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The First Glued Tandem Solar Cell Using a ZnO Based Adhesive

 
: Heitmann, U.; Bartsch, J.; Kluska, S.; Hermann, R.; Hauser, H.; Höhn, O.; Predan, F.; Lackner, D.; Dimroth, F.; Janz, S.

:
Postprint urn:nbn:de:0011-n-6249498 (509 KByte PDF)
MD5 Fingerprint: 2ceca2b9a3958bcad55c4b2da6889f24
© IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Created on: 26.2.2021

presentation urn:nbn:de:0011-n-624949-12 (1.8 MByte PDF)
MD5 Fingerprint: a3cca2e6f14b5e314f30b397c9ae9375
Created on: 3.3.2021


Institute of Electrical and Electronics Engineers -IEEE-:
47th IEEE Photovoltaic Specialists Conference, PVSC 2020 : 15-21 June 2020, Calgary, Canada, Virtual Meeting
Piscataway, NJ: IEEE, 2020
ISBN: 978-1-7281-6116-7 (Print)
ISBN: 978-1-7281-6115-0
pp.426-430
Photovoltaic Specialists Conference (PVSC) <47, 2020, Online>
English
Conference Paper, Electronic Publication
Fraunhofer ISE ()
Photovoltaik; Neuartige Photovoltaik-Technologien; Tandemsolarzellen auf kristallinem Silicium

Abstract
By adjusting the process flow of a newly developed transparent conductive adhesive (TCA), the first mechanically stable interconnection of a glued III-V on Si tandem solar cell was established utilizing a ZnO-based adhesive. The measured VOC of 1691 mV is a first proof of concept for the developed TCA. The functionality of the two sub-cells in the tandem device was proven by external quantum efficiency (EQE) measurements. The reflectance at the bond interface of such a glued tandem solar cell remains the limiting factor. In order to reduce the optical losses, the effect of a textured silicon surface was investigated in test structures, which indeed showed reduced reflectance. Furthermore, this textured test structure showed an improved connecting resistivity as low as 83 mΩcm2.

: http://publica.fraunhofer.de/documents/N-624949.html