Electrical Conduction Mechanism and Equivalent Circuit Analysis in $Alq_3$ based Organic Light Emitting Diode

$Alq_3$에 기초한 유기 발광 소자에서 전기전도특성과 등가회로분석

We have studied a conduction mechanism and equivalent circuit analysis in $Alq_3$ based Organic Light Emitting Diode. The conduction mechanism in organic light emitting diode can be classified into three regions; ohmic region, space-charge-limited current (SCLC) region and trap-charge-limited current (TCLC) region depending on the region of applied voltage. Equivalent circuit model of organic light emitting diode can be established using a parallel combination of resistance $R_p$ and capacitance $C_p$ with a small series resistance $R_s$.