Large-area hybrid silicon heterojunction solar cells with Ni/Cu plated front contacts

Loic Tous, Stefano Nicola Granata*, Alireza Rouhi, Jean Francois Lerat, Thierry Emeraud, Silvia Martin De Nicolas, Tobias Markus Pletzer, Riet Labie, Monica Aleman, Richard Russell, Joachim John, Filip Duerinckx, Jozef Szlufcik, Stefaan De Wolf, Christophe Ballif, Robert Mertens, Jef Poortmans

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations

Abstract

Ni/Cu plated front contacts are applied to large-area hybrid silicon heterojunction (SHJ) solar cells consisting of a diffused front surface field and intrinsic and boron doped a-Si:H(i/p+) layers forming the rear SHJ emitter. Nickel silicide front contacts are formed by excimer laser annealing (ELA) which unlike rapid thermal annealing (RTA) is shown to be compatible with a rear SHJ emitter. A top efficiency of 20.1% (externally confirmed at FhG-ISE CalLab), with jsc=39.0 mA/cm2, Voc=675.1mV, and FF=76.5% is obtained on 15.6x15.6 cm2 n-type Cz-Si in a first trial and this without compromising solder tab adhesion results at the front side. Limitations arising from series resistance at the rear side and from recombination at the front side are discussed.

Original languageEnglish (US)
Pages (from-to)715-723
Number of pages9
JournalEnergy Procedia
Volume55
DOIs
StatePublished - Jan 1 2014
Event4th International Conference on Crystalline Silicon Photovoltaics, SiliconPV 2014 - Hertogenbosch, Netherlands
Duration: Mar 25 2014Mar 27 2014

Keywords

  • Copper
  • Hybrid
  • Nickel
  • Silicon heterojunction

ASJC Scopus subject areas

  • Energy(all)

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