Effect of ITO surface treatment on organic light emitting diodes

Taiju Tsuboi; Tadashi Kishimoto; Kazuhiro Wako; Kuniharu Matsuda; Hirofumi Iguchi

doi:10.1166/jnn.2012.5662

Effect of ITO surface treatment on organic light emitting diodes

J Nanosci Nanotechnol. 2012 Apr;12(4):3692-5. doi: 10.1166/jnn.2012.5662.

Authors

Taiju Tsuboi¹, Tadashi Kishimoto, Kazuhiro Wako, Kuniharu Matsuda, Hirofumi Iguchi

Affiliation

¹ Faculty of Engineering, Kyoto Sangyo University, Kamigamo, Kita-Ku, Kyoto 603-8555, Japan.

PMID: 22849198
DOI: 10.1166/jnn.2012.5662

Abstract

Performance of organic light emitting diodes with structure of ITO/NPB/NPB:Ir(piq)3/Alq3/Al 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.