E. Eftekhari, X. Li, I.S. Cole, Q. Li
Griffith University, Australia
pp. 135 - 138
Keywords: photonic crystal, colloidal crystal, fluorescence enhancement, particle coating
We report a 230-fold fluorescence enhancement with fluorescent polystyrene based three-dimensional (3D) colloidal photonic crystals (F-CPhCs) that can be readily fabricated over large areas. A simple and reproducible method was developed to synthesise novel fluorescent polystyrene spheres. Fluorescent polystyrene spheres were prepared through swelling-diffusion approach by the addition of a Rhodamine B (RhB) as a fluorescent dye in dimethylformamide (DMF) to an aqueous suspension of 310 nm mono dispersed polystyrene spheres (PS). Our resonant F-CPhCs, which can be fabricated through facile self-assembly route with inexpensive materials, should find immediate applications in illumination, light harvesting, and chemical/biochemical sensing.