Improvement in power efficiency in organic light emitting diodes through intermediate Mg:Ag layer in Li/FMg:Ag/Al cathodes

Research output: Contribution to journalArticlepeer-review

Abstract

Effects of Mg:Ag interlayer between LiF and Al on electron injection and device performances of organic light-emitting diodes (OLEDs) were investigated. Thickness of Mg:Ag layer was changed from 0 to 10 nm and the relationship between interlayer thickness and device performances was studied. Current density of OLEDs was increased due to efficient electron injection from cathode to organic layer by Mg:Ag interlayer. In addition, power efficiency of OLEDs was improved by more than 50% due to low driving voltage and high recombination efficiency and it showed a maximum value at a Mg:Ag thickness of 1.0 nm.

Original languageEnglish
Pages (from-to)J117-J119
JournalElectrochemical and Solid-State Letters
Volume10
Issue number10
DOIs
StatePublished - 2007
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

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