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Guo C, Guo S, Lu Q, Jiang Z, Yang Y, Zhou W, Zeng Q, Liang J, Miao Y, Liu Y. Solution-Processed Yellow Organic Light-Emitting Diodes Based on Two New Ionic Ir (III) Complexes. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27092840. [PMID: 35566193 PMCID: PMC9101346 DOI: 10.3390/molecules27092840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 11/16/2022]
Abstract
Two new and efficient cationic yellow-emissive Ir (III) complexes (Ir1 and Ir2) are rationally designed by using 2-(4-chloro-3-(trifluoromethyl)phenyl)-4-methylquinoline as the main ligand, and, respectively, 4,4′-dimethyl-2,2′-bipyridyl and 4,4′-dimethoxy-2,2′-bipyridyl as the ancillary ligands. Both complexes show enhanced phosphorescence (546 nm with 572 nm as shoulder and high phosphorescent quantum efficiency in solution, which is in favor of efficient solution-processed phosphorescent organic light-emitting diodes. Compared with Ir2, the Ir1-based device displays excellent device performance, with maximum external quantum efficiency, current efficiency, and power efficiency of up to 7.92%, 26.32 cd/A and 15.31 lm/W, respectively, thus proving that the two new ionic Ir (III) complexes exhibit great potential for future solution-processed electroluminescence.
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Affiliation(s)
- Chaoxiong Guo
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; (C.G.); (S.G.); (Z.J.); (Y.Y.); (W.Z.); (Q.Z.)
| | - Song Guo
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; (C.G.); (S.G.); (Z.J.); (Y.Y.); (W.Z.); (Q.Z.)
| | - Qiqing Lu
- MOE Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Taiyuan 030024, China;
| | - Zizhan Jiang
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; (C.G.); (S.G.); (Z.J.); (Y.Y.); (W.Z.); (Q.Z.)
| | - Yuzhen Yang
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; (C.G.); (S.G.); (Z.J.); (Y.Y.); (W.Z.); (Q.Z.)
| | - Weiqiao Zhou
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; (C.G.); (S.G.); (Z.J.); (Y.Y.); (W.Z.); (Q.Z.)
| | - Qin Zeng
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; (C.G.); (S.G.); (Z.J.); (Y.Y.); (W.Z.); (Q.Z.)
| | - Jun Liang
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; (C.G.); (S.G.); (Z.J.); (Y.Y.); (W.Z.); (Q.Z.)
- Correspondence: (J.L.); (Y.M.); (Y.L.)
| | - Yanqin Miao
- MOE Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Taiyuan 030024, China;
- Correspondence: (J.L.); (Y.M.); (Y.L.)
| | - Yuanli Liu
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; (C.G.); (S.G.); (Z.J.); (Y.Y.); (W.Z.); (Q.Z.)
- Correspondence: (J.L.); (Y.M.); (Y.L.)
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Xu C, Lv L, Zhang Z, Liu W. Inorganic–Organic Hybrid Molecular Clusters with Cu2I2 Rhomboid Dimer Core as Light-Emitting Coating Materials. J CLUST SCI 2021. [DOI: 10.1007/s10876-020-01886-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zhao FQ, Zheng XK, Yin MN, Zhu T, Bi SH, Qian C, Tao P, Miao YQ, Liu SJ, Zhao Q. Three neutral cyclometalated iridophosphors with steric hindrance for efficient yellow electroluminescence. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Copper iodide organic-inorganic hybrid chelating clusters as luminescent coating materials. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120241] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Lin F, Wang H, Lin H, Liu W, Li J. An antimony based organic-inorganic hybrid coating material with high quantum efficiency and thermal quenching effect. Chem Commun (Camb) 2021; 57:1754-1757. [PMID: 33470253 DOI: 10.1039/d0cc07392j] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An antimony based luminescent organic-inorganic hybrid compound H3SbCl6(L)6 (1, L = 2-(3-methyl-1H-imidazol-3-ium-1-yl)acetate) has been prepared by the solvothermal method. It emits bright green light peaking at 525 nm, with an internal quantum yield (IQY) of 73% under 360 nm excitation. The negative thermal quenching (NTQ) effect has been observed in the temperature range of 77 K to 297 K. Due to its ionic structure, compound 1 is soluble in numerous organic solvents, including methanol, dimethyl sulfoxide (DMSO), etc. The solution processability combined with high quantum efficiency makes 1 a promising candidate as a luminescent coating material for optoelectronic devices.
