230 fold fluorescence enhancement by 3D Rhodamine B coated polystyrene photonic crystals

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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.

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Journal: TechConnect Briefs
Volume: 4, Advanced Manufacturing, Electronics and Microsystems: TechConnect Briefs 2015
Published: June 14, 2015
Pages: 135 - 138
Industry sectors: Advanced Materials & Manufacturing | Sensors, MEMS, Electronics
Topic: Photonic Materials & Devices
ISBN: 978-1-4987-4730-1