Destructive reverse bias pinning in perovskite/silicon tandem solar modules caused by perovskite hysteresis under dynamic shading
Abstract
In this work, we demonstrate how perovskite hysteresis can result in permanent reductions in power output in perovskite/silicon tandem modules—including irreversible hotspot-induced damage—from only brief periods of shading. We show that reverse bias events in which a perovskite cell is biased above a threshold voltage—which in this work we find to be as low as –1.1 V—produces a temporary reduction in power output that is of sufficient magnitude to keep the cell pinned in reverse bias after the shading event ends. As a hysteretic phenomena, this crucial failure mode may be overlooked by static models of perovskite-based solar cells. Higher reverse bias voltages exacerbate the temporary reduction in short-circuit photocurrent, which is also sensitive to the level of illumination under reverse bias. Numerical device modelling demonstrates that this effect is consistent with our understanding of perovskite hysteresis as a consequence of mobile ion-electron coupling controlling rates of non-radiative recombination over time. Measurements of the dynamic response of single-junction perovskite cells are extrapolated to two-terminal and four-terminal perovskite/silicon tandem module modelling. We validate these models with measurements from an equivalent electronic circuit that represents a two-terminal perovskite–silicon tandem mini module. Two module-level solutions are discussed that address this issue, which includesmore »
- Authors:
-
- Australian National Univ., Canberra, ACT (Australia)
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Publication Date:
- Research Org.:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
- OSTI Identifier:
- 1660229
- Report Number(s):
- NREL/JA-5K00-75679
Journal ID: ISSN 2398-4902; MainId:6770;UUID:b072e4f5-4720-ea11-9c2a-ac162d87dfe5;MainAdminID:17315
- Grant/Contract Number:
- AC36-08GO28308
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Sustainable Energy & Fuels
- Additional Journal Information:
- Journal Volume: 4; Journal Issue: 8; Journal ID: ISSN 2398-4902
- Publisher:
- Royal Society of Chemistry
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; perovskite; shading; silicon tandem
Citation Formats
Qian, Jiadong, Ernst, Marco, Walter, Daniel, Mahmud, Md Arafat, Hacke, Peter, Weber, Klaus, Al-Jassim, Mowafak, and Blakers, Andrew. Destructive reverse bias pinning in perovskite/silicon tandem solar modules caused by perovskite hysteresis under dynamic shading. United States: N. p., 2020.
Web. doi:10.1039/c9se01246j.
Qian, Jiadong, Ernst, Marco, Walter, Daniel, Mahmud, Md Arafat, Hacke, Peter, Weber, Klaus, Al-Jassim, Mowafak, & Blakers, Andrew. Destructive reverse bias pinning in perovskite/silicon tandem solar modules caused by perovskite hysteresis under dynamic shading. United States. https://doi.org/10.1039/c9se01246j
Qian, Jiadong, Ernst, Marco, Walter, Daniel, Mahmud, Md Arafat, Hacke, Peter, Weber, Klaus, Al-Jassim, Mowafak, and Blakers, Andrew. Tue .
"Destructive reverse bias pinning in perovskite/silicon tandem solar modules caused by perovskite hysteresis under dynamic shading". United States. https://doi.org/10.1039/c9se01246j. https://www.osti.gov/servlets/purl/1660229.
@article{osti_1660229,
title = {Destructive reverse bias pinning in perovskite/silicon tandem solar modules caused by perovskite hysteresis under dynamic shading},
author = {Qian, Jiadong and Ernst, Marco and Walter, Daniel and Mahmud, Md Arafat and Hacke, Peter and Weber, Klaus and Al-Jassim, Mowafak and Blakers, Andrew},
abstractNote = {In this work, we demonstrate how perovskite hysteresis can result in permanent reductions in power output in perovskite/silicon tandem modules—including irreversible hotspot-induced damage—from only brief periods of shading. We show that reverse bias events in which a perovskite cell is biased above a threshold voltage—which in this work we find to be as low as –1.1 V—produces a temporary reduction in power output that is of sufficient magnitude to keep the cell pinned in reverse bias after the shading event ends. As a hysteretic phenomena, this crucial failure mode may be overlooked by static models of perovskite-based solar cells. Higher reverse bias voltages exacerbate the temporary reduction in short-circuit photocurrent, which is also sensitive to the level of illumination under reverse bias. Numerical device modelling demonstrates that this effect is consistent with our understanding of perovskite hysteresis as a consequence of mobile ion-electron coupling controlling rates of non-radiative recombination over time. Measurements of the dynamic response of single-junction perovskite cells are extrapolated to two-terminal and four-terminal perovskite/silicon tandem module modelling. We validate these models with measurements from an equivalent electronic circuit that represents a two-terminal perovskite–silicon tandem mini module. Two module-level solutions are discussed that address this issue, which includes increasing the number of bypass diodes and choosing better suited silicon bottom cells with higher shunter resistance in two-terminal tandem modules.},
doi = {10.1039/c9se01246j},
journal = {Sustainable Energy & Fuels},
number = 8,
volume = 4,
place = {United States},
year = {Tue Jun 09 00:00:00 EDT 2020},
month = {Tue Jun 09 00:00:00 EDT 2020}
}
Web of Science
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