51
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Chen G, Chen WC, Ji S, Zhou P, Cai N, Zhan Y, Liang H, Tan JH, Pan C, Huo Y. Polymorphic mechanoresponsive luminescent material based on a fluorene–phenanthroimidazole hybrid by modulation of intramolecular conformation and intermolecular interaction. CrystEngComm 2020. [DOI: 10.1039/d0ce00006j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
This study examined the multiple energetic pathways in solid-state photophysics, which are of increasing importance in solid-state lighting applications.
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Affiliation(s)
- Guowei Chen
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Wen-Cheng Chen
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Shaomin Ji
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Peiqi Zhou
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Ning Cai
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Yingying Zhan
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Hui Liang
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Ji-Hua Tan
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Chengqiang Pan
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- China
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates (South China University of Technology)
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52
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Wang K, Xiao H, Qian L, Han M, Wu X, Guo Z, Zhan H. Diversified AIE and mechanochromic luminescence based on carbazole derivative decorated dicyanovinyl groups: effects of substitution sites and molecular packing. CrystEngComm 2020. [DOI: 10.1039/c9ce01958h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Two positional isomers exhibited noticeable different luminescence properties, which were mainly attributed to their different molecular packing modes.
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Affiliation(s)
- Kai Wang
- College of Materials Science and Engineering
- Fuzhou University
- Fuzhou 350108
- PR China
| | - Hui Xiao
- College of Materials Science and Engineering
- Fuzhou University
- Fuzhou 350108
- PR China
| | - Li Qian
- College of Materials Science and Engineering
- Fuzhou University
- Fuzhou 350108
- PR China
| | - Mingxi Han
- College of Materials Science and Engineering
- Fuzhou University
- Fuzhou 350108
- PR China
| | - Xianfeng Wu
- College of Materials Science and Engineering
- Fuzhou University
- Fuzhou 350108
- PR China
| | - Zhiyong Guo
- College of Materials Science and Engineering
- Fuzhou University
- Fuzhou 350108
- PR China
- Key Laboratory of Eco-materials Advanced Technology
| | - Hongbing Zhan
- College of Materials Science and Engineering
- Fuzhou University
- Fuzhou 350108
- PR China
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53
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Godugu K, Gundala TR, Bodapati R, Yadala VDS, Loka SS, Nallagondu CGR. Synthesis, photophysical and electrochemical properties of donor–acceptor type hydrazinyl thiazolyl coumarins. NEW J CHEM 2020. [DOI: 10.1039/d0nj00082e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A practical green MCR strategy has been developed for the synthesis of D–A type hydrazinyl thiazolyl coumarins catalyzed by an environmentally compatible MMT K10 clay in water at RT.
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Affiliation(s)
- Kumar Godugu
- Department of Chemistry
- School of Physical Sciences
- Yogi Vemana University
- Kadapa 516 003
- India
| | | | - Ramakrishna Bodapati
- School of Chemistry
- University of Hyderabad
- Central University P.O
- Hyderabad 500 046
- India
| | | | - Subramanyam Sarma Loka
- Department of Chemistry
- School of Physical Sciences
- Yogi Vemana University
- Kadapa 516 003
- India
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54
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Chen XL, Tang BC, He C, Ma JT, Zhuang SY, Wu YD, Wu AX. Rongalite as a sulfone source: a novel copper-catalyzed sulfur dioxide anion incorporation process. Chem Commun (Camb) 2020; 56:13653-13656. [DOI: 10.1039/d0cc05800a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A novel copper-catalyzed sulfur dioxide anion incorporation cascade for the synthesis of 1-thiaflavanone sulfones has been disclosed using rongalite as an economic and safe sulfone source.
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Affiliation(s)
- Xiang-Long Chen
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Bo-Cheng Tang
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Cai He
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Jin-Tian Ma
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Shi-Yi Zhuang
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
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55
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56
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Zhang S, Ma L, Ye L, Qin Y, Xu Y, Liu X, Wu Y, Zhao W, Ade H, Yao H, Hou J. Modulation of Building Block Size in Conjugated Polymers with D–A Structure for Polymer Solar Cells. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01742] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shaoqing Zhang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Lijiao Ma
- State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular, Sciences CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Long Ye
- Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Yunpeng Qin
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Ye Xu
- State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular, Sciences CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xiaoyu Liu
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Yi Wu
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Wenchao Zhao
- State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular, Sciences CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Harald Ade
- Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Huifeng Yao
- State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular, Sciences CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Jianhui Hou
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
- State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular, Sciences CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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57
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Sych G, Simokaitiene J, Lygaitis R, Jatautiene E, Pashazadeh R, Buika G, Grazulevicius JV. Structure-properties relationship of tetrafluorostyrene-based monomers and polymers containing different donor moieties. REACT FUNCT POLYM 2019. [DOI: 10.1016/j.reactfunctpolym.2019.104323] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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58
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Ahn M, Kim MJ, Wee KR. Electron Push–Pull Effects in 3,9-Bis(p-(R)-diphenylamino)perylene and Constraint on Emission Color Tuning. J Org Chem 2019; 84:12050-12057. [DOI: 10.1021/acs.joc.9b01849] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mina Ahn
- Department of Chemistry and Institute of Basic Science, Daegu University, Gyeongsan 38453, Republic of Korea
| | - Min-Ji Kim
- Department of Chemistry and Institute of Basic Science, Daegu University, Gyeongsan 38453, Republic of Korea
| | - Kyung-Ryang Wee
- Department of Chemistry and Institute of Basic Science, Daegu University, Gyeongsan 38453, Republic of Korea
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59
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Xu Y, Liang X, Liang Y, Guo X, Hanif M, Zhou J, Zhou X, Wang C, Yao J, Zhao R, Hu D, Qiao X, Ma D, Ma Y. Efficient Deep-Blue Fluorescent OLEDs with a High Exciton Utilization Efficiency from a Fully Twisted Phenanthroimidazole-Anthracene Emitter. ACS APPLIED MATERIALS & INTERFACES 2019; 11:31139-31146. [PMID: 31368304 DOI: 10.1021/acsami.9b10823] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A novel, efficient, deep-blue fluorescent emitter mPAC, with a meta-connected donor-acceptor structure containing phenanthroimidazole (PPI) as the donor and phenylcarbazole-substituted anthracene (An-CzP) as the acceptor, was designed and synthesized. The meta-linkage provided a highly twisted molecular conformation, which efficiently interrupts the intramolecular π-conjugation, resulting in a deep-blue emission. The optimized nondoped device based on mPAC displayed a deep-blue emission with a narrow full width at half-maximum of 56 nm and Commission Internationale de L'Eclairage coordinates of (0.16, 0.09). The maximum external quantum efficiency (EQEmax) is 6.76%, corresponding to a high exciton utilization efficiency (EUE) of 59.3-88.9%. Experimental results and theoretical analysis indicated that the high EUE is mainly ascribed to the reverse intersystem crossing (RISC) from T2 to S1, a "hot exciton" path in which the large T2-T1 energy gap (1.45 eV) and small T2-S1 energy difference (0.18 eV, T2 > S1) hamper the internal crossing from T2 to T1 and facilitate the RISC process. For the hot exciton path, the T2 state can be feasibly arranged to a high energy level, forming a thermal equilibrium with S1, even slightly higher than the deep-blue S1 to realize an exergonic RISC process, which is usually difficult for the thermally activated delayed fluorescence emitters.
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Affiliation(s)
- Yuwei Xu
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Xiaoming Liang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Yiqian Liang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Xiaomin Guo
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Muddasir Hanif
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Jiadong Zhou
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Xuehong Zhou
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Cong Wang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Jingwen Yao
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Ruiyang Zhao
- College of Chemical Engineering , Qingdao University of Science and Technology , Qingdao 266042 , P. R. China
| | - Dehua Hu
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Xianfeng Qiao
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Dongge Ma
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Yuguang Ma
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , P. R. China
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60
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Vinayakumara DR, Kesavan R, Kumar S, Adhikari AV. New cyanopyridone-based unsymmetrical dyads: the effect of donor strength on their optoelectronic properties. Photochem Photobiol Sci 2019; 18:2052-2060. [PMID: 31332409 DOI: 10.1039/c9pp00046a] [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
Herein, we describe the design, synthesis and optoelectronic characterization of a new series of highly fluorescent dyes configured with a D-A-D' architecture, viz. CP1 to CP7. In the new molecular design, various electron-donating scaffolds were integrated with an efficient electron-accepting trialkoxyphenyl-substituted cyanopyridone moiety to study the effect of donor strength on their thermal and opto-physical properties. A detailed investigation of their thermal properties reveals that they are thermally robust with high melting and decomposition temperatures. Furthermore, in-depth photophysical studies expose their remarkable fluorescence ability in both solution and aggregated state within a wide spectral range from blue to orange. Evidently, among all the fluorophores, dyads bearing amino donors were found to be highly intense emitters due to their superior donating strength. Furthermore, solvatochromic studies showcase their ICT-dominated optoelectronic properties and it was confirmed by different correlation studies. Finally, the experimental results were correlated with their quantum chemical simulation data.
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Affiliation(s)
- D R Vinayakumara
- Organic Materials Laboratory, Department of Chemistry, National Institute of Technology Karnataka, Surathkal, Mangalore 575 025, India.
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61
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Jiang Y, Feng YY, Zou JX, Lei S, Hu XL, Yin GF, Tan W, Wang Z. Brønsted Base-Switched Selective Mono- and Dithiolation of Benzamides via Copper Catalysis. J Org Chem 2019; 84:10490-10500. [PMID: 31333031 DOI: 10.1021/acs.joc.9b01237] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yi Jiang
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, China
| | - Yi-yue Feng
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, China
| | - Jiao-xia Zou
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, China
| | - Shuai Lei
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, China
| | - Xiao-ling Hu
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, China
| | - Gao-feng Yin
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, China
| | - Wen Tan
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, China
| | - Zhen Wang
- School of Pharmacy, Lanzhou University, West Donggang Road No. 199, Lanzhou 730000, China
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
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62
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Meta-substituted bipolar imidazole based emitter for efficient non-doped deep blue organic light emitting devices with a high electroluminescence. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.04.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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63
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Bobet A, Cuadrado A, Fajarí L, Sirés I, Brillas E, Almajano MP, Jankauskas V, Velasco D, Juliá L. Bipolar charge transport in organic electron donor‐acceptor systems with stable organic radicals as electron‐withdrawing moieties. J PHYS ORG CHEM 2019. [DOI: 10.1002/poc.3974] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ares Bobet
