Optical Properties of the 3-D Composite Photonic Crystals Prepared by Modified Dip-Coating and Coating First Method
3-D composite photonic crystals were fabricated on ITO substrates and slide glass substrates by two different methods, modified dip-coating and coating first method. It was found that there were lots of line defects existing in the composite films fabricated by dip-coating method but few existing in the composite films fabricated by coating first method. The reflectance spectra were measured by UV-vis spectrometry and revealed that all the fabricated photonic crystals exhibit a photonic band gap in the normal direction. The optical properties of the core-shell structure strongly depended on the intrinsic defects in the films.
Shiquan Liu and Min Zuo
G. Y. Yan et al., "Optical Properties of the 3-D Composite Photonic Crystals Prepared by Modified Dip-Coating and Coating First Method", Advanced Materials Research, Vols. 306-307, pp. 255-260, 2011