Carrier accumulation in organic heterojunctions controlled by polarization

The diode operation of OLEDs is characterized by the creation a conductive space charge region in an insulating neutral dielectric under voltage application. It contrasts with semiconductor diodes, where created region. We proposed heterojunction theory based on quasi-conductor concept to give unified view, which gave modified Mott-Schottky equation for (Org. Electron. 61, 10 (2018)). Based this theory, we new mobility evaluation method using modulus spectroscopy and reported in-situ simultaneous mobilities carrier densities transporting materials practical OLED configuration (Jpn.J.Appl.Phys. 59(7), 071005 (2020)). However, there were invalid handlings boundary conditions. carefully reconsider connection electric fields through regions Dynamic Modulus Plot (DMP) analysis. that density accumulated carriers governed fixed interface charges rather than Activation Localized Carrier Source (ALCS). Despite errors previous derivation, revised also luckily same expression as result, ensure validity quantitative estimation report.