- Titel
- Interdot Lead Halide Excess Management in PbS Quantum Dot Solar Cells
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:14-qucosa2-882316
- Quellenangabe
- Advanced energy materials
Erscheinungsjahr: 2022
Jahrgang: 12
Heft: 45
Seiten: 1-10
ISSN: 1614-6840 - Erstveröffentlichung
- 2022
- Abstract (EN)
- Light-harvesting devices made from lead sulfide quantum dot (QD) absorbers are one of the many promising technologies of third-generation photovoltaics. Their simple, solution-based fabrication, together with a highly tunable and broad light absorption makes their application in newly developed solar cells, particularly promising. In order to yield devices with reduced voltage and current losses, PbS QDs need to have strategically passivated surfaces, most commonly achieved through lead iodide and bromide passivation. The interdot spacing is then predominantly filled with residual amorphous lead halide species that remain from the ligand exchange, thus hindering efficient charge transport and reducing device stability. Herein, it is demonstrated that a post-treatment by iodide-based 2-phenylethlyammonium salts and intermediate 2D perovskite formation can be used to manage the lead halide excess in the PbS QD active layer. This treatment results in improved device performance and increased shelf-life stability, demonstrating the importance of interdot spacing management in PbS QD photovoltaics.
- Andere Ausgabe
- Link zum Artikel, der zuerst in der Zeitschrift „Advanced energy materials” erschienen ist.
DOI: 10.1002/aenm.202202994 - Freie Schlagwörter (DE)
- PbS-Quantenpunkt-Solarzellen, Lichtsammler, PbS-QD-Photovoltaik, 2-Phenylethlyammoniumsalze auf Iodidbasis
- Freie Schlagwörter (EN)
- PbS Quantum Dot Solar Cells, Light-harvesting, PbS QD photovoltaics, iodide-based 2-phenylethlyammonium salts
- Klassifikation (DDC)
- 600
- 050
- Verlag
- Wiley-VCH GmbH, Weinheim
- Förder- / Projektangaben
- European Commission (EC)
H2020 | ERC | ERC-STG
Revealing the electronic energy landscape of multi-layered (opto)electronic devices
(ENERGYMAPS)
ID: 714067 - Deutsche Forschungsgemeinschaft (DFG)
Die Physik der Degradation in Organischen, Nanokristall- und Hybrid-Solarzellen
(Proces)
ID: VA 991/2-1 - Deutsche Forschungsgemeinschaft (DFG)
Hohe elektrische Felder an heterogenen Grenzflächen organischer Halbleiter
(HEFOS)
ID: FI 2449/1-1 - Version / Begutachtungsstatus
- publizierte Version / Verlagsversion
- URN Qucosa
- urn:nbn:de:bsz:14-qucosa2-882316
- Veröffentlichungsdatum Qucosa
- 22.01.2024
- Dokumenttyp
- Artikel
- Sprache des Dokumentes
- Englisch
- Lizenz / Rechtehinweis
CC BY 4.0