M. Halim et al., MEASUREMENT OF TIME-DEPENDENT QUANTUM YIELD OF POLY(P-PYRIDINE) AND POLY(P-PHENYLENEVINYLENE), Synthetic metals, 84(1-3), 1997, pp. 951-952
In this payer we report the absolute photoluminescence quantum yield o
f poly(p-pyridine) (PPy), which is a promising electroluminescent poly
mer. The influence of vacuum and air on the quantum yield of the PPy i
s investigated. We find a significant decay of the efficiency under va
cuum whereas it is stable in air. We compare the results with those ob
tained on poly(p-phenylenevinylene)(PPV).