Polarized electroluminescence from rubbing-aligned poly( p-phenylenevinylene)

In this paper the rubbing-alignment of a poly( p-phenylenevinylene) (PPV) precusor polymer is described. Highly oriented films have been prepared leading to a dichroic ratio of 18 for photoluminescence corresponding to an order-parameter S PL=(PL ∥−PL ⊥)/(PL ∥+PL ⊥) of 0.9. Two-layer LEDs with the c...

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Bibliographic Details
Published in:Synthetic metals 2000-06, Vol.111, p.177-180
Main Authors: Jandke, M, Strohriegl, P, Gmeiner, J, Brütting, W, Schwoerer, M
Format: Article
Language:English
Subjects:
Electroluminescence
Polarization
Poly( p-phenylenevinylene)
Rubbing alignment
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Summary:In this paper the rubbing-alignment of a poly( p-phenylenevinylene) (PPV) precusor polymer is described. Highly oriented films have been prepared leading to a dichroic ratio of 18 for photoluminescence corresponding to an order-parameter S PL=(PL ∥−PL ⊥)/(PL ∥+PL ⊥) of 0.9. Two-layer LEDs with the configuration ITO/PPV/Poly(phenylquinoxaline) (PPQ)/Al that have been fabricated show dichroic ratios for electroluminescence (EL ∥/EL ⊥) of 12 and a maximum brightness of 200 cd/m 2.
ISSN:0379-6779
1879-3290
DOI:10.1016/S0379-6779(99)00341-0