- Departament de Química Biològica i Modelització MolecularInstitut de Química Avançada de Catalunya (CSIC) Barcelona Spain
- Chemical Engineering DepartmentUniversitat Politècnica de Catalunya Barcelona Spain
| | - Alba Cuadrado
- Departament de Química Orgànica Institut de Nanociència i Nanotecnologia (IN2UB)Universitat de Barcelona Barcelona Spain
| | - Lluís Fajarí
- Departament de Química Biològica i Modelització MolecularInstitut de Química Avançada de Catalunya (CSIC) Barcelona Spain
| | - Ignasi Sirés
- Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Química Física, Facultat de QuímicaUniversitat de Barcelona Barcelona Spain
| | - Enric Brillas
- Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Química Física, Facultat de QuímicaUniversitat de Barcelona Barcelona Spain
| | - Maria Pilar Almajano
- Chemical Engineering DepartmentUniversitat Politècnica de Catalunya Barcelona Spain
| | | | - Dolores Velasco
- Departament de Química Orgànica Institut de Nanociència i Nanotecnologia (IN2UB)Universitat de Barcelona Barcelona Spain
| | - Luis Juliá
- Departament de Química Biològica i Modelització MolecularInstitut de Química Avançada de Catalunya (CSIC) Barcelona Spain
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64
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Zhang D, Duan L. Polycyclic Aromatic Hydrocarbon Derivatives toward Ideal Electron-Transporting Materials for Organic Light-Emitting Diodes. J Phys Chem Lett 2019; 10:2528-2537. [PMID: 31038961 DOI: 10.1021/acs.jpclett.9b00526] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
One seemingly fundamental issue for electron-transporting materials (ETMs) in organic light-emitting diodes (OLEDs) is the mutual exclusion of a high electron-transporting mobility ( μe) and a large molecular triplet energy for good exciton confinement. Very recently, a trade-off was realized by adopting polycyclic aromatic hydrocarbon (PAH) derivatives as bipolar ETMs. Though the intrinsic low triplet energy of PAH moieties, good exciton confinement abilities are realized by manipulating the peripheral groups, integrating large μe values and long-term stabilities simultaneously. The resulting state-of-the-art OLED performances manifest the bright future of such ETMs. This Perspective summarizes the theoretical and experimental work relating to the relationship between the molecular structure of PAH-type ETMs and their electronic properties, focusing on charge transfer and exciton confinement abilities; the Perspective concludes by providing a vision of future developments in this field.
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Affiliation(s)
- Dongdong Zhang
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry , Tsinghua University , Beijing 100084 , China
- Center for Flexible Electronics Technology , Tsinghua University , Beijing 100084 , P.R. China
| | - Lian Duan
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry , Tsinghua University , Beijing 100084 , China
- Center for Flexible Electronics Technology , Tsinghua University , Beijing 100084 , P.R. China
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65
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Chen M, Zhao Y, Tang Z, Zhang B, Wei B. Multifunctional Organic Emitters for High‐Performance and Low‐Cost Organic Light‐Emitting Didoes. CHEM REC 2019; 19:1768-1778. [DOI: 10.1002/tcr.201900005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 04/02/2019] [Accepted: 04/03/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Minyu Chen
- Microelectronic R&D Center, School of Mechatronic Engineering and AutomationShanghai University 149 Yanchang Road Shanghai 200072 P. R. China
| | - Yi Zhao
- Microelectronic R&D Center, School of Mechatronic Engineering and AutomationShanghai University 149 Yanchang Road Shanghai 200072 P. R. China
| | - Zhenyu Tang
- Microelectronic R&D Center, School of Mechatronic Engineering and AutomationShanghai University 149 Yanchang Road Shanghai 200072 P. R. China
| | - Bin Zhang
- College of Chemistry and Molecular EngineeringZhengzhou University No.100 Science Avenue Zhengzhou 450001 P. R. China
| | - Bin Wei
- Microelectronic R&D Center, School of Mechatronic Engineering and AutomationShanghai University 149 Yanchang Road Shanghai 200072 P. R. China
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66
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Bella AP, Solomon RV, Vedha SA, Merlin JP. Enhanced luminescence efficiency of structurally tailored new coumarin-based heterocyclic organic materials: a DFT/TD-DFT study. Theor Chem Acc 2019. [DOI: 10.1007/s00214-019-2448-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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67
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Lu L, Luo C, Peng H, Jiang H, Lei M, Yin B. Access to Polycyclic Sulfonyl Indolines via Fe(II)-Catalyzed or UV-Driven Formal [2 + 2 + 1] Cyclization Reactions of N-((1H-indol-3-yl)methyl)propiolamides with NaHSO3. Org Lett 2019; 21:2602-2605. [DOI: 10.1021/acs.orglett.9b00573] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Lin Lu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Chenguang Luo
- State Key Laboratory of Chemical Resource Engineering, College of Science, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hui Peng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Ming Lei
- State Key Laboratory of Chemical Resource Engineering, College of Science, Beijing University of Chemical Technology, Beijing 100029, China
| | - Biaolin Yin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
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68
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Jayabharathi J, Nethaji P, Thanikachalam V, Ramya R. Derivatives of Cyanonaphthyl-Substituted Phenanthroimidazole as Blue Emitters for Nondoped Organic Light-Emitting Diodes. ACS OMEGA 2019; 4:4553-4570. [PMID: 31459647 PMCID: PMC6649183 DOI: 10.1021/acsomega.8b03617] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Accepted: 02/13/2019] [Indexed: 06/10/2023]
Abstract
New multifunctional blue-emissive materials with superior thermal properties, viz., 4,4'-bis(1-(4-naphthyl)-1H-phenanthro[9,10-d]imidazol-2-yl)binaphthyl (NPIBN), 4,4'-bis(1-(4-cyanonaphthyl)-1H-phenanthro[9,10-d]imidazol-2-yl)biphenyl (CNPIBP), and 4,4'-bis(1-(4-cyanonaphthyl)-1H-phenanthro[9,10-d]imidazol-2-yl)binaphthyl (CNPIBN) have been synthesized. The said molecules show high photoluminescence quantum yield (Φs/f: NPIBN-0.75/0.68, CNPIBP-0.85/0.76, and CNPIBN-0.90/0.88). The fabricated nondoped/doped device with CNPIBN/4,4'-bis(carbazol-9-yl)biphenyl: CNPIBN display maximum efficiencies (ηex 4.96/5.4%; ηc 7.46/7.56 cd A-1; ηp 6.85/6.91 lm W-1) at low turn-on voltage (3.5/3.8 V). Nondoped devices based on D-π-A architecture, 4-(2-(5-(9H-carbazol-9-yl)thiophen-2-yl)-1H-phenanthro[9,10-d]imidazol-1-yl)naphthalene-1-carbonitrile exhibit maximum efficiencies (ηex 2.32%; ηc 4.00 cd A-1; ηp 3.42 lm W-1) compared to 4-(2-(5-(4-(diphenylamino)phenyl)thiophen-2-yl)-1H-phenanthro[9,10-d]imidazol-1-yl)naphthalene-1-carbonitrile (ηex 2.01%; ηc 3.89 cd A-1; ηp 3.15 lm W-1).