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Affiliation(s)
- Fang Lin
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd, Nanshan District, Shenzhen, 518055, China
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Feng Z, Gao Z, Qu W, Yang T, Li J, Wang L. Rational design of quinoxaline-based bipolar host materials for highly efficient red phosphorescent organic light-emitting diodes. RSC Adv 2019; 9:10789-10795. [PMID: 35515308 PMCID: PMC9062477 DOI: 10.1039/c9ra01149h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 03/26/2019] [Indexed: 11/21/2022] Open
Abstract
Two novel bipolar carbazole/diphenylquinoxaline-based host materials 3-(2,3-diphenylquinoxalin-6-yl)-9-phenyl-9H-carbazole (M1) and 3-(4-(2,3-diphenylquinoxalin-6-yl)phenyl)-9-phenyl-9H-carbazole (M2) have been rationally designed and synthesized. The phenyl spacer between the functionalized quinoxaline moiety and the carbazole moiety is also introduced to investigate its influence on their photophysical properties. The chemical structures, and thermal, photophysical and electrochemical properties of the two host materials were characterized and explored in detail. Red phosphorescent light-emitting diodes with M1 and M2 as hosts were prepared to explore their electroluminescent properties. Both M1 and M2 host-based red devices exhibit outstanding electroluminescent performance. For example, two red devices all realize good red emission with the maximum at 594 nm, the maximum external quantum efficiency and luminance can reach 14.66% and 28 619 cd m-2 for M1-based devices and 15.07% and 28 818 cd m-2 for M2-based devices, indicating compounds M1 and M2 designed in this work have potential applications in the development of high-performance monochrome and white OLEDs.
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Affiliation(s)
- Zilong Feng
- School of Architecture, Tianjin University Tianjin 300072 PR China
| | - Zhixiang Gao
- School of Architecture, Tianjin University Tianjin 300072 PR China .,Shanxi Province Key Laboratory of Microstructure Functional Materials, Institute of Solid State Physics, Shanxi Datong University Datong 037009 P. R. China
| | - Wenshan Qu
- Shanxi Province Key Laboratory of Microstructure Functional Materials, Institute of Solid State Physics, Shanxi Datong University Datong 037009 P. R. China
| | - Tingting Yang
- Shanxi Province Key Laboratory of Microstructure Functional Materials, Institute of Solid State Physics, Shanxi Datong University Datong 037009 P. R. China
| | - Jiangang Li
- Shanxi Province Key Laboratory of Microstructure Functional Materials, Institute of Solid State Physics, Shanxi Datong University Datong 037009 P. R. China
| | - Lixiong Wang
- School of Architecture, Tianjin University Tianjin 300072 PR China
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Tao P, Miao Y, Wang H, Xu B, Zhao Q. High-Performance Organic Electroluminescence: Design from Organic Light-Emitting Materials to Devices. CHEM REC 2018; 19:1531-1561. [PMID: 30358067 DOI: 10.1002/tcr.201800139] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 10/02/2018] [Indexed: 12/24/2022]
Abstract
Organic electroluminescence is considered as the most competitive alternative for the future solid-state displays and lighting techniques owing to many advantages such as self-luminescence, high efficiency, high contrast, high color rendering index, ultra-thin thickness, transparency, flat and flexibility, etc. The development of high-performance organic electroluminescence has become the continuing focus of research. In this personal account, a brief overview of representative achievements in our study on the design of highly efficient novel organic light-emitting materials (including fluorescent materials, phosphorescent iridium(III) complexes and conjugated polymers bearing phosphorescent iridium(III) complex) and high-performance device structures together with working principles are given. At last, we will give some perspectives on this fascinating field, and also try to provide some potential directions of research on the basis of the current stage of organic electroluminescence.
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Affiliation(s)
- Peng Tao
- Key Laboratory of Interface Science and Engineering in Advanced Materials of Ministry of Education and Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, No. 79, Yingze West Street, Taiyuan, 030024, P.R. China.,Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications (NUPT), No. 9, Wenyuan Road, Nanjing, 210023, P.R. China
| | - Yanqin Miao
- Key Laboratory of Interface Science and Engineering in Advanced Materials of Ministry of Education and Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, No. 79, Yingze West Street, Taiyuan, 030024, P.R. China
| | - Hua Wang
- Key Laboratory of Interface Science and Engineering in Advanced Materials of Ministry of Education and Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, No. 79, Yingze West Street, Taiyuan, 030024, P.R. China
| | - Bingshe Xu
- Key Laboratory of Interface Science and Engineering in Advanced Materials of Ministry of Education and Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, No. 79, Yingze West Street, Taiyuan, 030024, P.R. China
| | - Qiang Zhao
- Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications (NUPT), No. 9, Wenyuan Road, Nanjing, 210023, P.R. China
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