Charge injection from polyaniline-poly (methylmethacrylate) blends into poly (p-phenylene vinylene)
- 1 August 1998
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 84 (3) , 1445-1448
- https://doi.org/10.1063/1.368606
Abstract
Blends of polyanilinedoped with camphorsulfonic acid, (PAni–CSA), and poly(methylmethacrylate) (PMMA) are important candidates for hole injection electrodematerial in organic light emitting devices. We present a quantitative analysis of the potential barrier heights at interfaces between the PAni–CSA/PMMA blend and poly-(p-phenylene vinylene) (PPV). The barrier height determination, which is of crucial importance for radiant efficiency control of organic light emitting diodes, is based on temperature dependent tunneling current measurements. The value of the [PAni–CSA/PMMA]/PPV potential barrier height is found to be independent of the PAni–CSA concentration in the blend, except near the percolation threshold, where an increase in the barrier height value is observed.This publication has 17 references indexed in Scilit:
- Failure phenomena and mechanisms of polymeric light-emitting diodes: Indium–tin–oxide damageApplied Physics Letters, 1996
- Increased brightness and lifetime of polymer light-emitting diodes with polyaniline anodesSynthetic Metals, 1996
- The concept of secondary doping as applied to polyanilineSynthetic Metals, 1994
- Polyaniline as a transparent electrode for polymer light-emitting diodes: Lower operating voltage and higher efficiencyApplied Physics Letters, 1994
- Electrical transport in conductive blends of polyaniline in poly(methyl methacrylate)Synthetic Metals, 1994
- Carrier tunneling and device characteristics in polymer light-emitting diodesJournal of Applied Physics, 1994
- Superlocalization of the electronic wave functions in conductive polymer blends at concentrations near the percolation thresholdMacromolecules, 1993
- Morphology of conductive, solution-processed blends of polyaniline and poly(methyl methacrylate)Synthetic Metals, 1993
- Light-emitting diodes based on conjugated polymersNature, 1990
- Electron emission in intense electric fieldsProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1928