Doubly boron- doped pentacenes as emitters for OLEDs

作者：John, Alexandra; Bolte, Michael; Lerner, Hans-Wolfram; Meng, Guoyun; Wang, Suning; Peng, Tai^*; Wagner, Matthias^*

来源：Journal of Materials Chemistry C, 2018, 6(40): 10881-10887.

DOI：10.1039/c8tc03954b

• LIGHT-EMITTING-DIODES
• POLYCYCLIC AROMATIC-HYDROCARBONS
• ORGANIC ELECTROLUMINESCENT DEVICES
• 3-COORDINATE ORGANOBORON COMPOUNDS
• ACTIVATED DELAYED FLUORESCENCE
• AMORPHOUS MOLECULAR MATERIALS
• OPTOELECTRONIC PROPERTIES
• IRIDIUM(III) COMPLEXES
• TRANSPORT-PROPERTIES
• RESPONSIVE BORON

A new class of benchtop-stable boron-doped pentacenes, i.e., 5,14-dimesityl-5,14-dihydro-5,14-diborapentacene (3(H)) and its 2,3-dihalogenated derivatives, 3(F) and 3(Cl), have been successfully applied as emitters in fluorescent organic light-emitting diodes (OLEDs). The best performance was achieved with 2% of the blue emitter 3(H) doped in 9,10-di-(2-naphthyl)anthracene (ADN) as the emitting layer (turn-on voltage V-on = 3.3 V, (em) = 476 nm, maximum external quantum efficiency (ext) = 3.4% with a negligible roll-off up to 10000 cd m(-2), maximum luminance L-max = 39180 cd m(-2)). Contrary to the blue-emitting 3(H)-based device, 3(F)- and 3(Cl)-containing OLEDs produced turquoise (484 nm) and green (492 nm) light, respectively.

• 出版日期2018-10-28
• 单位北京理工大学