A single emitting layer white OLED based on exciplex interface emission

Organic light-emitting diodes with a spacer enhanced exciplex emission

Exciplex emission in bilayer polymer light-emitting devices

Photoluminescent and electroluminescent studies of bilayer heterojunctions formed from a poly~pyridyl vinylene phenylene vinylene! ~PPyVPV! derivative and poly~vinyl carbazole! ~PVK! show an emission peak which cannot be ascribed to either the PPyVPV derivative or PVK layer. Through studies of absorption and photoluminescence excitation ~PLE! spectra we demonstrate that the additional feature r...

The First Tandem, All-exciplex-based WOLED

Exploiting our recently developed bilayer interface methodology, together with a new wide energy-gap, low LUMO acceptor (A) and the designated donor (D) layers, we succeeded in fabricating an exciplex-based organic light-emitting diode (OLED) systematically tuned from blue to red. Further optimization rendered a record-high blue exciplex OLED with η(ext) of 8%. We then constructed a device stru...

White organic light-emitting devices with a solution-processed small molecular emission layer

Key Laboratory for Organic Electronics and Information, Displays and Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210046, PR China Key Laboratory of Photonics Technology for Information, Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’...

An Ambipolar BODIPY Derivative for a White Exciplex OLED and Cholesteric Liquid Crystal Laser toward Multifunctional Devices.

A new interface engineering method is demonstrated for the preparation of an efficient white organic light-emitting diode (WOLED) by embedding an ultrathin layer of the novel ambipolar red emissive compound 4,4-difluoro-2,6-di(4-hexylthiopen-2-yl)-1,3,5,7,8-pentamethyl-4-bora-3a,4a-diaza-s-indacene (bThBODIPY) in the exciplex formation region. The compound shows a hole and electron mobility of ...