Co‐deposited Cu(I) Complex for Tri‐layered Yellow and White Organic Light‐Emitting Diodes |
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| Authors: | Xiaochen Liu Tao Zhang Tianchi Ni Nan Jiang Zhiwei Liu Zuqiang Bian Zhenghong Lu Chunhui Huang |
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| Affiliation: | 1. Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare Earth, Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, PR China;2. Department of Physics, Yunnan University, Kunming, PR China;3. Department of Materials Science and Engineering, University of Toronto, Toronto, Ontario, Canada |
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| Abstract: | Four compounds 4‐3,6‐di(carbazol‐9‐yl)carbazol‐9‐yl]isoquinoline (TCIQ), 3‐3,6‐di(carbazol‐9‐yl)carbazol‐9‐yl]pyridine (TCPy), 4‐(carbazol‐9‐yl)isoquinoline (4CIQ), and 3‐(carbazol‐9‐yl)pyridine (CPy) containing pyridyl or isoquinolyl were designed and synthesized to co‐deposition with copper iodide (CuI) to form luminescent Cu(I) complex doped film in situ, which could be utilized as the emissive layer in organic light‐emitting diodes (OLEDs). It is found that simple tri‐layered yellow and white OLEDs can be achieved by co‐depositing CuI and TCIQ with tuning ratios. The compound TCIQ serves a dual role as both a ligand for forming the emissive Cu(I) complex and as a host matrix for the formed emitter in yellow OLEDs, and a third role as a blue emitter in white OLEDs. |
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| Keywords: | Cu(I) complex co‐deposit photoluminescence electroluminescence |
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