Fabrication of Silica and Titania Inverse Opals via Supercritical Deposition 


Vol. 18,  No. 1, pp. 38-42, Mar.  2012


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  Abstract

Photonic crystals (PCs) are highly ordered porous materials which have been much attention because of its potential for controlling the light sauces. There are many methods for synthesizing this kind of materials among them we chose the supercritical deposition. With this method the reactants can easily infiltrate into the complex structure. In this paper, supercritical carbon dioxide (scCO2) was used as a reaction medium, which is known as a sustainable solvent due to its nontoxic and noninflammable characteristics. We coated the colloidal template with metal alkoxide by using scCO2 and then obtained macro-porous inverse opals. The reaction was carried out at 40 ℃ and 80 bar. We synthesized two different inverse opals which called silica and titania inverse opals by use of tetraethyl orthosilicate (TEOS) and titanium isopropoxide (TTIP) as a precursor, respectively.

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  Cite this article

[IEEE Style]

Y. HM and L. JS, "Fabrication of Silica and Titania Inverse Opals via Supercritical Deposition," Clean Technology, vol. 18, no. 1, pp. 38-42, 2012. DOI: .

[ACM Style]

Yu HM and Lim JS. 2012. Fabrication of Silica and Titania Inverse Opals via Supercritical Deposition. Clean Technology, 18, 1, (2012), 38-42. DOI: .

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pISSN : 1598 - 9712
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한국연구재단 등재학술지