Tailored disorder: a self-organized photonic contact for light trapping in silicon-based tandem solar cells
Abstract: We present a process development leading to efficient rear side light trapping structures with the purpose of enhancing the infrared response of a silicon-based tandem solar cell. To this end, we make use of phase separation effects of two immiscible polymers, polystyrene and poly(methyl methacrylate), resulting in a non-periodic polystyrene structure on silicon with a well-defined size distribution. Onto this pattern, we evaporate silver as a scattering rear side mirror and contact layer. Average feature sizes and periods can be tuned by varying material properties (e.g. molar weights or ratios of the polymers) as well as processing conditions during the spin coating. This way a favorable pseudo period of approx. 1 µm for these disordered structure features was realized and successfully implemented into a silicon solar cell. The structure shows a ring-shaped scattering distribution which is beneficial for light trapping in solar cells. External quantum efficiency measurements show that a gain in short circuit current density of 1.1 mA/cm2 compared to a planar reference can be achieved, which is in the same range as we achieved using nanoimprint lithography in a record triple-junction III/V on a silicon device
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Notes
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Optics express. - 28, 8 (2020) , 10909, ISSN: 1094-4087
- Classification
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Elektrotechnik, Elektronik
- Keyword
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Solarzelle
- Event
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Veröffentlichung
- (where)
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Freiburg
- (who)
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Universität
- (when)
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2020
- Creator
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Hauser, Hubert
Mühlbach, Kai
Höhn, Oliver
Müller, Ralph
Seitz, Sonja
Rühe, Jürgen
Glunz, Stefan
Bläsi, Benedikt
- DOI
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10.1364/OE.390312
- URN
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urn:nbn:de:bsz:25-freidok-1658671
- Rights
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Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
-
25.03.2025, 1:51 PM CET
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Hauser, Hubert
- Mühlbach, Kai
- Höhn, Oliver
- Müller, Ralph
- Seitz, Sonja
- Rühe, Jürgen
- Glunz, Stefan
- Bläsi, Benedikt
- Universität
Time of origin
- 2020
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Ladungsträgerrekombination in Silicium und Siliciumsolarzellen
Analysis of photonic structures for silicon solar cells
Implementing sputter-deposited transparent conductive metal oxides into passivating contacts for silicon solar cells
Accuracy of ray tracing and view factor optical models for energy yield prediction of fixed tilt and tracked bifacial PV systems
Determining the quality of photosupercapacitors and photobatteries in different modes of operation : : a new approach
Perovskite silicon tandem solar cells : : two-terminal perovskite silicon tandem solar cells using optimized n-i-p perovskite solar cells
High-resolution analysis of perovskite absorbers in photovoltaics
Lokale Laserdiffusion zur Herstellung hocheffizienter Siliziumsolarzellen
Interfacial analysis of perovskite solar cells using sub-cells
Understanding and resolving the discrepancy between differential and actual minority carrier lifetime
Evaluation of solder joints on aluminum surfaces for the interconnection of silicon solar cells
Perovskite photovoltaic modules with a very low CO2-eq footprint: the in-situ technology
Ladungsträgerrekombination in Silicium und Siliciumsolarzellen
Analysis of photonic structures for silicon solar cells
Implementing sputter-deposited transparent conductive metal oxides into passivating contacts for silicon solar cells
Accuracy of ray tracing and view factor optical models for energy yield prediction of fixed tilt and tracked bifacial PV systems
Determining the quality of photosupercapacitors and photobatteries in different modes of operation : : a new approach
Perovskite silicon tandem solar cells : : two-terminal perovskite silicon tandem solar cells using optimized n-i-p perovskite solar cells
High-resolution analysis of perovskite absorbers in photovoltaics
Lokale Laserdiffusion zur Herstellung hocheffizienter Siliziumsolarzellen
Interfacial analysis of perovskite solar cells using sub-cells
Understanding and resolving the discrepancy between differential and actual minority carrier lifetime
Evaluation of solder joints on aluminum surfaces for the interconnection of silicon solar cells