Fineline Printing Options for High Efficiencies and Low Ag Paste Consumption

Publikation: Beitrag in FachzeitschriftKonferenzaufsatz in FachzeitschriftForschungPeer-Review

Autoren

  • Helge Hannebauer
  • Thorsten Dullweber
  • Tom Falcon
  • Rolf Brendel

Organisationseinheiten

Externe Organisationen

  • Institut für Solarenergieforschung GmbH (ISFH)
  • DEK Printing Solutions (ASMPT)
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)725-731
Seitenumfang7
FachzeitschriftEnergy Procedia
Jahrgang38
Frühes Online-Datum5 Sept. 2013
PublikationsstatusVeröffentlicht - 2013
Veranstaltung3rd International Conference on Crystalline Silicon Photovoltaics, SiliconPV 2013 - Hamelin, Deutschland
Dauer: 25 März 201327 März 2013

Abstract

In this paper, we investigate and compare three different fine line printing techniques for the silver front side metallization of industrial-type silicon solar cells: single print, dual print and print-on-print. We produce solar cells using the same screen or stencil aperture of 40 μm and about 92 fingers and obtain finger widths below 60 μm for all three approaches. The print-on-print process achieves the highest finger heights of 20 μm after firing but with quite strong finger height variation. In contrast, the dual printed fingers have a very flat surface with a finger height of 14.5 μm which leads to the highest cross-section area of 530 μm2 of the three techniques. The single print shows the lowest cross-section area of 390 μm2 due to the lowest average finger height. The measured finger line resistance correlates with the finger cross-section area. The dual print allows us to use a non-firing through bus bar paste which increases the V oc by 2 mV and hence achieves the highest efficiency of 19.1% using full-area Al-BSF cells. Due to an optimized bus bar screen print in combination with only 30 μm finger aperture, the dual print has the lowest Ag paste consumption of only 75 mg/wafer, one of the lowest Ag paste consumption that has been reported so far. A first batch of PERC solar cells with dual-printed Ag front contacts shows efficiencies up to 19.6%.

ASJC Scopus Sachgebiete

Zitieren

Fineline Printing Options for High Efficiencies and Low Ag Paste Consumption. / Hannebauer, Helge; Dullweber, Thorsten; Falcon, Tom et al.
in: Energy Procedia, Jahrgang 38, 2013, S. 725-731.

Publikation: Beitrag in FachzeitschriftKonferenzaufsatz in FachzeitschriftForschungPeer-Review

Hannebauer, H, Dullweber, T, Falcon, T & Brendel, R 2013, 'Fineline Printing Options for High Efficiencies and Low Ag Paste Consumption', Energy Procedia, Jg. 38, S. 725-731. https://doi.org/10.1016/j.egypro.2013.07.339, https://doi.org/10.15488/997
Hannebauer, H., Dullweber, T., Falcon, T., & Brendel, R. (2013). Fineline Printing Options for High Efficiencies and Low Ag Paste Consumption. Energy Procedia, 38, 725-731. https://doi.org/10.1016/j.egypro.2013.07.339, https://doi.org/10.15488/997
Hannebauer H, Dullweber T, Falcon T, Brendel R. Fineline Printing Options for High Efficiencies and Low Ag Paste Consumption. Energy Procedia. 2013;38:725-731. Epub 2013 Sep 5. doi: 10.1016/j.egypro.2013.07.339, 10.15488/997
Hannebauer, Helge ; Dullweber, Thorsten ; Falcon, Tom et al. / Fineline Printing Options for High Efficiencies and Low Ag Paste Consumption. in: Energy Procedia. 2013 ; Jahrgang 38. S. 725-731.
Download
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