This title appears in the Scientific Report :
2018
Please use the identifier:
http://hdl.handle.net/2128/19759 in citations.
Please use the identifier: http://dx.doi.org/10.1364/OE.26.00A750 in citations.
Optical design of spectrally selective interlayers for perovskite/silicon heterojunction tandem solar cells
Optical design of spectrally selective interlayers for perovskite/silicon heterojunction tandem solar cells
Monolithic perovskite/c-Si tandem solar cells have the potential to exceed the Shockley-Queisser limit for single junction solar cells. However, reflection losses at internal interfaces play a crucial role for the overall efficiency of the tandem devices. Significant reflection losses are caused by...
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Personal Name(s): | Bittkau, K. (Corresponding author) |
---|---|
Kirchartz, T. / Rau, U. | |
Contributing Institute: |
Photovoltaik; IEK-5 |
Published in: | Optics express, 26 (2018) 18, S. A750-A760 |
Imprint: |
Washington, DC
Soc.
2018
|
DOI: |
10.1364/OE.26.00A750 |
PubMed ID: |
30184834 |
Document Type: |
Journal Article |
Research Program: |
Solar cells of the next generation |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1364/OE.26.00A750 in citations.
Monolithic perovskite/c-Si tandem solar cells have the potential to exceed the Shockley-Queisser limit for single junction solar cells. However, reflection losses at internal interfaces play a crucial role for the overall efficiency of the tandem devices. Significant reflection losses are caused by the charge selective contacts which have a significantly lower refractive index compared to the absorber materials. Here, we present an approach to overcome a significant part of these reflection losses by introducing a multilayer stack between the top and bottom cell which shows spectrally selective transmission/reflection behavior. The layer stack is designed and optimized by optical simulations using transfer matrix method and a genetic algorithm. The incident sun light is split into a direct part and an isotropic diffuse part. The tandem solar cell with interlayer shows an absolute improvement of short-circuit current density of 0.82 mA/cm2. |