Patent ID: 11899227
Assignee: NINGBO RADI-COOL ADVANCED ENERGY TECHNOLOGIES CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC G  B  C | IPC C  G

Claim 15:
16. A method for preparing a solar reflecting film, comprising:
providing a substrate; and
forming a functional layer on the substrate by magnetron sputtering method, to obtain the solar reflecting film, wherein the functional layer comprises a first reflecting layer, a barrier layer and a second reflecting layer stacked on the substrate in order, and the barrier layer comprises a first barrier layer and a second barrier layer stacked on each other,
wherein the method further comprises forming a third barrier layer between the first barrier layer and the second barrier layer, a material of the third barrier layer is metal fluoride, inorganic non-metal oxide, metal oxide, metal nitride, semiconductor doping compound, or a combination thereof, and
a material of the third barrier layer is at least partially different from that of the first barrier layer and that of the second barrier layer.