Selective absorber amorphous alloys and devices

Details Selective absorber amorphous alloys and devices Selective absorber amorphous alloys and devices

F - Mech Eng,Light,Heat,Weapons

24

J

126/11.21

F24J 2/48 (2006.01) F24J 2/46 (2006.01)

Patent

CA 1242367

ABSTRACT OF THE DISCLOSURE There is disclosed a new and improved mate- rial and device for improved selective absorption of light energy for use in photothermal applica- tions and a method and apparatus for manufacturing same. The device includes a layer of thermal infra- red radiation reflecting material containing a transition metal or stainless steel. A solar ra- diation absorbing layer is deposited over the in- frared reflecting layer. This layer comprises either amorphous boron or an amorphous alloy of boron and silicon, boron and germanium or boron and molybdenum. Finally, a solar radiation antireflecting ma- terial layer is deposited over the solar radiation absorbing layer. This layer comprises an amor- phous alloy of nitrogen and either silicon or boron.

437433

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