High efficiency solution infiltration routes to thin films with photonic properties

A chemical bath deposition (CBD) method has been developed to prepare three-dimensionally-ordered macroporous films of CdS and TiO 2 , using colloidal crystals as templates. A series of sequential, short infill/rinse/anneal steps are employed to effect complete infiltration of SiO 2 (opal) thin film...

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Bibliographic Details
Published inJournal of experimental nanoscience Vol. 1; no. 2; pp. 221 - 233
Main Authors Zhou, L., Boyle, D. S., Govender, K., O'brien, P.
Format Journal Article
LanguageEnglish
Published Taylor & Francis Group 01.06.2006
Subjects
CBD
Infiltration
Inverse opals
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Summary:A chemical bath deposition (CBD) method has been developed to prepare three-dimensionally-ordered macroporous films of CdS and TiO 2 , using colloidal crystals as templates. A series of sequential, short infill/rinse/anneal steps are employed to effect complete infiltration of SiO 2 (opal) thin films with CdS or TiO 2 . Removal of templates allows fabrication of macroporous inverse replica structures that exhibit periodic modulation of dielectric behaviour and have potential for use in photonic applications. A study of the photonic properties of films indicates that the multi-step CBD method is a useful approach for infiltration of opal interstices.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1745-8080
1745-8099
DOI:10.1080/17458080600622107