New laser-based approaches to improve the passivation and rear contact quality in high effiency crystalline silicon solar cells

Molpeceres Álvarez, Carlos Luis; Colina Brito, Mónica; Muñoz Martín, David; Martín, Isidro; Ortega, Pablo; Sánchez, Isabel; Morales Furió, Miguel; Lauzurica Santiago, Sara; García Ballesteros, Juan J.; Voz, C.; López Rodríguez, Gema; Morales, Ana Belén y Alcubilla, R. (2013). New laser-based approaches to improve the passivation and rear contact quality in high effiency crystalline silicon solar cells. En: "Laser Material Processing for Solar Energy Devices II", San Diego, California, United States, 25/08/2013. https://doi.org/10.1117/12.2026202.

Descripción

Título: New laser-based approaches to improve the passivation and rear contact quality in high effiency crystalline silicon solar cells
Autor/es:
  • Molpeceres Álvarez, Carlos Luis
  • Colina Brito, Mónica
  • Muñoz Martín, David
  • Martín, Isidro
  • Ortega, Pablo
  • Sánchez, Isabel
  • Morales Furió, Miguel
  • Lauzurica Santiago, Sara
  • García Ballesteros, Juan J.
  • Voz, C.
  • López Rodríguez, Gema
  • Morales, Ana Belén
  • Alcubilla, R.
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: Laser Material Processing for Solar Energy Devices II
Fechas del Evento: San Diego, California, United States
Lugar del Evento: 25/08/2013
Título del Libro: Laser Material Processing for Solar Energy Devices II
Fecha: 2013
Volumen: 8826
Materias:
Palabras Clave Informales: Lasers ; Silicon solar cells ; Solar cells ; Silicon ; Doping ; Fabrication ; Laser irradiation ; Laser processing
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Física Aplicada a la Ingeniería Industrial [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img] PDF (Document Portable Format) - Acceso permitido solamente a usuarios en el campus de la UPM - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (987kB)

Resumen

Laser processing has been the tool of choice last years to develop improved concepts in contact formation for high efficiency crystalline silicon (c-Si) solar cells. New concepts based on standard laser fired contacts (LFC) or advanced laser doping (LD) techniques are optimal solutions for both the front and back contacts of a number of structures with growing interest in the c-Si PV industry. Nowadays, substantial efforts are underway to optimize these processes in order to be applied industrially in high efficiency concepts. However a critical issue in these devices is that, most of them, demand a very low thermal input during the fabrication sequence and a minimal damage of the structure during the laser irradiation process. Keeping these two objectives in mind, in this work we discuss the possibility of using laser-based processes to contact the rear side of silicon heterojunction (SHJ) solar cells in an approach fully compatible with the low temperature processing associated to these devices. First we discuss the possibility of using standard LFC techniques in the fabrication of SHJ cells on p-type substrates, studying in detail the effect of the laser wavelength on the contact quality. Secondly, we present an alternative strategy bearing in mind that a real challenge in the rear contact formation is to reduce the damage induced by the laser irradiation. This new approach is based on local laser doping techniques previously developed by our groups, to contact the rear side of p-type c-Si solar cells by means of laser processing before rear metallization of dielectric stacks containing Al2O3. In this work we demonstrate the possibility of using this new approach in SHJ cells with a distinct advantage over other standard LFC techniques.

Más información

ID de Registro: 21731
Identificador DC: http://oa.upm.es/21731/
Identificador OAI: oai:oa.upm.es:21731
Identificador DOI: 10.1117/12.2026202
Depositado por: Memoria Investigacion
Depositado el: 22 Mar 2014 12:49
Ultima Modificación: 21 Ago 2017 12:07
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM