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Modeling and realization of photonic structures for silicon-based tandem solar cells

: Höhn, Oliver; Hauser, Hubert; Tucher, Nico; Müller, Ralph; Bläsi, Benedikt

Volltext urn:nbn:de:0011-n-5934460 (747 KByte PDF)
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Copyright Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Erstellt am: 23.7.2020

Freundlich, A. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IX : 4-6 February 2020, San Francisco, California, United States
Bellingham, WA: SPIE, 2020 (Proceedings of SPIE 11275)
ISBN: 978-1-5106-3313-1
ISBN: 978-1-5106-3314-8
Paper 1127502, 10 S.
Photonics West Conference <2020, San Francisco/Calif.>
Conference "Physics, Simulation, and Photonic Engineering of Photovoltaic Devices" <9, 2020, San Francisco/Calif.>
European Commission EC
H2020-Low-cost, low-carbon energy supply - Developing the next generation technologies of renewable electricity and heating/cooling; 727497; SiTaSol
Application relevant validation of c-Si based tandem solar cell processes with 30 % efficiency target
Bundesministerium fur Wirtschaft und Energie BMWi (Deutschland)
0324247; PoTaSi
Demonstration des Potentials von monolithischen Tandemsolarzellen aus III-V Halbleitern und Silicium
Konferenzbeitrag, Elektronische Publikation
Fraunhofer ISE ()
Photovoltaik; Silicium-Photovoltaik; Neuartige Photovoltaik-Technologie; Oberflächen: Konditionierung; Passivierung; Lichteinfang; Photonenmanagement; Tandemsolarzellen auf kristallinem Silicium

Different photonic light trapping structures realized by a combination of interference- and nanoimprint-lithography as well as based on self-organization processes are presented. Their potential as rear side light trapping structures for silicon based tandem solar cells is evaluated based on the comparison of EQE measurements and optical modeling. The photonic structure used in the current world record III-V silicon tandem solar cell is a metallic crossed grating with 1μm period. This structure is shown in detail and acts as benchmark for the comparison of the concepts. Finally, the requirements for a successful implementation of photonic structures in highest efficiency solar cells are shown.