Transparent electrodes in silicon heterojunction solar cells: Influence on carrier recombination

Andrea Tomasi, Florent Sahli, Lorenzo Fanni, Johannes P. Seif, Silvia Martin De Nicolas, Niels Holm, Jonas Geissbuhler, Bertrand Paviet-Salomon, Philipp Loper, Sylvain Nicolay, Stefaan De Wolf, Christophe Ballif

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Hole and electron collectors in silicon heterojunction solar cells consist of hydrogenated amorphous silicon layer stacks deposited on the crystalline silicon wafer surfaces. Charge carrier extraction from these layers is achieved by electrodes consisting of a transparent conductive oxide and a metal layer. Earlier, the mere presence of the transparent conductive oxide layer on top of the hole collecting stack was shown to alter minority carrier lifetimes, at low minority injection levels, of the crystalline silicon absorber. In this work, we present a detailed investigation of the magnitude and nature of these effects and discuss their impact on silicon heterojunction solar cell performance for the different device architectures.

Original languageEnglish (US)
Title of host publication2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479979448
DOIs
StatePublished - Dec 14 2015
Event42nd IEEE Photovoltaic Specialist Conference, PVSC 2015 - New Orleans, United States
Duration: Jun 14 2015Jun 19 2015

Publication series

Name2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015

Other

Other42nd IEEE Photovoltaic Specialist Conference, PVSC 2015
CountryUnited States
CityNew Orleans
Period06/14/1506/19/15

Keywords

  • amorphous silicon
  • charge carrier lifetime
  • crystalline silicon
  • heterojunctions
  • photovoltaic cells

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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