Author/Authors :
Gao، نويسنده , , J. and Heeger، نويسنده , , A.J. and Lee، نويسنده , , Jy-Yeon Kim، نويسنده , , C.Y.، نويسنده ,
Abstract :
Polypyrrole (PPy) films processed from solution have been used as semi-transparent anodes in polymer light-emitting diodes. An external quantum efficiency of 0.5% was achieved with poly (2-methoxy,5-(2′-ethyl-hexyloxy)-1,4-phenylene-vinylene) (MEH—PPV) as the luminescent polymer. The hole-injection potential barrier between PPy and MEH—PPV, as determined by Fowler—Nordheim analysis, is≈ 0.23 eV.
