Invention Grant
- Patent Title: Spectrally selective solar absorbing coating and a method for making it
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Application No.: US15563710Application Date: 2016-01-20
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Publication No.: US10586879B2Publication Date: 2020-03-10
- Inventor: Jing Liu , Zhiqiang Sun , Zhongzhou Yang , Hong Wang
- Applicant: CHINA BUILDING MATERIALS ACADEMY
- Applicant Address: CN Chaoyang District Beijing
- Assignee: CHINA BUILDING MATERIALS ACADEMY
- Current Assignee: CHINA BUILDING MATERIALS ACADEMY
- Current Assignee Address: CN Chaoyang District Beijing
- Agency: Meunier Carlin & Curfman LLC
- Priority: CN201510158664 20150403; CN201510550161 20150901
- International Application: PCT/CN2016/071428 WO 20160120
- International Announcement: WO2016/155407 WO 20161006
- Main IPC: G06K7/10
- IPC: G06K7/10 ; H01L31/0216 ; C23C14/06 ; C23C28/00 ; F24S70/20 ; B32B15/18 ; B32B15/04 ; B32B9/00 ; F24S70/30 ; B32B9/04 ; B32B15/20 ; C03C17/36 ; C01B33/12 ; C01G37/02

Abstract:
A spectrally selective solar absorbing coating includes a multilayer stack including, from the substrate to the air interface: substrate (1), infrared reflective layer (2), barrier layer (3), composite absorbing layer (4) consisting of metal absorbing sublayer (4.1), metal nitride absorbing sublayer (4.2), and metal oxynitride absorbing sublayer (4.3), and antireflective layer (5). Therefore, the solar absorbing coating has good high and low temperature cycle stability and superior spectrum selectivity, with a steep transition zone between solar absorption and infrared reflection zones. It has a relatively high absorptance α>95%, and a low thermal emissivity ε ≤4%, PC (performance criterion) =−0.3. The solar absorbing multilayer stack can be obtained by reactively magnetron sputtering the metal target in argon or other inert gas with some amounts of gas containing oxygen or nitrogen or their combination.
Public/Granted literature
- US20180076342A1 SPECTRALLY SELECTIVE SOLAR ABSORBING COATING AND A METHOD FOR MAKING IT Public/Granted day:2018-03-15
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