Please use this identifier to cite or link to this item:
https://doi.org/10.21256/zhaw-22734Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Sirtl, Maximilian T. | - |
| dc.contributor.author | Ebadi, Firouzeh | - |
| dc.contributor.author | van Gorkom, Bas T. | - |
| dc.contributor.author | Ganswindt, Patrick | - |
| dc.contributor.author | Janssen, René A. J. | - |
| dc.contributor.author | Bein, Thomas | - |
| dc.contributor.author | Tress, Wolfgang | - |
| dc.date.accessioned | 2021-06-23T12:59:31Z | - |
| dc.date.available | 2021-06-23T12:59:31Z | - |
| dc.date.issued | 2021-06-21 | - |
| dc.identifier.issn | 2195-1071 | de_CH |
| dc.identifier.uri | https://digitalcollection.zhaw.ch/handle/11475/22734 | - |
| dc.description.abstract | Cs2AgBiBr6 has attracted much interest as a potential lead-free alternative for perovskite solar cells. Although this material offers encouraging optoelectronic features, severe bottlenecks limit the performance of the resulting solar cells to a power conversion efficiency of below 3%. Here, the performance-limiting factors of this material are investigated in full solar cells featuring various architectures. It is found that the photovoltaic parameters of Cs2AgBiBr6-based solar cells strongly depend on the scan speed of the J/V measurements, suggesting a strong impact of ionic conductivity in the material. Moreover, a sign change of the photocurrent for bias voltages above 0.9 V during the measurement of the external quantum efficiency (EQE) is revealed, which can be explained by non-selective contacts. The radiative loss of the VOC from sensitive subgap-EQE measurements is calculated and it is revealed that the loss is caused by a low external luminescence yield and therefore a high non-radiative recombination, supported by the first report of a strongly red shifted electroluminescence signal between 800 and 1000 nm. Altogether, these results point to a poor selectivity of the contacts and charge transport layers, caused by poor energy level alignment that can be overcome by optimizing the architecture of the solar cell. | de_CH |
| dc.language.iso | en | de_CH |
| dc.publisher | Wiley | de_CH |
| dc.relation.ispartof | Advanced Optical Materials | de_CH |
| dc.rights | http://creativecommons.org/licenses/by-nc/4.0/ | de_CH |
| dc.subject.ddc | 621.3: Elektro-, Kommunikations-, Steuerungs- und Regelungstechnik | de_CH |
| dc.title | The bottlenecks of Cs2AgBiBr6 solar cells : how contacts and slow transients limit the performance | de_CH |
| dc.type | Beitrag in wissenschaftlicher Zeitschrift | de_CH |
| dcterms.type | Text | de_CH |
| zhaw.departement | School of Engineering | de_CH |
| zhaw.organisationalunit | Institute of Computational Physics (ICP) | de_CH |
| dc.identifier.doi | 10.1002/adom.202100202 | de_CH |
| dc.identifier.doi | 10.21256/zhaw-22734 | - |
| zhaw.funding.eu | Not specified | de_CH |
| zhaw.issue | 14 | de_CH |
| zhaw.originated.zhaw | Yes | de_CH |
| zhaw.pages.start | 2100202 | de_CH |
| zhaw.publication.status | publishedVersion | de_CH |
| zhaw.volume | 9 | de_CH |
| zhaw.publication.review | Peer review (Publikation) | de_CH |
| zhaw.webfeed | Photovoltaik | de_CH |
| zhaw.webfeed | Photonics | de_CH |
| zhaw.funding.zhaw | Modellierung und Charakterisierung von neuartigen optoelektronischen Bauelementen | de_CH |
| zhaw.author.additional | No | de_CH |
| zhaw.display.portrait | Yes | de_CH |
| Appears in collections: | Publikationen School of Engineering | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2021_Sirtl-etal_The-bottlenecks-of-Cs2AgBiBr6-solar-cells.pdf | 3.21 MB | Adobe PDF |  View/Open |
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Sirtl, M. T., Ebadi, F., van Gorkom, B. T., Ganswindt, P., Janssen, R. A. J., Bein, T., & Tress, W. (2021). The bottlenecks of Cs2AgBiBr6 solar cells : how contacts and slow transients limit the performance. Advanced Optical Materials, 9(14), 2100202. https://doi.org/10.1002/adom.202100202
Sirtl, M.T. et al. (2021) ‘The bottlenecks of Cs2AgBiBr6 solar cells : how contacts and slow transients limit the performance’, Advanced Optical Materials, 9(14), p. 2100202. Available at: https://doi.org/10.1002/adom.202100202.
M. T. Sirtl et al., “The bottlenecks of Cs2AgBiBr6 solar cells : how contacts and slow transients limit the performance,” Advanced Optical Materials, vol. 9, no. 14, p. 2100202, Jun. 2021, doi: 10.1002/adom.202100202.
SIRTL, Maximilian T., Firouzeh EBADI, Bas T. VAN GORKOM, Patrick GANSWINDT, René A. J. JANSSEN, Thomas BEIN und Wolfgang TRESS, 2021. The bottlenecks of Cs2AgBiBr6 solar cells : how contacts and slow transients limit the performance. Advanced Optical Materials. 21 Juni 2021. Bd. 9, Nr. 14, S. 2100202. DOI 10.1002/adom.202100202
Sirtl, Maximilian T., Firouzeh Ebadi, Bas T. van Gorkom, Patrick Ganswindt, René A. J. Janssen, Thomas Bein, and Wolfgang Tress. 2021. “The Bottlenecks of Cs2AgBiBr6 Solar Cells : How Contacts and Slow Transients Limit the Performance.” Advanced Optical Materials 9 (14): 2100202. https://doi.org/10.1002/adom.202100202.
Sirtl, Maximilian T., et al. “The Bottlenecks of Cs2AgBiBr6 Solar Cells : How Contacts and Slow Transients Limit the Performance.” Advanced Optical Materials, vol. 9, no. 14, June 2021, p. 2100202, https://doi.org/10.1002/adom.202100202.
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