Title
Backside contacted solar cells with heterojunction emitters and laser fired absorber contacts for crystalline silicon on glass
Date Issued
01 January 2017
Access level
metadata only access
Resource Type
conference paper
Author(s)
Frijnts T.
Gall S.
Rhein H.
Sonntag P.
Mazzarella L.
Kirner S.
Matarazzo C.
Schlatmann R.
Institut für Silizium Photovoltaik
Publisher(s)
Institute of Electrical and Electronics Engineers Inc.
Abstract
Backside contacted cells were fabricated on p- and n-type, liquid phase crystallized silicon on glass. The heterojunction emitter and transparent contacting layer were opened locally using an inkjet printer and the absorber was contacted with laser fired point contacts. An analytical resistance model was derived to determine the resistance losses for the point contact geometry. Using test structures and the model it was found that for p-type cells the main contribution to the cell resistance came from the absorber contact and the absorber. Both were strongly reduced by increasing the absorber doping. For n- type cells the main contributions originated from the emitter and emitter-TCO contact, which was improved by changing the emitter type, resulting in an 11.6 % solar cell.
Start page
1863
End page
1868
Language
English
OCDE Knowledge area
Física atómica, molecular y química
Scopus EID
2-s2.0-85048493446
ISBN
9781509056057
Source
2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017
Sponsor(s)
The Authors would like to thank Manuel Hartig, Khalid Bhatti, Andreas Opitz and Iris Dorbandt for technical support. This work was partly financed by the European Commision under Project CHEETAH (Grant no. 609788).
Sources of information: Directorio de Producción Científica Scopus