Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-23989
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dc.contributor.authorSirtl, Maximilian T.-
dc.contributor.authorHooijer, Rik-
dc.contributor.authorArmer, Melina-
dc.contributor.authorEbadi Garjan, Firouzeh-
dc.contributor.authorMohammadi, Mahdi-
dc.contributor.authorMaheu, Clément-
dc.contributor.authorWeis, Andreas-
dc.contributor.authorvan Gorkom, Bas T.-
dc.contributor.authorHäringer, Sebastian-
dc.contributor.authorJanssen, René A. J.-
dc.contributor.authorMayer, Thomas-
dc.contributor.authorDyakonov, Vladimir-
dc.contributor.authorTress, Wolfgang-
dc.contributor.authorBein, Thomas-
dc.date.accessioned2022-01-21T16:26:24Z-
dc.date.available2022-01-21T16:26:24Z-
dc.date.issued2022-
dc.identifier.issn1614-6832de_CH
dc.identifier.issn1614-6840de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/23989-
dc.description.abstractSince their introduction in 2017, the efficiency of lead-free halide perovskite solar cells based on Cs2AgBiBr6 has not exceeded 3%. The limiting bottlenecks are attributed to a low electron diffusion length, self-trapping events and poor selectivity of the contacts, leading to large non-radiative VOC losses. Here, 2D/3D hybrid double perovskites are introduced for the first time, using phenethyl ammonium as the constituting cation. The resulting solar cells show an increased efficiency of up to 2.5% for the champion cells and 2.03% on average, marking an improvement by 10% compared to the 3D reference on mesoporous TiO2. The effect is mainly due to a VOC improvement by up to 70 mV on average, yielding a maximum VOC of 1.18 V using different concentrations of phenethylammonium bromide. While these are among the highest reported VOC values for Cs2AgBiBr6 solar cells, the effect is attributed to a change in recombination behavior within the full device and a better selectivity at the interface toward the hole transporting material (HTM). This explanation is supported by voltage-dependent external quantum efficiency, as well as photoelectron spectroscopy, revealing a better energy level alignment and thus a better hole-extraction and improved electron blocking at the HTM interface.de_CH
dc.language.isoende_CH
dc.publisherWileyde_CH
dc.relation.ispartofAdvanced Energy Materialsde_CH
dc.rightshttp://creativecommons.org/licenses/by-nc/4.0/de_CH
dc.subject.ddc621.3: Elektro-, Kommunikations-, Steuerungs- und Regelungstechnikde_CH
dc.title2D/3D hybrid Cs2AgBiBr6 double perovskite solar cells : improved energy level alignment for higher contact‐selectivity and large open circuit voltagede_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitute of Computational Physics (ICP)de_CH
dc.identifier.doi10.1002/aenm.202103215de_CH
dc.identifier.doi10.21256/zhaw-23989-
zhaw.funding.euNode_CH
zhaw.issue7de_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.start2103215de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume12de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.webfeedPhotovoltaikde_CH
zhaw.funding.zhawModellierung und Charakterisierung von neuartigen optoelektronischen Bauelementende_CH
zhaw.author.additionalNode_CH
zhaw.display.portraitYesde_CH
Appears in collections:Publikationen School of Engineering

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Sirtl, M. T., Hooijer, R., Armer, M., Ebadi Garjan, F., Mohammadi, M., Maheu, C., Weis, A., van Gorkom, B. T., Häringer, S., Janssen, R. A. J., Mayer, T., Dyakonov, V., Tress, W., & Bein, T. (2022). 2D/3D hybrid Cs2AgBiBr6 double perovskite solar cells : improved energy level alignment for higher contact‐selectivity and large open circuit voltage. Advanced Energy Materials, 12(7), 2103215. https://doi.org/10.1002/aenm.202103215
Sirtl, M.T. et al. (2022) ‘2D/3D hybrid Cs2AgBiBr6 double perovskite solar cells : improved energy level alignment for higher contact‐selectivity and large open circuit voltage’, Advanced Energy Materials, 12(7), p. 2103215. Available at: https://doi.org/10.1002/aenm.202103215.
M. T. Sirtl et al., “2D/3D hybrid Cs2AgBiBr6 double perovskite solar cells : improved energy level alignment for higher contact‐selectivity and large open circuit voltage,” Advanced Energy Materials, vol. 12, no. 7, p. 2103215, 2022, doi: 10.1002/aenm.202103215.
SIRTL, Maximilian T., Rik HOOIJER, Melina ARMER, Firouzeh EBADI GARJAN, Mahdi MOHAMMADI, Clément MAHEU, Andreas WEIS, Bas T. VAN GORKOM, Sebastian HÄRINGER, René A. J. JANSSEN, Thomas MAYER, Vladimir DYAKONOV, Wolfgang TRESS und Thomas BEIN, 2022. 2D/3D hybrid Cs2AgBiBr6 double perovskite solar cells : improved energy level alignment for higher contact‐selectivity and large open circuit voltage. Advanced Energy Materials. 2022. Bd. 12, Nr. 7, S. 2103215. DOI 10.1002/aenm.202103215
Sirtl, Maximilian T., Rik Hooijer, Melina Armer, Firouzeh Ebadi Garjan, Mahdi Mohammadi, Clément Maheu, Andreas Weis, et al. 2022. “2D/3D Hybrid Cs2AgBiBr6 Double Perovskite Solar Cells : Improved Energy Level Alignment for Higher Contact‐Selectivity and Large Open Circuit Voltage.” Advanced Energy Materials 12 (7): 2103215. https://doi.org/10.1002/aenm.202103215.
Sirtl, Maximilian T., et al. “2D/3D Hybrid Cs2AgBiBr6 Double Perovskite Solar Cells : Improved Energy Level Alignment for Higher Contact‐Selectivity and Large Open Circuit Voltage.” Advanced Energy Materials, vol. 12, no. 7, 2022, p. 2103215, https://doi.org/10.1002/aenm.202103215.


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