Patricia S. C. Schulze, Alexander J. Bett, Martin Bivour, Pietro Caprioglio, Fabian M. Gerspacher, Özde Ş. Kabaklı, Armin Richter, Martin Stolterfoht, Qinxin Zhang, Dieter Neher, Martin Hermle, Harald Hillebrecht, Stefan W. Glunz, Jan Christoph Goldschmidt
- Monolithic perovskite silicon tandem solar cells can overcome the theoretical efficiency limit of silicon solar cells. This requires an optimum bandgap, high quantum efficiency, and high stability of the perovskite. Herein, a silicon heterojunction bottom cell is combined with a perovskite top cell, with an optimum bandgap of 1.68 eV in planar p-i-n tandem configuration. A methylammonium-free FA(0.75)Cs(0.25)Pb(I0.8Br0.2)(3) perovskite with high Cs content is investigated for improved stability. A 10% molarity increase to 1.1 m of the perovskite precursor solution results in approximate to 75 nm thicker absorber layers and 0.7 mA cm(-2) higher short-circuit current density. With the optimized absorber, tandem devices reach a high fill factor of 80% and up to 25.1% certified efficiency. The unencapsulated tandem device shows an efficiency improvement of 2.3% (absolute) over 5 months, showing the robustness of the absorber against degradation. Moreover, a photoluminescence quantum yield analysis reveals that with adapted chargeMonolithic perovskite silicon tandem solar cells can overcome the theoretical efficiency limit of silicon solar cells. This requires an optimum bandgap, high quantum efficiency, and high stability of the perovskite. Herein, a silicon heterojunction bottom cell is combined with a perovskite top cell, with an optimum bandgap of 1.68 eV in planar p-i-n tandem configuration. A methylammonium-free FA(0.75)Cs(0.25)Pb(I0.8Br0.2)(3) perovskite with high Cs content is investigated for improved stability. A 10% molarity increase to 1.1 m of the perovskite precursor solution results in approximate to 75 nm thicker absorber layers and 0.7 mA cm(-2) higher short-circuit current density. With the optimized absorber, tandem devices reach a high fill factor of 80% and up to 25.1% certified efficiency. The unencapsulated tandem device shows an efficiency improvement of 2.3% (absolute) over 5 months, showing the robustness of the absorber against degradation. Moreover, a photoluminescence quantum yield analysis reveals that with adapted charge transport materials and surface passivation, along with improved antireflection measures, the high bandgap perovskite absorber has the potential for 30% tandem efficiency in the near future.…
MetadatenVerfasserangaben: | Patricia S. C. SchulzeORCiDGND, Alexander J. BettORCiDGND, Martin BivourGND, Pietro CaprioglioORCiDGND, Fabian M. Gerspacher, Özde Ş. KabaklıORCiD, Armin Richter, Martin StolterfohtORCiDGND, Qinxin Zhang, Dieter NeherORCiDGND, Martin HermleORCiDGND, Harald HillebrechtORCiDGND, Stefan W. GlunzORCiDGND, Jan Christoph GoldschmidtORCiDGND |
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URN: | urn:nbn:de:kobv:517-opus4-525668 |
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DOI: | https://doi.org/10.25932/publishup-52566 |
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ISSN: | 1866-8372 |
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Titel des übergeordneten Werks (Deutsch): | Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe |
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Schriftenreihe (Bandnummer): | Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe (1197) |
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Publikationstyp: | Postprint |
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Sprache: | Englisch |
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Datum der Erstveröffentlichung: | 20.03.2020 |
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Erscheinungsjahr: | 2020 |
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Veröffentlichende Institution: | Universität Potsdam |
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Datum der Freischaltung: | 10.11.2021 |
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Freies Schlagwort / Tag: | heterojunction silicon solar cells; interfaces; perovskite solar cells; tandem solar cells; thin films |
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Ausgabe: | 7 |
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Aufsatznummer: | 2000152 |
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Seitenanzahl: | 12 |
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Quelle: | Sol. RRL, 4: 2000152. https://doi.org/10.1002/solr.202000152 |
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Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
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DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
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Peer Review: | Referiert |
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Publikationsweg: | Open Access / Green Open-Access |
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Lizenz (Deutsch): | CC-BY-NC-ND - Namensnennung, nicht kommerziell, keine Bearbeitungen 4.0 International |
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Externe Anmerkung: | Bibliographieeintrag der Originalveröffentlichung/Quelle |
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