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Title: 3D photonic bandgap materials fabricated self-assembled colloidal microspheres as the template
Keywords: Photonic bandgap materials, self-assembly, colloidal crystals, heterogeneous structures, surface patterning
Issue Date: 19-Apr-2006
Citation: ZHOU ZUOCHENG (2006-04-19). 3D photonic bandgap materials fabricated self-assembled colloidal microspheres as the template. ScholarBank@NUS Repository.
Abstract: In this thesis work, self-assembly method was used to fabricate three-dimensional (3D) photonic bandgap (PBG) materials (also known as 3D photonic crystals). A flow-controlled vertical deposition (FCVD) method was developed for self assembly of colloidal miscrospheres into colloidal crystals of uniform thickness in large domains. In addition, the FCVD method was shown to work well for infiltration of the colloidal crystals with another material. On the other hand, using a layer-by-layer growth method, size and composite multilayer structures were fabricated with a primary objective of fabricating photonic crystal heterostructures. Using the nanosphere lithography method, various surface patterns on substrates were explored. The patterns were employed as the masks to fabricate ordered nanopits on the substrates. Importantly, insertion of artificial defects in the interior of a 3D photonic crystal was successfully demonstrated by combining the self assembly method with traditional lithography technique.
Appears in Collections:Ph.D Theses (Open)

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