Meeting 2015
970
Place
Lille (Francia)
Reviewers
Si
ISBN/ISSN
CDP08UPM
Start Date
11/05/2015
End Date
15/05/2015
From page
1
To page
1
Abstracts http://www.european-mrs.com/meetings/2015-spring/2015-spring-symposia-program
Participants
  • Autor: David Canteli (UPM)
  • Autor: José Manuel López (UPM)
  • Autor: Sara Lauzurica Santiago (UPM)
  • Autor: Marta Lluscà (Universidad de Barcelona)
  • Autor: María Isabel Sánchez-Aniorte (UPM)
  • Autor: Joan Bertomeu (Universidad de Barcelona)
  • Autor: Miguel Morales Furio (UPM)
  • 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
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