Spectrally selective coatings for optical surfaces

US10371416B2 · kind B2 · utility

Assignee

• The Regents of the University of California · US

Inventors

• Sungho Jin · Millington, US
• Renkun Chen · San Diego, US
• Zhaowei Liu · Qingdao, CN
• Tae Kyoung Kim · Seojong-myeon, KR

Key dates

• Filing date: May 6, 2013
• Grant date: Aug 6, 2019
• Expiry date: Oct 16, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24909
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Techniques, systems, devices and materials are disclosed for spectrally selective coatings for optical surfaces having high solar absorptivity, low infrared emissivity, and strong durability at elevated temperatures. In one aspect, a spectrally selective coating includes a substrate formed of a light absorbing material, and a composite material formed over the substrate and including nanoparticles dispersed in a dielectric material, in which the composite material forms a coating capable of absorbing solar energy in a selected spectrum and reflecting the solar energy in another selected spectrum.