Martins, Augusto, Borges, Ben Hur Viana, Li, Juntao et al. (2 more authors) (2017) Photonic Intermediate Structures for Perovskite/c-Silicon Four Terminal Tandem Solar Cells. IEEE Journal of Photovoltaics. ISSN 2156-3381
Abstract
Tandem perovskite/silicon devices are promising candidates for highly efficient and low-cost solar cells. Such tandem solar cells, however, require careful photon management for optimum performance, which can be achieved with intermediate photonic structures. Here, we identify the ideal requirements for such intermediate structures in perovskite/silicon tandem cells. Counter-intuitively, we find that the reflectance in the perovskite absorption window, i.e., below approx. 800 nm wavelength, does not have a strong impact on the tandem performance. Instead, the main function of the intermediate structure is to act as an optical impedance matching layer at the perovskite–silicon interface. This insight affords the design of simple and tolerant photonic structures that can obtain efficiencies surpassing 30%, assuming a passivated emitter, rear locally diffused (PERL) bottom cell and realistic perovskite top cell, by optical impedance matching alone.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 IEEE. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details |
Keywords: | Absorption,Impedance matching,Intermediate reflectors,Optical buffering,optical impedance matching,perovskite,Photonic band gap,photonic nanostructures,Photonics,Photovoltaic cells,photovoltaics,Silicon,silicon,tandem solar cells |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 17 Aug 2017 13:45 |
Last Modified: | 16 Oct 2024 13:57 |
Published Version: | https://doi.org/10.1109/JPHOTOV.2017.2713406 |
Status: | Published online |
Refereed: | Yes |
Identification Number: | 10.1109/JPHOTOV.2017.2713406 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:120284 |