METAL NANO-MICRO-PROTRUSION BLACK BODY AND METHOD FOR PRODUCING SAME

WIPO Patent Application WO/2014/021072

A1

Provided are a metal nano-micro-protrusion black body that can absorb light in a wide wavelength range and can selectively adjust a light absorbing orientation, and a method for producing the same. Provided is a metal nano-micro-protrusion black body that includes a substrate made of zinc or a substrate having a zinc layer on a surface thereof, and a multiplicity of nano-micro protrusions that are principally made of zinc and grow from and are formed of this substrate, wherein the metal nano-micro-protrusion black body has the following characteristics: the nano-micro protrusion has a shape with a round cross-section such as a conical or cylindrical shape, and has an aspect ratio of 3 or more, the aspect ratio being a ratio of the height of the nano-micro protrusion with respect to the diameter thereof at the bottom of 3 μm or less; and the metal nano-micro-protrusion black body absorbs 95 % or more of ultraviolet light, visible light, or infrared light that is incident at an angle within 30° with respect to the growth direction of the nano-micro protrusions. Also provided is a method for producing the nano-micro-protrusion black body.

TANAKA SHUNICHIRO (JP)
CHIBA MASAKI (JP)

PCT/JP2013/068964

February 06, 2014

July 11, 2013

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UNIV TOHOKU NAT UNIV CORP (JP)

G02B5/00; B82Y20/00; B82Y30/00; B82Y40/00; C23C26/00

WO2010026853A1

2010-03-11

JP2011056638A

2011-03-24

EGUCHI TOYOAKI (JP)
Eguchi Toyoake (JP)

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