Relaxed Current Matching Requirements in Highly Luminescent Perovskite Tandem Solar Cells and Their Fundamental Efficiency Limits
Abstract
Perovskite-based tandem solar cells are of increasing interest as they approach commercialization. Here we use experimental parameters from optical spectroscopy measurements to calculate the limiting efficiency of perovskite–silicon and all-perovskite two-terminal tandems, employing currently available bandgap materials, as 42.0% and 40.8%, respectively. We show luminescence coupling between subcells (the optical transfer of photons from the high-bandgap to low-bandgap subcell) relaxes current matching when the high-bandgap subcell is a luminescent perovskite. We calculate that luminescence coupling becomes important at charge trapping rates (=106 s-1) already being achieved in relevant halide perovskites. Luminescence coupling increases flexibility in subcell thicknesses and tolerance to different spectral conditions. For maximal benefit, the high-bandgap subcell should have the higher short-circuit current under average spectral conditions. This can be achieved by reducing the bandgap of the high-bandgap subcell, allowing wider, unstable bandgap compositions to be avoided. Lastly, we visualize luminescence coupling in an all-perovskite tandem through cross-section luminescence imaging.
- Authors:
-
[1];
[2];
[3];
[1];
[4];
[1]
- Univ. of Cambridge (United Kingdom). Cavendish Lab.
- Max Planck Inst. for Solid State Research, Stuttgart (Germany)
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Max Planck Inst. for Solid State Research, Stuttgart (Germany); Ludwig-Maximilians-Univ. (LMU), Munich, (Germany); E-conversion, Garching (Germany)
- Publication Date:
- Research Org.:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE National Renewable Energy Laboratory (NREL), Laboratory Directed Research and Development (LDRD) Program; European Research Council (ERC); Engineering and Physical Sciences Research Council (EPSRC)
- OSTI Identifier:
- 1769823
- Report Number(s):
- NREL/JA-5900-79254
Journal ID: ISSN 2380-8195; MainId:33480;UUID:3329e7c0-e3d1-40bf-af67-e4ed2281734a;MainAdminID:19773
- Grant/Contract Number:
- AC36-08GO28308; 756962; EP/R023980/1; EP/T02030X/1; EP/S030638/1
- Resource Type:
- Accepted Manuscript
- Journal Name:
- ACS Energy Letters
- Additional Journal Information:
- Journal Volume: 6; Journal Issue: 2; Journal ID: ISSN 2380-8195
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; charge trapping; efficiency; energy gap; light; luminescence; perovskite; thickness; absorption; solar cells; electrical conductivity
Citation Formats
Bowman, Alan R., Lang, Felix, Chiang, Yu-Hsien, Jiménez-Solano, Alberto, Frohna, Kyle, Eperon, Giles E., Ruggeri, Edoardo, Abdi-Jalebi, Mojtaba, Anaya, Miguel, Lotsch, Bettina V., and Stranks, Samuel D. Relaxed Current Matching Requirements in Highly Luminescent Perovskite Tandem Solar Cells and Their Fundamental Efficiency Limits. United States: N. p., 2021.
Web. doi:10.1021/acsenergylett.0c02481.
Bowman, Alan R., Lang, Felix, Chiang, Yu-Hsien, Jiménez-Solano, Alberto, Frohna, Kyle, Eperon, Giles E., Ruggeri, Edoardo, Abdi-Jalebi, Mojtaba, Anaya, Miguel, Lotsch, Bettina V., & Stranks, Samuel D. Relaxed Current Matching Requirements in Highly Luminescent Perovskite Tandem Solar Cells and Their Fundamental Efficiency Limits. United States. https://doi.org/10.1021/acsenergylett.0c02481
Bowman, Alan R., Lang, Felix, Chiang, Yu-Hsien, Jiménez-Solano, Alberto, Frohna, Kyle, Eperon, Giles E., Ruggeri, Edoardo, Abdi-Jalebi, Mojtaba, Anaya, Miguel, Lotsch, Bettina V., and Stranks, Samuel D. Fri .
"Relaxed Current Matching Requirements in Highly Luminescent Perovskite Tandem Solar Cells and Their Fundamental Efficiency Limits". United States. https://doi.org/10.1021/acsenergylett.0c02481. https://www.osti.gov/servlets/purl/1769823.
@article{osti_1769823,
title = {Relaxed Current Matching Requirements in Highly Luminescent Perovskite Tandem Solar Cells and Their Fundamental Efficiency Limits},
author = {Bowman, Alan R. and Lang, Felix and Chiang, Yu-Hsien and Jiménez-Solano, Alberto and Frohna, Kyle and Eperon, Giles E. and Ruggeri, Edoardo and Abdi-Jalebi, Mojtaba and Anaya, Miguel and Lotsch, Bettina V. and Stranks, Samuel D.},
abstractNote = {Perovskite-based tandem solar cells are of increasing interest as they approach commercialization. Here we use experimental parameters from optical spectroscopy measurements to calculate the limiting efficiency of perovskite–silicon and all-perovskite two-terminal tandems, employing currently available bandgap materials, as 42.0% and 40.8%, respectively. We show luminescence coupling between subcells (the optical transfer of photons from the high-bandgap to low-bandgap subcell) relaxes current matching when the high-bandgap subcell is a luminescent perovskite. We calculate that luminescence coupling becomes important at charge trapping rates (=106 s-1) already being achieved in relevant halide perovskites. Luminescence coupling increases flexibility in subcell thicknesses and tolerance to different spectral conditions. For maximal benefit, the high-bandgap subcell should have the higher short-circuit current under average spectral conditions. This can be achieved by reducing the bandgap of the high-bandgap subcell, allowing wider, unstable bandgap compositions to be avoided. Lastly, we visualize luminescence coupling in an all-perovskite tandem through cross-section luminescence imaging.},
doi = {10.1021/acsenergylett.0c02481},
journal = {ACS Energy Letters},
number = 2,
volume = 6,
place = {United States},
year = {Fri Jan 22 00:00:00 EST 2021},
month = {Fri Jan 22 00:00:00 EST 2021}
}
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