The optical properties and microstructures of several black butterfy wings is investigated. The enhancement of optical absorption raised by the microstructures of black butterfly wings is universally observed. A general mechanism of this enhancement is proposed, based on which a bio-inspired ultra-black coating is fabricated with SiO2@C microspheres as absorbent. Through optimizing the coating formulation, the highest solar absorption ratio of the bio-inspired ultra-black coating is 0.9773, which is evidently higher than that of the traditional black coating with similar chemical ingredient.
PAN Lei
,
LI Na
,
ZHANG Dayong
,
SUN Yunyong
,
LI Yao
. Preparation and characterization of a bio-inspired ultra-black coating[J]. Science & Technology Review, 2016
, 34(18)
: 66
-69
.
DOI: 10.3981/j.issn.1000-7857.2016.18.006
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