We have investigated simulation, fabrication, 2D tungsten PhC for selective emitters of TPV system. Using finite difference time domain simulations, we designed and fabricated a 2D W PhC with cylindrical cavities of diameter from 490 nm to 555 nm, depth 1.5 μm. This structure may have a cutoff near the wavelength of 2.0 μm. A marked enhancement is expected in the emissivity of the 2D W PhC at wavelengths below 2.0μm compared to flat W. By using standard silicon processing techniques that are simple, efficient and easily scalable, selective emitting structure can be fabricated at lower cost and reduced complexity of individual components.

Date Published: 21 April 2016
PDF: 7 pages
Proc. SPIE 9885, Photonic Crystal Materials and Devices XII, 98851H (21 April 2016); doi: 10.1117/12.2227614

Published in SPIE Proceedings Vol. 9885:
Photonic Crystal Materials and Devices XII
Dario Gerace; Gabriel Lozano; Christelle Monat; Sergei G. Romanov, Editor(s)