Lateral control of the fabrication of selectively inverted opals using polymer–silica composites is reported. Poly(methyl methacrylate)–SiO2 composite opals obtained by chemical vapor deposition can be patterned by electron-beam lithography and developed to produce silica inverse opals with well-defined extrinsic defects (see Figure).
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Juárez et al. (2004) studied this question.
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