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Affiliation(s)
- Jayaraman Jayabharathi
- Department of Chemistry, Annamalai
University, Annamalai Nagar, Chidambaram, Tamilnadu 608 002, India
| | - Pavadai Nethaji
- Department of Chemistry, Annamalai
University, Annamalai Nagar, Chidambaram, Tamilnadu 608 002, India
| | - Venugopal Thanikachalam
- Department of Chemistry, Annamalai
University, Annamalai Nagar, Chidambaram, Tamilnadu 608 002, India
| | - Ramaiyan Ramya
- Department of Chemistry, Annamalai
University, Annamalai Nagar, Chidambaram, Tamilnadu 608 002, India
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69
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Cai M, Zhao C, Zhang D, Song X, Duan L. Investigation on two triphenylene based electron transport materials. Sci China Chem 2019. [DOI: 10.1007/s11426-018-9434-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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70
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Devibala P, Dheepika R, Vadivelu P, Nagarajan S. Synthesis of Aroylbenzoate-Based Push-Pull Molecules for OFET Applications. ChemistrySelect 2019. [DOI: 10.1002/slct.201803394] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | | | - Prabha Vadivelu
- Department of Chemistry; Central University of Tamil Nadu; Thiruvarur-610 005 India
| | - Samuthira Nagarajan
- Department of Chemistry; Central University of Tamil Nadu; Thiruvarur-610 005 India
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71
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Li Z, Li C, Xu Y, Xie N, Jiao X, Wang Y. Nonsymmetrical Connection of Two Identical Building Blocks: Constructing Donor-Acceptor Molecules as Deep Blue Emitting Materials for Efficient Organic Emitting Diodes. J Phys Chem Lett 2019; 10:842-847. [PMID: 30734562 DOI: 10.1021/acs.jpclett.9b00300] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We propose a strategy to construct deep blue emission molecules based on the concept of nonsymmetrical connection of two identical π-conjugated groups. It was demonstrated that the nonsymmetrical connection strategy indeed resulted in the separation of the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) and the formation of a donor-acceptor (D-A) structure. For D-A molecules constructed by two identical groups, the degree of charge transfer is weaker and deep blue emission is easily achieved. Two D-A molecules (PIpPI and PImPI) were synthesized by employing diphenyl-phenanthroimidazole (PI) as a building block. The nonsymmetric connection of PI groups endows these molecules with a D-A feature that can result in a bipolar transport property. The nondoped organic light-emitting diodes with PIpPI and PImPI as emitter exhibit deep-blue emission and maximum external quantum efficiencies of 8.84% and 6.83%, respectively.
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Affiliation(s)
- Zhiqiang Li
- State Key Laboratory of Supramolecular Structure and Materials , Jilin University , Changchun 130012 , P. R. China
| | - Chenglong Li
- State Key Laboratory of Supramolecular Structure and Materials , Jilin University , Changchun 130012 , P. R. China
| | - Yincai Xu
- State Key Laboratory of Supramolecular Structure and Materials , Jilin University , Changchun 130012 , P. R. China
| | - Ning Xie
- State Key Laboratory of Supramolecular Structure and Materials , Jilin University , Changchun 130012 , P. R. China
| | - Xuechen Jiao
- Department of Materials Science and Engineering , Monash University , Australian Synchrotron, Clayton 3800 , Victoria , Australia
| | - Yue Wang
- State Key Laboratory of Supramolecular Structure and Materials , Jilin University , Changchun 130012 , P. R. China
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72
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de Jong F, Daniels M, Vega-Castillo L, Kennes K, Martín C, de Miguel G, Cano M, Pérez-Morales M, Hofkens J, Dehaen W, Van der Auweraer M. 5,10-Dihydrobenzo[ a]indolo[2,3- c]carbazoles as Novel OLED Emitters. J Phys Chem B 2019; 123:1400-1411. [PMID: 30645122 DOI: 10.1021/acs.jpcb.8b10942] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The excited-state dynamics of four 5,10-dihydrobenzo[ a]indolo[2,3- c]carbazoles in solution and in films were studied with stationary and time-resolved spectroscopies. The solvent dependency of the photophysics reveals no appreciable dipole moment in the ground state. In the excited state, electron-withdrawing substituents contribute to an outspoken charge-transfer character. In films, although the molecules are mostly present as monomers, the excited-state dynamics are characterized by a cascade of energy-transfer processes to excited dimers and aggregates which dominate the photoluminescence (PL) spectra. The properties of the aggregates depend on the used substituents. The electroluminescence spectra obtained from single-layer and multilayer devices mostly resemble the PL spectra, but show contributions from other species such as electromers or electroplexes. It is inferred that the different substituents lead to a different packing of the carbazole moieties, each of which has different mobilities and recombination probabilities.
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Affiliation(s)
| | | | - Luis Vega-Castillo
- Departamento de Química Física y Termodinámica Aplicada, Instituto Universitario de Investigación en Química Fina y Nanoquímica IUQFN , Universidad de Córdoba , Campus de Rabanales, Edificio Marie Curie , E-14071 Córdoba , Spain
| | | | - Cristina Martín
- Departamento de Química Física, Facultad de Farmacia, Facultad de Farmacia , Universidad de Castilla-La Mancha , Campus Universitario , 02071 Albacete , Spain
| | - Gustavo de Miguel
- Departamento de Química Física y Termodinámica Aplicada, Instituto Universitario de Investigación en Química Fina y Nanoquímica IUQFN , Universidad de Córdoba , Campus de Rabanales, Edificio Marie Curie , E-14071 Córdoba , Spain
| | - Manuel Cano
- Departamento de Química Física y Termodinámica Aplicada, Instituto Universitario de Investigación en Química Fina y Nanoquímica IUQFN , Universidad de Córdoba , Campus de Rabanales, Edificio Marie Curie , E-14071 Córdoba , Spain
| | - Marta Pérez-Morales
- Departamento de Química Física y Termodinámica Aplicada, Instituto Universitario de Investigación en Química Fina y Nanoquímica IUQFN , Universidad de Córdoba , Campus de Rabanales, Edificio Marie Curie , E-14071 Córdoba , Spain
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73
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Mohan Nalluri SK, Zhou J, Cheng T, Liu Z, Nguyen MT, Chen T, Patel HA, Krzyaniak MD, Goddard WA, Wasielewski MR, Stoddart JF. Discrete Dimers of Redox-Active and Fluorescent Perylene Diimide-Based Rigid Isosceles Triangles in the Solid State. J Am Chem Soc 2019; 141:1290-1303. [PMID: 30537816 DOI: 10.1021/jacs.8b11201] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The development of rigid covalent chiroptical organic materials, with multiple, readily available redox states, which exhibit high photoluminescence, is of particular importance in relation to both organic electronics and photonics. The chemically stable, thermally robust, and redox-active perylene diimide (PDI) fluorophores have received ever-increasing attention owing to their excellent fluorescence quantum yields in solution. Planar PDI derivatives, however, generally suffer from aggregation-caused emission quenching in the solid state. Herein, we report on the design and synthesis of two chiral isosceles triangles, wherein one PDI fluorophore and two pyromellitic diimide (PMDI) or naphthalene diimide (NDI) units are arranged in a rigid cyclic triangular geometry. The optical, electronic, and magnetic properties of the rigid isosceles triangles are fully characterized by a combination of optical spectroscopies, X-ray diffraction (XRD), cyclic voltammetry, and computational modeling techniques. Single-crystal XRD analysis shows that both isosceles triangles form discrete, nearly cofacial PDI-PDI π-dimers in the solid state. While the triangles exhibit fluorescence quantum yields of almost unity in solution, the dimers in the solid state exhibit very weak-yet at least an order of magnitude higher-excimer fluorescence yield in comparison with the almost completely quenched fluorescence of a reference PDI. The triangle containing both NDI and PDI subunits shows superior intramolecular energy transfer from the lowest excited singlet state of the NDI to that of the PDI subunit. Cyclic voltammetry suggests that both isosceles triangles exhibit multiple, easily accessible, and reversible redox states. Applications beckon in arenas related to molecular optoelectronic devices.
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Affiliation(s)
- Siva Krishna Mohan Nalluri
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - Jiawang Zhou
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States.,Institute for Sustainability and Energy at Northwestern , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - Tao Cheng
- Materials and Process Simulation Center , California Institute of Technology , Pasadena , California 91125 , United States
| | - Zhichang Liu
- School of Science , Westlake University , 18 Shilongshan Road , Hangzhou 310024 , China
| | - Minh T Nguyen
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - Tianyang Chen
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - Hasmukh A Patel
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - Matthew D Krzyaniak
- Institute for Sustainability and Energy at Northwestern , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - William A Goddard
- Materials and Process Simulation Center , California Institute of Technology , Pasadena , California 91125 , United States
| | - Michael R Wasielewski
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States.,Institute for Sustainability and Energy at Northwestern , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - J Fraser Stoddart
- Department of Chemistry , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States.,Institute for Molecular Design and Synthesis , Tianjin University , 92 Weijin Road, Nankai District , Tianjin 300072 , China.,School of Chemistry , University of New South Wales , Sydney , NSW 2052 , Australia
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74
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Zhao Z, Chen X, Wang Q, Yang T, Zhang Y, Yuan WZ. Sulphur-containing nonaromatic polymers: clustering-triggered emission and luminescence regulation by oxidation. Polym Chem 2019. [DOI: 10.1039/c9py00519f] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Sulphur-containing nonconventional luminophores with clustering-triggered emission characteristics are developed, whose emission is readily modulated through oxidation.
