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Because of excimer formation,
the emission characteristics of blends of
various polymers and minute amounts of
photoluminescent oligo(phenylene vinylene)s (OPV)
such as - as shown here - C2-RY8 depend on the extent of aggregation of the
luminescent guest molecules, which in turn can
depend on a variety of external stimuli.
This effect may be exploited
for the design of molecular sensors that are
easily integrated into a polymer of interest and
allow one to monitor mechanical deformation or -
as shown in the above picture of a TOPAS/sensor
blend - exposure above a threshold temperature.
For more information
click here.
Picture: Connor Evans. |
