Journal
ADVANCED MATERIALS
Volume 29, Issue 23, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201606894
Keywords
core-shell capsules; handedness of light; liquid crystals; microfluidics; triple-emulsion drops
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Funding
- Korea Research Institute of Chemical Technology (KRICT) creative project [KK-1607-C01]
- NRF grant - Ministry of Science, ICT and Future Planning (MSIP) [NRF-2014R1A2A2A01005813, NRF-2016R1E1A2913875]
- National Research Council of Science & Technology (NST), Republic of Korea [KK1702-D00] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2016R1E1A2913875] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Photonic microcapsules with onion-like topology are microfluidically designed to have cholesteric liquid crystals with opposite handedness in their core and shell. The microcapsules exhibit structural colors caused by dual photonic bandgaps, resulting in a rich variety of color on the optical palette. Moreover, the microcapsules can switch the colors from either core or shell depending on the selection of light-handedness.
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