期刊
SMALL
卷 15, 期 23, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201900931
关键词
hollow carbon silica; Mie scattering; photonic glass; self-assembly
类别
资金
- National Research Foundation - Korean Government [NRF-2017M3A7B8065528, NRF-2014M3A9B8023471, NRF-2017R1A5A1070259]
- Harvard MRSEC under National Science Foundation [DMR-1420570]
Hollow carbon-silica nanospheres that exhibit angle-independent structural color with high saturation and minimal absorption are made. Through scattering calculations, it is shown that the structural color arises from Mie resonances that are tuned precisely by varying the thickness of the shells. Since the color does not depend on the spatial arrangement of the particles, the coloration is angle independent and vibrant in powders and liquid suspensions. These properties make hollow carbon-silica nanospheres ideal for applications, and their potential in making flexible, angle-independent films and 3D printed films is explored.
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