Thermally Activated Delayed Fluorescence Green OLED with 4500 hours Lifetime and 20% External Quantum Efficiency by Optimizing the Emission Zone using a Single-Emission Spectrum Technique

PaperSetfos
Written By Fluxim AG

Rossa Mac Ciarnáin*, Hin Wai Mo, Kaori Nagayoshi, Hiroshi Fujimoto, Kentaro Harada, Robert Gehlhaar, Tung Huei Ke, Paul Heremans & Chihaya Adachi*

Advanced Materials (2022)

https://onlinelibrary.wiley.com/doi/full/10.1002/adma.202201409

An accessible method based on a single emission spectrum that enables emission zone measurements with sub-second time resolution in an organic light-emitting diode (OLEDs) is shown. A procedure is introduced to study and control the emission zone of an LED system and correlate it with device performance. A thermally activated delayed fluorescence organic LED emission zone is experimentally measured over all luminescing current densities while varying the device structure and while aging.

Fluxim AG
Previous

Reducing Spontaneous Orientational Polarization via Semiconductor Dilution Improves OLED Efficiency and Lifetime
Next

Colloidal III–V Quantum Dot Photodiodes for Short-Wave Infrared Photodetection (Copy)