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Pixelated patterns of photonic hemispheres are prepared by self-organization of silica particles in photocurable hemispherical droplets. Especially, RGB-color patterns with high coverage are fabricated by spotting 3× without coalescence and multicolored hemispheres are prepared by controlled coalescence. In addition, monodisperse photonic balls are prepared through the evolution of wettability of the suspension droplets.
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Kim et al. (2008) studied this question.
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