Double stacking faults in convectively assembled crystals of colloidal spheres

Using microradian X-ray diffraction, we investigated the crystal structure of convectively assembled colloidal photonic crystals over macroscopic (0.5 mm) distances. Through adaptation of Wilson's theory for X-ray diffraction, we show that certain types of line defects that are often observed i...

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Bibliographische Detailangaben
Veröffentlicht in:	Langmuir : the ACS journal of surfaces and colloids. - 1992. - 25(2009), 17 vom: 01. Sept., Seite 10408-12
1. Verfasser:	Hilhorst, Jan (VerfasserIn)
Weitere Verfasser:	Abramova, Vera V, Sinitskii, Alexander, Sapoletova, Nina A, Napolskii, Kirill S, Eliseev, Andrey A, Byelov, Dmytro V, Grigoryeva, Natali A, Vasilieva, Alexandra V, Bouwman, Wim G, Kvashnina, Kristina, Snigirev, Anatoly, Grigoriev, Sergey V, Petukhov, Andrei V
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2009
Zugriff auf das übergeordnete Werk:	Langmuir : the ACS journal of surfaces and colloids
Schlagworte:	Journal Article

Beschreibung
Zusammenfassung:	Using microradian X-ray diffraction, we investigated the crystal structure of convectively assembled colloidal photonic crystals over macroscopic (0.5 mm) distances. Through adaptation of Wilson's theory for X-ray diffraction, we show that certain types of line defects that are often observed in scanning electron microscopy images of the surface of these crystals are actually planar defects at 70.5 degrees angles with the substrate. The defects consist of two parallel hexagonal close-packed planes in otherwise face-centered cubic crystals. Our measurements indicate that these stacking faults cause at least 10% of stacking disorder, which has to be reduced to fabricate high-quality colloidal photonic crystals
Beschreibung:	Date Completed 03.11.2009 Date Revised 26.08.2009 published: Print Citation Status PubMed-not-MEDLINE
ISSN:	1520-5827
DOI:	10.1021/la900983v