Patterned colloidal photonic domes and balls derived from viscous photocurable suspensions

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 3x 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.