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Affiliation(s)
- Zihao Zhao
- School of Chemistry and Chemical Engineering
- Shanghai Key Lab of Electrical Insulation and Thermal Aging
- Shanghai Electrochemical Energy Devices Research Center
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Xiaohong Chen
- School of Chemistry and Chemical Engineering
- Shanghai Key Lab of Electrical Insulation and Thermal Aging
- Shanghai Electrochemical Energy Devices Research Center
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Qian Wang
- School of Chemistry and Chemical Engineering
- Shanghai Key Lab of Electrical Insulation and Thermal Aging
- Shanghai Electrochemical Energy Devices Research Center
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Tianjia Yang
- School of Chemistry and Chemical Engineering
- Shanghai Key Lab of Electrical Insulation and Thermal Aging
- Shanghai Electrochemical Energy Devices Research Center
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Yongming Zhang
- School of Chemistry and Chemical Engineering
- Shanghai Key Lab of Electrical Insulation and Thermal Aging
- Shanghai Electrochemical Energy Devices Research Center
- Shanghai Jiao Tong University
- Shanghai 200240
| | - Wang Zhang Yuan
- School of Chemistry and Chemical Engineering
- Shanghai Key Lab of Electrical Insulation and Thermal Aging
- Shanghai Electrochemical Energy Devices Research Center
- Shanghai Jiao Tong University
- Shanghai 200240
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75
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Jayabharathi J, Thanikachalam V, Sundari GA. Efficient electroluminescent hybridized local and charge-transfer host materials with small singlet–triplet splitting to enhance exciton utilization efficiency: excited state transition configuration. RSC Adv 2019; 9:6658-6680. [PMID: 35518456 PMCID: PMC9060926 DOI: 10.1039/c9ra00135b] [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: 01/07/2019] [Accepted: 02/18/2019] [Indexed: 01/08/2023] Open
Abstract
A series of efficient electroluminescent materials with dual carrier transport properties shows enhanced singlet exciton utilization (ηs) due to small singlet–triplet splitting (ΔEST). The strong orbital-coupling transitions of N-(4-(1-(1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-4,5-diphenyl-1H-imidazol-2-yl)naphthalen-4-yl)phenyl)-N-phenyl benzenamine (DDPB) exhibit deep blue emission at 435 nm (CIEy, 0.07) with an external quantum efficiency of 2.01%. The electroluminescent efficiencies of 2-(1-(9H-carbazol-9-yl)naphthalen-4-yl)-1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-1H-phenanthro[9,10-d]imidazole (CDDPI) (L – 3992 cd m−2; ηex – 3.01%; ηc – 2.56 cd A−1; ηp – 2.12 lm W−1) are higher than those of the N-(4-(1-(1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-H-phenanthro[9,10-d]imidazole-2-yl)naphthalen-4-yl)phenyl)-N-phenylbenzenamine (DBDPA) based device (L – 3015 cd m−2; ηex – 2.85%; ηc – 2.01 cd A−1; ηp – 1.92 lm W−1). The blue emissive materials CDDPI and DBDPA are used as a host to construct green and red phosphorescent OLEDs: the green device based on CDDPI:Ir(ppy)3 exhibits higher efficiencies (L – 8812 cd m−2; ηex – 19.0%; ηc – 27.5 cd A−1; ηp – 33.0 lm W−1) at 2.7 V and the red device based on CDDPI:Ir(MQ)2(acac) exhibits a maximum luminance of 39 661 cd m−2 with excellent EL efficiencies [ηex – 19.2%; ηc – 27.9 cd A−1; ηp – 29.2 lm W−1; CIE (0.64, 0.34)] compared with those of the DBDPA:Ir(MQ)2(acac) based device [L – 37 621 cd m−2; ηex – 18.5%; ηc – 25.2 cd A−1; ηp – 25.8 lm W−1; CIE (0.64, 0.34)]. CDDPI:Ir(ppy)3 exhibits higher efficiencies: L = 8812 cd m−2; ηex = 19.0%; ηc = 27.5 cd A−1; ηp = 33.0 lm W−1 at 2.7 V.![]()
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76
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Zhu D, Wu Z, Liang L, Sun Y, Luo B, Huang P, Wen S. Heterocyclic iodoniums as versatile synthons to approach diversified polycyclic heteroarenes. RSC Adv 2019; 9:33170-33179. [PMID: 35529157 PMCID: PMC9073335 DOI: 10.1039/c9ra07288h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 10/09/2019] [Indexed: 12/16/2022] Open
Abstract
Polycyclic heteroarenes are important scaffolds in the construction of pharmaceuticals. We have previously developed a series of novel heterocyclic iodoniums. In our current work, these unique iodoniums were employed to construct various complex polycyclic heteroarenes with structural diversity via tandem dual arylations. As a result, indole, thiophene and triphenylene motifs were fused into these heterocycles with high molecular quality, which might provide promising fragments in drug discovery. Moreover, these heterocycles could be diversified at a late stage. The transformation of heterocyclic iodoniums led to the construction of heterocycles with a high structural diversity.![]()
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Affiliation(s)
- Daqian Zhu
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Sun Yat-sen University Cancer Center
- Guangzhou 510060
- China
| | - Zhouming Wu
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Sun Yat-sen University Cancer Center
- Guangzhou 510060
- China
| | - Liyun Liang
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Sun Yat-sen University Cancer Center
- Guangzhou 510060
- China
| | - Yameng Sun
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Sun Yat-sen University Cancer Center
- Guangzhou 510060
- China
| | - Bingling Luo
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Sun Yat-sen University Cancer Center
- Guangzhou 510060
- China
| | - Peng Huang
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Sun Yat-sen University Cancer Center
- Guangzhou 510060
- China
| | - Shijun Wen
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Sun Yat-sen University Cancer Center
- Guangzhou 510060
- China
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77
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Qin XY, He L, Li J, Hao WJ, Tu SJ, Jiang B. Regioselective synthesis of polycyclic sulfones via radical-induced three-component bicyclization cascades. Chem Commun (Camb) 2019; 55:3227-3230. [DOI: 10.1039/c9cc00324j] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
New radical-triggered three-component bicyclization cascades of 2-alkynylaryldiazonium tetrafluoroborates with a sulfur dioxide surrogate DABCO·(SO2)2 and internal alkynes have been reported for the first time, leading to 49 examples of polycyclic sulfones with moderate to good yields.
