Organic/Organic Heterointerface Engineering to Boost Carrier Injection in OLEDs.

ABSTRACT: We investigate dynamic formation of nanosheet charge accumulations by heterointerface engineering in double injection layer (DIL) based organic light emitting diodes (OLEDs). Our experimental results show that the device performance is considerably improved for the DIL device as the result of heterointerface injection layer (HIIL) formation, in comparison to reference devices, namely, the current density is doubled and even quadrupled and the turn-on voltage is favorably halved, to 3.7 V, which is promising for simple small-molecule OLEDs. The simulation reveals the (i) formation of dynamic p-type doping (DPD) region which treats the quasi Fermi level at the organic/electrode interface, and (ii) formation of dynamic dipole layer (DDL) and the associated electric field at the organic/organi

SUBMITTER: Fathollahi M 

PROVIDER: S-EPMC5316975 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature