Neguse, Samuel M. ; Yoon, Songhak ; Frebel, Alexander ; Jöckel, Dennis M. ; Widenmeyer, Marc ; Lange, Stefan ; Rosspeintner, Arnulf ; Ebbinghaus, Stefan G. ; Hagendorf, Christian ; Balke, Benjamin ; Weidenkaff, Anke (2024)
Tunable Optical Properties and the Role of Defects on the Carrier Lifetimes of Cs₃Sb₂I₉ Synthesized in Various Solvents.
In: Advanced Photonics Research, 2023, 4 (12)
doi: 10.26083/tuprints-00027248
Artikel, Zweitveröffentlichung, Verlagsversion
 | Es ist eine neuere Version dieses Eintrags verfügbar. |
Kurzbeschreibung (Abstract)
Pb‐free halide perovskites have recently attracted immense attention due to the number of advantages in their optical and electronic properties. However, tuning the optical bandgap with minimized amounts of point defects is a particularly challenging task in photovoltaics. It is pivotal to clearly understand the detailed relationship between the bandgap change with defect generation and charge carrier lifetime. In this study, Cs₃Sb₂I₉ crystals are synthesized by varied choice of solvents, namely, γ‐butyrolactone, a mixture of dimethylformamide and dimethyl sulfoxide, and hydroiodic acid. Although the same principles of decreasing solubility and crystallization are applied, Cs₃Sb₂I₉ crystals with different size and shape in microscopic and macroscopic scale are obtained during heating and cooling of the solution. The synthesized crystals are investigated using a combination of different spectroscopies including Raman, UV–visible, and time‐resolved photoluminescence. In the results, it is suggested that there is a strong relationship between Urbach energy and the lifetime of charge carriers. In this research, readily applicable practical principles and examples of how to control the defects for the advancement in Pb‐free perovskite photovoltaics are provided.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Neguse, Samuel M. ; Yoon, Songhak ; Frebel, Alexander ; Jöckel, Dennis M. ; Widenmeyer, Marc ; Lange, Stefan ; Rosspeintner, Arnulf ; Ebbinghaus, Stefan G. ; Hagendorf, Christian ; Balke, Benjamin ; Weidenkaff, Anke |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Tunable Optical Properties and the Role of Defects on the Carrier Lifetimes of Cs₃Sb₂I₉ Synthesized in Various Solvents |
| Sprache: | Englisch |
| Publikationsjahr: | 21 Mai 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | Dezember 2023 |
| Ort der Erstveröffentlichung: | Weinheim |
| Verlag: | Wiley-VCH |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Advanced Photonics Research |
| Jahrgang/Volume einer Zeitschrift: | 4 |
| (Heft-)Nummer: | 12 |
| Kollation: | 7 Seiten |
| DOI: | 10.26083/tuprints-00027248 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/27248 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | Pb‐free halide perovskites have recently attracted immense attention due to the number of advantages in their optical and electronic properties. However, tuning the optical bandgap with minimized amounts of point defects is a particularly challenging task in photovoltaics. It is pivotal to clearly understand the detailed relationship between the bandgap change with defect generation and charge carrier lifetime. In this study, Cs₃Sb₂I₉ crystals are synthesized by varied choice of solvents, namely, γ‐butyrolactone, a mixture of dimethylformamide and dimethyl sulfoxide, and hydroiodic acid. Although the same principles of decreasing solubility and crystallization are applied, Cs₃Sb₂I₉ crystals with different size and shape in microscopic and macroscopic scale are obtained during heating and cooling of the solution. The synthesized crystals are investigated using a combination of different spectroscopies including Raman, UV–visible, and time‐resolved photoluminescence. In the results, it is suggested that there is a strong relationship between Urbach energy and the lifetime of charge carriers. In this research, readily applicable practical principles and examples of how to control the defects for the advancement in Pb‐free perovskite photovoltaics are provided. |
| Freie Schlagworte: | Cs₃Sb₂I₉, defects, photovoltaics, Raman spectroscopy, time-resolved photoluminescence, Urbach energy |
| ID-Nummer: | Artikel-ID: 2300184 |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-272486 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie |
| 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: | 21 Mai 2024 13:46 |
| Letzte Änderung: | 22 Mai 2024 06:05 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
- Tunable Optical Properties and the Role of Defects on the Carrier Lifetimes of Cs₃Sb₂I₉ Synthesized in Various Solvents. (deposited 21 Mai 2024 13:46) [Gegenwärtig angezeigt]
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum