Synthesis, Characterization of Bicarbazole Compounds and Their Application in Codepositing Luminescent Copper Iodide Complexes. Issue 22 (9th August 2017)

• Record Type: Journal Article
• Authors: Rui, Bin; Tan, Yu; Liu, Xiaochen; Wei, Chen; Liu, Yang; Li, Jiayi; Liu, Zhiwei; Bian, Zuqiang; Huang, Chunhui
• Is Part Of: ChemistrySelect. Volume 2:Issue 22(2017)
• Page Start: 6556
• Page End: 6562
• Publication Date: 2017-08-09
• Subjects: Copper Iodide Complex -- Fluorescence -- Organic Light Emitting Diode -- Photophysics; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201700742
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: Eight bicarbazole (BCz) compounds, 9, 9′‐diphenyl‐3, 3′‐bicarbazole (PhBCz), 9, 9′‐di(2‐pyridyl)‐3, 3′‐bicarbazole ( o ‐PyBCz), 9, 9′‐di(3‐pyridyl)‐3, 3′‐ bicarbazole ( m ‐PyBCz), 9, 9′‐di(4‐pyridyl)‐3, 3′‐bicarbazole ( p ‐PyBCz), 9, 9′‐di(5‐pyrimidinyl)‐3, 3′‐bicarbazole (PmBCz), 9, 9′‐di(2‐pyrazinyl)‐3, 3′‐bicarbazole (PzBCz), 9, 9′‐di(4‐isoquinolinyl)‐3, 3′‐bicarbazole (4‐IqBCz), and 9, 9′‐di(5‐isoquinolinyl)‐3, 3′‐bicarbazole (5‐IqBCz), that can be divided into three categories: category one with ortho, meta, or para pyridyl substituted BCz (PhBCz as a reference), category two with pyrimidinyl or pyrazinyl substituted BCz, and category three with 4‐ or 5‐isoquinolinyl substituted BCz, were synthesized and characterized in terms of photophysical, thermal, and electrochemical properties. Moreover, these compounds were utilized to codepositing with copper iodide to form luminescent copper iodide complex doped films in situ, whose emission colors range from green to yellow and might be employed as the emissive layer in organic light‐emitting diodes (OLEDs). Abstract : Luminescent copper(I) complexes are considered as idea emitters in organic light‐emitting diodes (OLEDs). However, most copper(I) complexes have poor thermal stability and hence are not amenable to the vacuum deposition method typically used in the fabrication of OLEDs. In this work, eight bicarbazole (BCz) compounds were designed and synthesized to codeposition with copper iodide to generate luminescent copper iodide complex doped film in situ, which could be utilized as emissive layer in OLEDs.