title: Defect engineering in sedimentary colloidal photonic crystals.
abstract: In this paper, lithographic methods are successfully employed to create growth templates for colloidal self-assembly, enabling the inclusion of crystallographic defects at predetermined positions. It is shown that through smart template design stacking faults can be grown predictably into face centered cubic structures. More interestingly, by precise guiding of the stacking faults hollow intergrowth channels can be grown at predetermined lateral and vertical positions. The mechanisms involved in defect growth are promising for extension of this technique to more complex crystal structures, such as the diamond structure, as well as to more complex faults, including corners and t-junctions.
authors.affiliation: Van 't Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute for Nanomaterials Science, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands.
authors.forename: Jan
authors.initials: J
authors.lastname: Hilhorst
authors.forename: D A Matthijs
authors.initials: DA
authors.lastname: de Winter
authors.forename: Joost R
authors.initials: JR
authors.lastname: Wolters
authors.forename: Jan Andries
authors.initials: JA
authors.lastname: Post
authors.forename: Andrei V
authors.initials: AV
authors.lastname: Petukhov
mesh_terms: D003102:Colloids / Q000138:chemical synthesis* / Q000737:chemistry; D003461:Crystallography; D010316:Particle Size; D011522:Protons; D013499:Surface Properties
chemical_list: D003102:Colloids; D011522:Protons