A novel side chain liquid crystalline (LC) polyacrylate (1P) containing highly conjugated bis-tolane side groups was synthesized and used for polymer light emitting diodes application. Polymer 1P shows a nematic phase at room temperature. It exhibits a UV absorption peak at 330nm and emits a blue light at 425 nm. Polyimide (PI), polyaniline (PA) and poly(3,4diethylenedioxythiophene) (PEDOT) were used as alignment materials for polymer 1P, The photoluminescence dichroic ratios of 1P on rubbed PI, PA and PEDOT films are 10.4, 8.3 and 7.3, respectively. The electroluminescence dichroic ratio of IP aligned on a PEDOT film is 6.1.
|Number of pages||5|
|Journal||Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers|
|Issue number||3 A|
|State||Published - 1 Mar 2002|
- Bis-tolane liquid crystal
- Polarized emission
- Side chain LC polymer