Higher order effects in organic LEDs with sub-bandgap turn-on

Conflicting mechanisms have been proposed to explain the sub-bandgap turn-on behaviour of heterojunction organic light-emitting diodes (OLEDs). Here, by probing and modifying the OLED heterojunction, the authors show that band-to-band recombination is the most likely radiative recombination process.

Bibliographic Details
Main Authors: Sebastian Engmann, Adam J. Barito, Emily G. Bittle, Noel C. Giebink, Lee J. Richter, David J. Gundlach
Format: Article
Language:English
Published: Nature Portfolio 2019-01-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-018-08075-z