Electroluminescence property of organic light emitting diode (OLED)

Abstract

Transport properties of electrons and holes were investigated not only in a anthracene-containing poly(p-phenylene-ethynylene)- alt - poly(p-phenylene-vinylene) (PPE-PPV) polymer (AnE-PVstat) light emitting diodes (OLED) but also in an ITO/Ag/polymer/Ag electron and ITO/PEDOT:PSS/polymer/Au hole only devices. Mobility of injected carriers followed the Poole-Frenkel type conduction mechanism and distinguished in the frequency range due to the difference of transit times in admittance measurement. Beginning of light output took place at the turn-on voltage (or flat band voltage), 1.8 V, which was the difference of energy band gap of polymer and two barrier offsets between metals and polymer.

Keywords

Electroluminescence OLED Materials science Optoelectronics Diode PEDOT:PSS Polymer Band gap Light-emitting diode Electron mobility Conductive polymer Nanotechnology Layer (electronics) Composite material

Subject Areas

Organic Light-Emitting Diodes Research ·Electrical and Electronic Engineering ·Physical Sciences

Conducting polymers and applications ·Polymers and Plastics ·Physical Sciences

Organic Electronics and Photovoltaics ·Electrical and Electronic Engineering ·Physical Sciences

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Electroluminescence property of organic light emitting diode (OLED)

Abstract

Keywords

Subject Areas

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