Fabrication of two‐dimensional photonic quasi‐crystals with 18‐ and 36‐fold by holography for solar application

Abstract

Holographic lithography has been widely used to the realisation of complex photonic structures such as photonic crystal and quasi-photonic crystals. Dual-beam multi-exposure holographic technique was adopted for the fabrication of 18-fold and 36-fold sub-microscopic rotational symmetric structures; the fabricated photonic quasi-crystals examined by laser diffraction pattern, optical and scanning electron microscopes. Here, the authors have fabricated photonic quasi-crystals in photoresist and the structure was transformed into metal, the transferred structure in metal could act as a substrate/or back reflector for the thin film solar cell. Further work on concentration of solar light by photonic quasi-crystals is progressing.