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Affiliation(s)
- Xiao-Yan Qin
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Long He
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Jing Li
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science
- Jiangsu Normal University
- Xuzhou
- P. R. China
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78
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Jayabharathi J, Thanikachalam V, Ramya R, Panimozhi S. Strategic tuning of excited-state properties of electroluminescent materials with enhanced hot exciton mixing. RSC Adv 2019; 9:33693-33709. [PMID: 35528924 PMCID: PMC9073535 DOI: 10.1039/c9ra07509g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 10/14/2019] [Indexed: 12/30/2022] Open
Abstract
Deep blue emitters with excellent stability, high quantum yield and multifunctionality are the major issues for full-color displays. In line with this, new multifunctional, thermally stable blue emitters viz., N-(4-(10-(1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-1H-phenanthro[9,10-d]imidazol-2-yl)anthracen-9-yl)phenyl)-N-phenylbenzenamine (DPIAPPB) and 2-(10-(9H-carbazol-9-yl)anthracen-9-yl)-1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-1H-phenanthro[9,10-d]imidazole (CADPPI) with hybridized local charge transfer state (HLCT) and hot exciton properties have been synthesized. These molecules show high photoluminescence quantum yield (Φs/f): (DPIAPPB – 0.82/0.70 and CADPPI – 0.91/0.83). The CADPPI based device (EL – 467 nm) shows high efficiencies [ηc – 9.85 cd A−1; ηp – 10.84 lm W−1; ηex – 4.78% at 2.8 V; CIE (0.15, 0.10)] compared to the DPIAPPB device (EL − 472 nm) [ηc – 6.56 cd A−1; ηp – 6.16 lm W−1; ηex – 4.15% at 2.8 V with CIE (0.15, 0.12)]. The green device with CADPPI:Ir(ppy)3 exhibits a maximum L – 59 012 cd m−2; ηex – 16.8%; ηc – 37.3 cd A−1; ηp – 39.8 lm W−1 with CIE (0.30, 0.60) and the red device with CADPPI:Ir(MDQ)2(acac) shows a maximum L – 43 456 cd m−2; ηex – 21.9%; ηc – 36.0 cd A−1; ηp – 39.6 lm W−1 with CIE (0.64, 0.35). The CADPPI:Ir(ppy)3 device exhibits L – 90 12 cd m−2; ηex – 18.8%; ηc − 27.3 cd A−1; ηp – 29.8 lm W−1; CIE (0.30, 0.60).![]()
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79
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Jiang Q, Xu Y, Yu T, Qiu X, Zhao R, Zhao D, Zheng N, Hu D, Xie Z, Ma Y. A bipolar triphenylamine-dibenzothiophene S,S-dioxide hybrid compound for solution-processable single-layer green OLEDs and as a host for red emitters. NEW J CHEM 2019. [DOI: 10.1039/c9nj00537d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A bipolar triphenylamine-dibenzothiophene S,S-dioxide hybrid compound for solution-processable single-layer green OLEDs and as a host for red emitters.
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80
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Jayabharathi J, Ramya R, Thanikachalam V, Jeeva P, Sarojpurani E. Efficient full-colour organic light-emitting diodes based on donor–acceptor electroluminescent materials with a reduced singlet–triplet splitting energy gap. RSC Adv 2019; 9:2948-2966. [PMID: 35518987 PMCID: PMC9060244 DOI: 10.1039/c8ra09486a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Accepted: 12/21/2018] [Indexed: 12/13/2022] Open
Abstract
A series of efficient blue-emitting materials, namely, Cz-DPVI, Cz-DMPVI, Cz-DEPVI and TPA-DEPVI, possessing a donor–acceptor architecture with dual carrier transport properties and small singlet–triplet splitting is reported. These compounds exhibit excellent thermal properties with a very high glass-transition temperature (Tg), and thus, a stable uniform thin film was formed during device fabrication. Among the weak donor compounds, specifically, Cz-DPVI, Cz-DMPVI and Cz-DEPVI, the Cz-DEPVI-based device showed the maximum efficiencies (L: 13 955 cd m−2, ηex: 4.90%, ηc: 6.0 cd A−1, and ηp: 5.4 lm W−1) with CIE coordinates of (0.15, 0.06) at 2.8 V. The electroluminescent efficiencies of Cz-DEPVI were higher than that of the strong donor TPA-DEPVI-based device (L: 13 856 cd m−2, ηex: 4.70%, ηc: 5.7 cd A−1, and ηp: 5.2 lm W−1). Furthermore, these blue emissive materials were used as hosts to construct efficient green and red phosphorescent OLEDs. The green device based on Cz-DEPVI:Ir(ppy)3 exhibited the maximum L of 8891 cd m−2, ηex of 19.3%, ηc of 27.9 cd A−1 and ηp of 33.4 lm W−1 with CIE coordinates of (0.31, 0.60) and the red device based on Cz-DEPVI:Ir(MQ)2(acac) exhibited the maximum L of 40 565 cd m−2, ηex of 19.9%, ηc of 26.0 cd A−1 and ηp of 27.0 lm W−1 with CIE coordinates of (0.64, 0.37). The Cz-DEPVI device showed high efficiencies of L: 13955 cd m−2, ηex: 4.90%, ηc: 6.0 cd A−1, ηp: 5.4 lm W−1 and CIE coordinates of (0.15, 0.06) at 2.8 V.![]()
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81
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Chen S, Zhang W, Liu W, Ge Z, Wang KP, Gan LH, Hu ZQ. Binaphthanol-based organic fluorophores with color tunability and their optical properties. CrystEngComm 2019. [DOI: 10.1039/c9ce00170k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Dimethylamine substituted binaphthanol-type fluorophores show broad color tunable emissions with solvatochromic, AIE and acidochromic properties.
