Ligand engineering for improving the stability and optical properties of CsPbI3 perovskite nanocrystals

Kurzanzeige
dc.contributor.authorYuce Cakir, Hurriyet
dc.contributor.authorYalcinkaya, Yenal
dc.contributor.authorDemir, Mustafa M.
dc.date.accessioned2025-01-08T11:56:03Z
dc.date.available2025-01-08T11:56:03Z
dc.date.issued2024-06
dc.description.abstractInorganic lead halide perovskite nanocrystals (NCs) have recently become one of the research topics for optoelectronic applications due to their excellent photophysical properties. Despite their notable thermal stability over organic-inorganic halide perovskites, CsPbI3 NCs suffer from the phase instability of α-CsPbI3 phase at room temperature and under ambient conditions. Here, the effects of 4-Hydroxybenzoic acid (4-HBA) as an additive to standard oleic acid – oleylamine pair on the stability and optical properties of CsPbI3 perovskite NCs are discussed. 4-HBA addition into perovskite NC systems causes a compressive strain on perovskite lattice, which leads to the formation of a mixed phase α- and γ-CsPbI3 phases while pristine perovskite has α-CsPbI3 phase. Time-dependent stability of the perovskite NCs was tested under an ethanol (EtOH) medium. After EtOH exposure of the perovskite NCs, CsPbI3 NCs transformed to non-perovskite phase in 1 h while 4-HBA added CsPbI3 NCs still have perovskite phase after 48 h. In addition to the improved optical properties of the perovskite NCs, 4-HBA addition remarkably improves CsPbI3 perovskite stability.
dc.description.versionpublisheddeu
dc.identifier.doi10.1016/j.optmat.2024.115420
dc.identifier.urihttps://kops.uni-konstanz.de/handle/123456789/71798
dc.language.isoeng
dc.subjectCsPbI3 nanocrystals
dc.subjectPerovskite
dc.subjectLigand engineering
dc.subjectStability
dc.subject.ddc530
dc.titleLigand engineering for improving the stability and optical properties of CsPbI<sub>3</sub> perovskite nanocrystalseng
dc.typeJOURNAL_ARTICLE
dspace.entity.typePublication
kops.citation.bibtex
@article{YuceCakir2024-06Ligan-71798,
  year={2024},
  doi={10.1016/j.optmat.2024.115420},
  title={Ligand engineering for improving the stability and optical properties of CsPbI<sub>3</sub> perovskite nanocrystals},
  volume={152},
  issn={0925-3467},
  journal={Optical Materials},
  author={Yuce Cakir, Hurriyet and Yalcinkaya, Yenal and Demir, Mustafa M.},
  note={Article Number: 115420}
}
kops.citation.iso690YUCE CAKIR, Hurriyet, Yenal YALCINKAYA, Mustafa M. DEMIR, 2024. Ligand engineering for improving the stability and optical properties of CsPbI3 perovskite nanocrystals. In: Optical Materials. Elsevier. 2024, 152, 115420. ISSN 0925-3467. eISSN 1873-1252. Verfügbar unter: doi: 10.1016/j.optmat.2024.115420deu
kops.citation.iso690YUCE CAKIR, Hurriyet, Yenal YALCINKAYA, Mustafa M. DEMIR, 2024. Ligand engineering for improving the stability and optical properties of CsPbI3 perovskite nanocrystals. In: Optical Materials. Elsevier. 2024, 152, 115420. ISSN 0925-3467. eISSN 1873-1252. Available under: doi: 10.1016/j.optmat.2024.115420eng
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kops.sourcefieldOptical Materials. Elsevier. 2024, <b>152</b>, 115420. ISSN 0925-3467. eISSN 1873-1252. Verfügbar unter: doi: 10.1016/j.optmat.2024.115420deu
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kops.sourcefield.plainOptical Materials. Elsevier. 2024, 152, 115420. ISSN 0925-3467. eISSN 1873-1252. Available under: doi: 10.1016/j.optmat.2024.115420eng
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source.identifier.issn0925-3467
source.periodicalTitleOptical Materials
source.publisherElsevier

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