Double stacking faults in convectively assembled crystals of colloidal spheres

Jan Hilhorst, Vera V. Abramova, Alexander Sinitskii, Nina A. Sapoletova, Kirill S. Napolskii, Andrey A. Eliseev, Dmytro V. Byelov, Natali A. Grigoryeva, Alexandra V. Vasilieva, Wim G. Bouwman, Kristina Kvashnina, Anatoly Snigirev, Sergey V. Grigoriev, Andrei V. Petukhov

Research output: Contribution to journalArticlepeer-review

48 Scopus citations


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° 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.

Original languageEnglish (US)
Pages (from-to)10408-10412
Number of pages5
Issue number17
StatePublished - Sep 1 2009
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry


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