Effect of electroless nickel on the series resistance of high-efficiency inkjet printed passivated emitter rear contacted solar cells

Martha A. T. Lenio, A. J. Lennon, A. Ho-Baillie, S. R. Wenham

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Many existing and emerging solar cell technologies rely on plated metal to form the front surface contacts, and aluminium to form the rear contact. Interactions between the metal plating solutions and the aluminium rear can have a significant impact on cell performance. This paper describes non-uniform nickel deposition on the sintered aluminium rear surface of passivated emitter and rear contacted (PERC) cells patterned using an inkjet printing technique. Rather than being plated homogeneously over the entire rear surface as is observed on an alloyed aluminium rear, the nickel is plated only in the vicinity of the point openings in the rear surface silicon dioxide dielectric layer. Furthermore, this non-uniform nickel deposition was shown to increase the contact resistance of the rear point contacts by an order of magnitude, resulting in higher series resistance values for these fabricated PERC cells.

Original languageEnglish
Pages (from-to)2102-2107
Number of pages6
JournalSolar Energy Materials and Solar Cells
Volume94
Issue number12
DOIs
Publication statusPublished - Dec 2010
Externally publishedYes

Keywords

  • inkjet
  • electroless nickel plating
  • PERC
  • silicon
  • solar cell

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