Gd. Hale et al., Enhancing the active lifetime of luminescent semiconducting polymers via doping with metal nanoshells, APPL PHYS L, 78(11), 2001, pp. 1502-1504
We report a dramatic, concentration-dependent decrease in the rate of photo
-oxidation of semiconducting polymers due to the addition of small amounts
of metal nanoshells to the polymer. In each case, the nanoshell resonances
are tuned to the triplet exciton-ground state energy of the polymer. The na
noshell dopants slow the oxidation rate yet do not affect the photoluminesc
ent properties of the polymers to which they have been added. (C) 2001 Amer
ican Institute of Physics.