A Donor–Acceptor 10-Cycloparaphenylene and Its Use as an Emitter in an Organic Light-Emitting Diode
Dongyang Chen, Yoshimasa Wada, Yu Kusakabe, Liansheng Sun, Eiichi Kayahara, Katsuaki Suzuki, Hiroyuki Tanaka, Shigeru Yamago, Hironori Kaji, Eli Zysman‐Colman
Abstract
High Resolution Image Download MS PowerPoint Slide Here, we explored the possibility of using cycloparaphenylenes (CPP) within a donor–acceptor TADF emitter design. 4PXZPh-[10]CPP contains four electron-donating moieties connected to a [10]CPP . In the 15 wt % doped in CzSi film, 4PXZPh-[10]CPP showed sky-blue emission with λ PL = 475 nm, Φ PL = 29%, and triexponential emission decays with τ PL of 4.4, 46.3, and 907.8 ns. Solution-processed OLEDs using 4PXZPh-[10]CPP exhibited sky-blue emission with an λ EL of 465 nm and an EQE max of 1.0%.
Topics & Concepts
Common emitterOLEDChemistryAcceptorPhotochemistryDiodeOptoelectronicsDopingElectron acceptorMaterials scienceOrganic chemistryPhysicsCondensed matter physicsLayer (electronics)Organic Light-Emitting Diodes ResearchSynthesis and Properties of Aromatic CompoundsOrganic Electronics and Photovoltaics