Summary
This work explores electrospinning as a route to photoluminescent polymer nanofibres by doping poly(methyl methacrylate) (PMMA) with the laser dye rhodamine B (RhB). PMMA solutions containing different concentrations of rhodamine B were electrospun into nanofibre mats, and the influence of dye loading on fibre morphology and, crucially, on the optical behaviour was studied. The authors characterised the fibres structurally and measured their absorption and photoluminescence, showing that the dye remains optically active once embedded in the electrospun PMMA matrix. Incorporating a laser dye into a flexible, high-surface-area nanofibre form is attractive for photonic and optical applications such as fluorescent coatings, sensors and potential solid-state gain media — and the study demonstrates that electrospinning is a viable, low-cost processing method for such optically functional fibres.