Production of angular-selective films by interdiffusion for novel spectral responses

A. K. Moazzem M. Hossain; Geoffrey B. Smith

doi:10.1117/12.367564

11 October 1999 Production of angular-selective films by interdiffusion for novel spectral responses

A. K. Moazzem M. Hossain, Geoffrey B. Smith

Author Affiliations +

Proceedings Volume 3789, Solar Optical Materials XVI; (1999) https://doi.org/10.1117/12.367564
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

Aluminum is a good candidate for both solar and visible angular selectivity if used in metal/high refractive index insulator combinations, but angular selectivity was not observed in Al/TiO₂ films prepared in traditional co- deposition techniques. A new approach, deposition of a thin oblique Al layer, then oblique TiO₂, and later annealing in vacuum, was attempted and good angular selectivity observed in this material combination. In contrast to other angular selective films, these films showed angular selectivity in s-polarized light for the plane of incidence parallel to the TiO₂ columns. Spectral transmittance plots show the effects of Al content and annealing temperature of angular selectivity. SEM micrographs confirm the oblique columnar structure of the annealed complex, and inter-diffusion of Al through the TiO₂ columns.

Citation Download Citation

A. K. Moazzem M. Hossain and Geoffrey B. Smith "Production of angular-selective films by interdiffusion for novel spectral responses", Proc. SPIE 3789, Solar Optical Materials XVI, (11 October 1999); https://doi.org/10.1117/12.367564

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE