“…Jou et al constructed OLED devices using organic molecules based on a heptacyclic structure, with an emission peak of 617 nm and an EQE of 7.2% at a luminescence intensity of 25 000 cd m −2 . 16 Therefore, the good stability and charge transport characteristics indicate the potential of the heptacyclic structure in the luminescent material, which is promising to effectively improve the stability of the material coupled with ensuring a certain EQE.…”
The armor-like heptacyclic framework enhances the rigidity and stability of host materials named Hept-TRZ. The luminescent devices based on Hept-TRZ as the red host achieve high efficiency and long lifetime of PhOLEDs.
“…Jou et al constructed OLED devices using organic molecules based on a heptacyclic structure, with an emission peak of 617 nm and an EQE of 7.2% at a luminescence intensity of 25 000 cd m −2 . 16 Therefore, the good stability and charge transport characteristics indicate the potential of the heptacyclic structure in the luminescent material, which is promising to effectively improve the stability of the material coupled with ensuring a certain EQE.…”
The armor-like heptacyclic framework enhances the rigidity and stability of host materials named Hept-TRZ. The luminescent devices based on Hept-TRZ as the red host achieve high efficiency and long lifetime of PhOLEDs.
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