Molecular organic light-emitting diodes using highly conducting polymers as anodes
- 20 May 2002
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 80 (20), 3844-3846
- https://doi.org/10.1063/1.1480100
Abstract
Films fabricated from commercially available poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) aqueous dispersions have been widely used in many electronic and optoelectronic applications. Previous attempts to utilize them as anodes in organic light-emitting diodes(OLEDs) were not satisfactory due to their low conductivity. In this letter we report on the fabrication and characterization of an OLED device made using a highly conductive form of PEDOT:PSS as anode and demonstrate its superior performance relative to that of a similar device using the commercial conducting polymer as an anode. An external electroluminescence quantum efficiency of ∼0.73% was measured at 100 A/m 2 .Keywords
This publication has 10 references indexed in Scilit:
- Work function measurements on indium tin oxide filmsJournal of Electron Spectroscopy and Related Phenomena, 2001
- Hole injection barriers at polymer anode/small molecule interfacesApplied Physics Letters, 2001
- Determination of the emission zone in a single-layer polymer light-emitting diode through optical measurementsJournal of Applied Physics, 2001
- Nano-structured conducting polymer network based on PEDOT-PSSSynthetic Metals, 2001
- Stability of the interface between indium-tin-oxide and poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) in polymer light-emitting diodesApplied Physics Letters, 2000
- Surface energy and polarity of treated indium–tin–oxide anodes for polymer light-emitting diodes studied by contact-angle measurementsJournal of Applied Physics, 1999
- Emission mechanism in rubrene-doped molecular organic light-emitting diodes: direct carrier recombination at luminescent centersIEEE Journal of Selected Topics in Quantum Electronics, 1998
- Increased brightness and lifetime of polymer light-emitting diodes with polyaniline anodesSynthetic Metals, 1996
- Polyaniline as a transparent electrode for polymer light-emitting diodes: Lower operating voltage and higher efficiencyApplied Physics Letters, 1994
- Flexible light-emitting diodes made from soluble conducting polymersNature, 1992