Jöckel, Dennis Michael ; Yoon, Songhak ; Frebel, Alexander ; Neguse, Samuel Meles ; Rossa, Jürgen Dieter ; Bett, Alexander Jürgen ; Schubert, Martin ; Widenmeyer, Marc ; Balke-Grünewald, Benjamin ; Weidenkaff, Anke (2024)
Solar degradation and stability of lead‐free light absorber Cs2AgBiBr6 in ambient conditions.
In: Advanced Photonics Research, 5 (5)
doi: 10.1002/adpr.202300269
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
As numerous studies on highly efficient perovskite solar cells have been conducted on lead-based light absorbers, such as MAPbI3 and FAPbI3, increasing concerns are rising regarding toxicity and stability issues. One of the most prominent and promising lead-free alternatives is the double-perovskite Cs2AgBiBr6, which is well-suited for multi-junction solar cells considering its relatively large indirect bandgap of around 1.95–2.05 eV. Despite distinctive reports on its performance under ambient conditions, the demonstrated stability has not yet been conclusively clarified. Within this study, the degradation behavior of Cs2AgBiBr6 single crystals is investigated under different ambient environments, such as AM1.5g solar irradiation, aquatic conditions, and humidity. The corresponding samples are analyzed by using Raman, UV–vis, energy-dispersive X-Ray, and micro-photoluminescence spectroscopies together with X-Ray diffraction. High intrinsic stability of Cs2AgBiBr6 in ambient conditions and severe degradation in aquatic conditions are observed. Furthermore, surface morphology alterations are found during the simulated solar irradiation indicating photo-accelerated degradation behavior. In the results of this study, it is clearly implied that intense research efforts need to be put into sealing the Cs2AgBiBr6 layer in solar cells with the goal of protecting it from humidity and water intrusion simultaneously, therefore avoiding photo-accelerated degradation.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Jöckel, Dennis Michael ; Yoon, Songhak ; Frebel, Alexander ; Neguse, Samuel Meles ; Rossa, Jürgen Dieter ; Bett, Alexander Jürgen ; Schubert, Martin ; Widenmeyer, Marc ; Balke-Grünewald, Benjamin ; Weidenkaff, Anke |
| Art des Eintrags: | Bibliographie |
| Titel: | Solar degradation and stability of lead‐free light absorber Cs2AgBiBr6 in ambient conditions |
| Sprache: | Englisch |
| Publikationsjahr: | Mai 2024 |
| Verlag: | Wiley-VCH |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Advanced Photonics Research |
| Jahrgang/Volume einer Zeitschrift: | 5 |
| (Heft-)Nummer: | 5 |
| DOI: | 10.1002/adpr.202300269 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | As numerous studies on highly efficient perovskite solar cells have been conducted on lead-based light absorbers, such as MAPbI3 and FAPbI3, increasing concerns are rising regarding toxicity and stability issues. One of the most prominent and promising lead-free alternatives is the double-perovskite Cs2AgBiBr6, which is well-suited for multi-junction solar cells considering its relatively large indirect bandgap of around 1.95–2.05 eV. Despite distinctive reports on its performance under ambient conditions, the demonstrated stability has not yet been conclusively clarified. Within this study, the degradation behavior of Cs2AgBiBr6 single crystals is investigated under different ambient environments, such as AM1.5g solar irradiation, aquatic conditions, and humidity. The corresponding samples are analyzed by using Raman, UV–vis, energy-dispersive X-Ray, and micro-photoluminescence spectroscopies together with X-Ray diffraction. High intrinsic stability of Cs2AgBiBr6 in ambient conditions and severe degradation in aquatic conditions are observed. Furthermore, surface morphology alterations are found during the simulated solar irradiation indicating photo-accelerated degradation behavior. In the results of this study, it is clearly implied that intense research efforts need to be put into sealing the Cs2AgBiBr6 layer in solar cells with the goal of protecting it from humidity and water intrusion simultaneously, therefore avoiding photo-accelerated degradation. |
| Freie Schlagworte: | Cs₂AgBiBr₆, lead‐free photovoltaics, perovskite solar cells, stability studies |
| ID-Nummer: | Artikel-ID: 2300269 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Werkstofftechnik und Ressourcenmanagement |
| Hinterlegungsdatum: | 22 Mai 2024 05:24 |
| Letzte Änderung: | 17 Sep 2024 06:20 |
| PPN: | 518464431 |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Solar Degradation and Stability of Lead‐Free Light Absorber Cs₂AgBiBr₆ in Ambient Conditions. (deposited 16 Sep 2024 11:38)
- Solar degradation and stability of lead‐free light absorber Cs2AgBiBr6 in ambient conditions. (deposited 22 Mai 2024 05:24) [Gegenwärtig angezeigt]
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