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Fundamental limit of nanophotonic light trapping in solar cells
Open accessAbstract
Establishing the fundamental limit of nanophotonic light-trapping schemes is of paramount importance and is becoming increasingly urgent for current solar cell research. The standard theory of light trapping demonstrated that absorption enhancement in a medium cannot exceed a factor of 4 n 2 / sin 2 θ , where n is the refractive index of the active layer, and θ is the angle of the emission cone in the medium surrounding the cell. This theory, however, is not applicable in the nanophotonic regime. Here we develop a statistical temporal coupled-mode theory of light trapping based on a rigorous electromagnetic approach. Our theory reveals that the conventional limit can be substantially surpassed when optical modes exhibit deep-subwavelength-scale field confinement, opening new avenues for highly efficient next-generation solar cells.
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Cites
Absence of Diffusion in Certain Random Lattices
Anderson, P. W. (1958) · Physical Review · doi:10.1103/physrev.109.1492 · Cited by 12,468
Cited by
Inverse design in nanophotonics
Molesky, S., Lin, Z., Piggott, A. Y., Jin, W., Vucković, J., & Rodriguez, A. W. (2018) · Nature Photonics · doi:10.1038/s41566-018-0246-9 · Cited by 1,818
Low-Temperature Solution-Processed Perovskite Solar Cells with High Efficiency and Flexibility
You, J., Hong, Z., Yang, Y. (., Chen, Q., Cai, M., Song, T.-B., Chen, C.-C., Lu, S., Liu, Y., Zhou, H., et al. (2014) · ACS Nano · doi:10.1021/nn406020d · Cited by 1,448
Ultrabroadband Light Absorption by a Sawtooth Anisotropic Metamaterial Slab
Cui, Y., Fung, K. H., Xu, J., Ma, H., Jin, Y., He, S., & Fang, N. X. (2012) · Nano Letters · doi:10.1021/nl204118h · Cited by 1,016
Wang, K. X., Yu, Z., Liu, V., Cui, Y., & Fan, S. (2012) · Nano Letters · doi:10.1021/nl204550q · Cited by 657
Self-citationSilicon solar cells: toward the efficiency limits
Andreani, L. C., Bozzola, A., Kowalczewski, P., Liscidini, M., & Redorici, L. (2019) · Advances in Physics: X · doi:10.1080/23746149.2018.1548305 · Cited by 474
Metadata
- Authors
- Yu, Z., Raman, A., & Fan, S.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2010-09-27
- Volume
- 107
- Issue
- 41
- Pages
- 17491-17496
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2135942920
- Cited by
- 779
- References
- 1
- FWCI
- 33.86
- Type
- journal article
- Language
- en
- Open access
- bronze
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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