01704nas a2200157   4500008004100000022001400041245012100055210006900176260007100245300001400316490000800330520103800338100002601376700001701402856012701419       2014                        eng d  a1520-610600aBlue, green, and orange-red emission from Polystyrene microbeads for solid-state white-light and multicolor emission0 aBlue green and orangered emission from Polystyrene microbeads fo  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcAUG  a9467-94750 v1183 a<p>Solid-state white-light emission was achieved from polystyrene (PS) microbeads incorporated with fluorophores based on perylene bisimide (PBITEG) and oligo(p-phenylenevinylene) (OPV) as acrylic cross-linkers. The PS beads incorporated with only PBITEG gave intense orange-red emission; PS incorporated with OPV exhibited blue-emission, whereas a series of polymers incorporating both cross-linkers exhibited varying shades of white-light emission. One of the PS samples, PS-PBITEG-6.25-OPV-4.28 (PBITEG incorporation: 6.25 X 10(-7) mole; OPV incorporation: 4.28 x 10(-7) mol), exhibited pure white-light emission in the powder form with CIE coordinates (0.33, 0.32). The rigid aromatic cross-linkers were incorporated into the PS backbone in a two-stage dispersion polymerization to afford PS beads in the size range 2 to 3 mu m. The incorporation of fluorophores as cross-linkers enabled covalent attachment of the dye to the polymer backbone, avoiding dye leakage besides avoiding aggregation-induced fluorescence quenching.</p>1 aSonawane, Swapnil, L.1 aAsha, S., K.  uhttps://library.ncl.res.in/content/blue-green-and-orange-red-emission-polystyrene-microbeads-solid-state-white-light-and-0