나노 사이즈의 Ag dot을 성막한 ITO 애노드의 오존처리에 의한 유기발광소자의 홀 주입 특성 향상 = Enhancement of Hole Injection in Organic Light Emitting Device by using Ozone Treated Ag Nanodots Dispersed on ITO Anode

다국어 초록 (Multilingual Abstract)

We report the enhancement of hole injection using ozone-treated Ag nanodots dispersed on indium tin oxide anode in $Ir(ppy)_3-doped$ phosphorescent OLED. Phosphorescent OLED fabricated on Ag nanodots dispersed ITO anode showed a lower turn on voltage and higher luminescence than those of OLEDS prepared commercial ITO anode. Synchrotron x-ray scattering examination results showed that the Ag nanodots dispersed on ITO anode is amorphous structure due to low deposition temperature. It was thought that decrease of the energy barrier height as Ag nanodots changed to $AgO_x$ nanodots by surface treatment using ozone for 10 min led to enhancement of hole injection in phosphorescent OLED. Futhermore, efficient hole injection can be explained by increase of contact region between anode material and organic material through introduction of $Ag_2O$ nanodots.

참고문헌 (Reference)

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