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Zhou YY, Xu DY, Cheng W, Wang Y, Tong BH, He GF, Tian YP. Effect of the triptycene scaffold on the photophysical, electrochemical and electroluminescence properties of the iridium( iii) complex. NEW J CHEM 2020. [DOI: 10.1039/d0nj01930e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Complex 2 achieves obviously higher nondoped device performance (12.6 cd A−1, 5.5%) than that of complex 1 (9.8 cd A−1, 3.8%).
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Affiliation(s)
- Yue-Yue Zhou
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling
- Ministry of Education
- Institute of Molecular Engineering and Applied Chemistry
- School of Metallurgy Engineering
- Anhui University of Technology
| | - Ding-Yan Xu
- National Engineering Lab for TFT-LCD Materials and Technologies
- Department of Electronic Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Wei Cheng
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling
- Ministry of Education
- Institute of Molecular Engineering and Applied Chemistry
- School of Metallurgy Engineering
- Anhui University of Technology
| | - Yue Wang
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling
- Ministry of Education
- Institute of Molecular Engineering and Applied Chemistry
- School of Metallurgy Engineering
- Anhui University of Technology
| | - Bi-Hai Tong
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling
- Ministry of Education
- Institute of Molecular Engineering and Applied Chemistry
- School of Metallurgy Engineering
- Anhui University of Technology
| | - Gu-Feng He
- National Engineering Lab for TFT-LCD Materials and Technologies
- Department of Electronic Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Yong-Pan Tian
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling
- Ministry of Education
- Institute of Molecular Engineering and Applied Chemistry
- School of Metallurgy Engineering
- Anhui University of Technology
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2
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Wang Y, Xiao YP, Zhou YY, Hu CG, Tong BH, Ye SH, Mei QB. Novel phosphorescent triptycene-based Ir(iii) complexes for organic light-emitting diodes. Dalton Trans 2019; 48:16289-16297. [PMID: 31621733 DOI: 10.1039/c9dt03182k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A series of charge-neutral cyclometalated iridium(iii) complexes (1-3 and 5-7) containing triptycene-substituted ligands (tbt and tpbi) and two parent complexes (4 and 8) were synthesized and characterized. The crystal structures indicated that π-π stacking interactions existed in ligand tbtH, but not in complex 6. However, a large intramolecular repulsion was found in complex 6. These triptycene-based complexes exhibited good thermal stability, which was higher compared with that of the parent complexes. These complexes showed green to yellow emission with peaks that ranged from 503 to 563 nm. The introduction of the rigid non-conjugate triptycene skeleton caused a slight emission red shift (<25 nm), but a significant increase in the PLQYs (>47%) was observed. The electroluminescent devices employing 2 and 6 as phosphors displayed impressive performance improvements and low efficiency roll-off because of the higher PLQYs and HOMO levels of these triptycene-based complexes. The maximum current and external quantum efficiencies of the devices based on complexes 2 and 6 were 41.7 cd A-1, 11.9% and 41.2 cd A-1, 12.6%, respectively, which were about 31% higher than that of the devices based on the parent complexes 4 and 8. This work provides a novel approach to develop highly efficient phosphors with a triptycene skeleton.
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Affiliation(s)
- Yue Wang
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China.
| | - Yu-Ping Xiao
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, Jiangsu, China.
| | - Yue-Yue Zhou
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China.
| | - Cheng-Gui Hu
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China.
| | - Bi-Hai Tong
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Institute of Molecular Engineering and Applied Chemistry, School of Metallurgy Engineering, Anhui University of Technology, Maanshan, 243002, Anhui, China.
| | - Shang-Hui Ye
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, Jiangsu, China.
| | - Qun-Bo Mei
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, Jiangsu, China.
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3
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Wu D, Zhang H, Liu SH, Yin J. Naphthalimide-Based Triptycenes: Synthesis and Optoelectronic Properties. Chem Asian J 2014; 10:602-7. [DOI: 10.1002/asia.201403302] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Indexed: 01/14/2023]
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4
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Gu YK, Han Y, Chen CF. Guest-dependent complexation of triptycene-derived macrotricyclic host containing one anthracene moiety with paraquat derivatives: construction of [2]rotaxanes. Supramol Chem 2014. [DOI: 10.1080/10610278.2014.976220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Ya-Kun Gu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Ying Han
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Chuan-Feng Chen
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
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