Effect of ITO Surface Treatment on Organic Light Emitting Diodes
Abstract:Performance of organic light emitting diodes with structure of ITO/NPB/NPB:Ir(piq)3/Alq3/AI was studied by inserting MoO3 hole injection layer (HIL) and using differently cleaned indium tin oxides (ITOs). High luminance and quantum efficiencies were obtained using HIL and highly cleaned ITO. High power efficiency was obtained using HIL and conventionally cleaned ITO, while low driving voltage was obtained using highly cleaned ITO without HIL.
Document Type: Research Article
Publication date: April 1, 2012
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