Tetradentate Platinum(Ii) Complexes Containing Fused 6/5/6 Metallocycles for Efficient Phosphorescent Green Oleds
Phosphorescent Pt(II) complexes are promising emitters for organic light-emitting diode (OLED) application in the fields of display, lighting, healthcare, aerospace and so on. A novel series of biphenyl ( bp )-based tetradentate Pt(II) complexes containing fused 6/5/6 metallocycles and employing oxygen or carbon as linking atom was designed and developed. The intermolecular interactions in crystal packing, electrochemical, photophysical and excited-state properties of the bp -based Pt(II) complexes were systematical studied through experimental and theoretical experiments, which could be effectively regulated by ligand modification through linking group control, however their emission spectra nearly no changed. All the bp -based Pt(II) complexes exhibited vibronically featured emission spectra peaking at 502‒505 nm with quantum efficiency of 24‒34% in dichloromethane at room temperature. A peak external quantum efficiency (EQE) of 21.3% and a maximum brightness ( L max ) of 16644 cd/m 2 was achieved for Pt( bp -12) -doped green OLED using 26mCPy as host material
Year of publication: |
[2022]
|
---|---|
Authors: | Li, Guijie ; Wen, Jianfeng ; Zhan, Feng ; Lou, Weiwei ; Yang, Yun-Fang ; Hu, Ying ; She, Yuanbin |
Publisher: |
[S.l.] : SSRN |
Saved in:
freely available
Saved in favorites
Similar items by person
-
Zhang, Minjie, (2019)
-
Individualism, synchronized stock price movements, and stock market volatility
Zhan, Feng, (2019)
-
High frequency trading and end-of-day price dislocation
Aitken, Michael, (2013)
- More ...