Abstract
Efficient photothermal conversion of solar energy requires high absorption at wavelengths λ≲2 μm and low absorption at λ≳2 μm. This absorptance profile can be achieved by coatings consisting of ultrafine metal particles in an insulating matrix. I compare available optical data for concentrated gold cermet films with calculations based on the non-self-consistent Maxwell Garnett theory and on the self-consistent Bruggeman theory. The latter is found to be superior for MgO+25 vol% Au and for Al2O3+18 vol% Au, whereas no firm conclusions can be drawn for MgF2+Au.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
