The present invention relates to a nanometer
ceramic solar film. According to the nanometer
ceramic solar film, a firs layer
titanium dioxide film, a second layer
titanium nitride film and a third
titanium dioxide film are sequentially plated on a surface of a substrate PET through magnetron
sputtering, wherein a thickness of the substrate PET is 23-50 mum, a thickness of the first layer
titanium dioxide film is 26-38 nm, a thickness of the second layer
titanium nitride film is 20-26 nm, and a thickness of the third layer
titanium dioxide film is 26-38 nm. The nanometer
ceramic solar film of the present invention has the following characteristics that: good spectral selective permeability,
high transmittance in a visible light region, and
high reflectivity in an
infrared region are provided, wherein
infrared rays are blocked so as to reduce heat source, such that
thermal insulation is achieved while
transmittance on visible light is not affected; and
titanium dioxide and
titanium nitride have high
chemical stability at a
room temperature, are not easily oxidized, and do not react with
oxygen, water, steam,
hydrochloric acid,
sulfuric acid and the like under normal circumstances, such that performances are stable,
fading and discoloration can not be generated, and a service life is long.