Title of article
Electroluminescence and photoluminescence efficiency of poly(p-phenylenevinylene) derivatives
Author/Authors
Staring، نويسنده , , E.G.J. and Demandt، نويسنده , , R.C.J.E. and Braun، نويسنده , , D. and Rikken، نويسنده , , G.L.J. and Kessener، نويسنده , , Y.A.R.R. and Venhuizen، نويسنده , , A.H.J. and van Knippenberg، نويسنده , , M.M.F. and Bouwmans، نويسنده , , M.، نويسنده ,
Issue Information
دوماهنامه با شماره پیاپی سال 1995
Pages
2
From page
2179
To page
2180
Abstract
Alkoxy, alkyl, and cyano derivatives of poly(p-phenylenevinylene) [PPV] are used as the emissive layers in light-emitting diodes [LEDs] to obtain luminescence from red to blue. We present the luminescence efficiency for these soluble PPV derivatives. comparing the photoluminescence [PL] yields with the electroluminescence [EL] yields. PL efficiency increases with the fraction of non-conjugated units. EL efficiency depends not only on the radiative recombination efficiency of the emitting material but also on carrier transport to and within the material. Efforts to improve the efficiency and long term stability of these polymer LEDs are challenged by efficient and balanced carrier injection.
Journal title
Synthetic Metals
Serial Year
1995
Journal title
Synthetic Metals
Record number
2069726
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