Size-Dependent Multiple Twinning in Nanocrystal Superlattices

Size-Dependent Multiple Twinning in Nanocrystal Superlattices

We report a size-dependent change in the morphology of superlattices self-assembled from monodisperse colloidal PbS nanocrystals. Superlattices of large (>7 nm) PbS nanocrystals showed a strong tendency to form multiply twinned face-centered cubic superlattices with decahedral and icosahedral sym...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of the American Chemical Society 2010-01, Vol.132 (1), p.289-296
Hauptverfasser: Rupich, Sara M, Shevchenko, Elena V, Bodnarchuk, Maryna I, Lee, Byeongdu, Talapin, Dmitri V
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:We report a size-dependent change in the morphology of superlattices self-assembled from monodisperse colloidal PbS nanocrystals. Superlattices of large (>7 nm) PbS nanocrystals showed a strong tendency to form multiply twinned face-centered cubic superlattices with decahedral and icosahedral symmetry, exhibiting crystallographically forbidden five-fold symmetry elements. On the other hand, superlattices of small (
ISSN:0002-7863
1520-5126
DOI:10.1021/ja9074425