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Affiliation(s)
- Shaojin Chen
- State Key Laboratory Base of Eco-chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P.R.China
| | - Wenxuan Zhang
- State Key Laboratory Base of Eco-chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P.R.China
| | - Wei Liu
- State Key Laboratory Base of Eco-chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P.R.China
| | - Zhaohai Ge
- State Key Laboratory Base of Eco-chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P.R.China
| | - Kun-Peng Wang
- State Key Laboratory Base of Eco-chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P.R.China
| | - Li-Hua Gan
- School of Chemistry and Chemical Engineering
- Southwest University
- Beibei
- P.R.China
| | - Zhi-Qiang Hu
- State Key Laboratory Base of Eco-chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P.R.China
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82
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Dou D, Wu P, Liao Z, Hao J, Zhang J, Wang Z. A thermally activated delayed fluorescence exciplex to achieve highly efficient and stable blue and green phosphorescent organic light-emitting diodes. RSC Adv 2019; 9:23810-23817. [PMID: 35530600 PMCID: PMC9069484 DOI: 10.1039/c9ra02875g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 06/22/2019] [Indexed: 12/26/2022] Open
Abstract
The development of a thermally activated delayed fluorescence (TADF) exciplex with high energy is of great significance in achieving highly efficient blue, green, and red organic light-emitting diodes (OLEDs) for use in full-color displays and white lighting. Highly efficient and stable blue and green phosphorescent OLEDs were demonstrated by employing a TADF exciplex (energy: 2.9 eV) based on 4-substituted aza-9,9′-spirobifluorenes (aza-SBFs). Blue PhOLEDs demonstrated a maximum current efficiency (CE) of 47.9 cd A−1 and an external quantum efficiency (EQE) of 22.5% at 1300 cd m−2 (2.5 times the values of aza-SBF-based systems), with the best blue PhOLED demonstrating a CE, power efficiency (PE) and EQE of 60.3 cd A−1, 52.7 lm W−1, and 26.2%, respectively. Green PhOLEDs exhibited a CE of 78.1 cd A−1 and EQE of 22.5% at 9360 cd m−2, with the best green PhOLED exhibiting a maximum CE, PE, and EQE of 87.4 cd A−1, 101.6 lm W−1, and 24.5%, respectively. The device operational lifetime was improved over 17-fold compared to reference devices because of the high thermal stability of the materials and full utilization of the TADF exciplex energy, indicating their potential for application in commercial OLEDs. A high energy TADF exciplex (415 nm) based on aza-spirobifluorene derivatives was demonstrated to achieve efficient and stable PhOLEDs.![]()
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Affiliation(s)
- Dehai Dou
- Key Laboratory of Advanced Display and System Applications
- Ministry of Education
- Shanghai University
- 200072 P. R. China
- Department of Chemistry
| | - Peng Wu
- Key Laboratory of Advanced Display and System Applications
- Ministry of Education
- Shanghai University
- 200072 P. R. China
- Department of Chemistry
| | - Zhangcheng Liao
- Key Laboratory of Advanced Display and System Applications
- Ministry of Education
- Shanghai University
- 200072 P. R. China
- Department of Chemistry
| | - Jian Hao
- Department of Chemistry
- Shanghai University
- 200072 P. R. China
| | - Jianhua Zhang
- Key Laboratory of Advanced Display and System Applications
- Ministry of Education
- Shanghai University
- 200072 P. R. China
| | - Zixing Wang
- Key Laboratory of Advanced Display and System Applications
- Ministry of Education
- Shanghai University
- 200072 P. R. China
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83
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Cai M, Zhang D, Duan L. High Performance Thermally Activated Delayed Fluorescence Sensitized Organic Light‐Emitting Diodes. CHEM REC 2018; 19:1611-1623. [DOI: 10.1002/tcr.201800148] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/23/2018] [Indexed: 01/22/2023]
Affiliation(s)
- Minghan Cai
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of EducationDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Dongdong Zhang
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of EducationDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Lian Duan
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of EducationDepartment of ChemistryTsinghua University Beijing 100084 China
- Center for Flexible Electronics TechnologyTsinghua University Beijing 100084 China
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84
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Chen S, Wang M, Jiang X. Pd-Catalyzed C-S Cyclization via C-H Functionalization Strategy: Access to Sulfur-containing Benzoheterocyclics. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800242] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shihao Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, School of Chemistry and Molecular Engineering; East China Normal University; 3663 North Zhongshan Road, Shanghai 200062 China
| | - Ming Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, School of Chemistry and Molecular Engineering; East China Normal University; 3663 North Zhongshan Road, Shanghai 200062 China
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, School of Chemistry and Molecular Engineering; East China Normal University; 3663 North Zhongshan Road, Shanghai 200062 China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; 345 Lingling Road, Shanghai 200032 China
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85
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Kothavale S, Lee KH, Lee JY. 3-Cyano Imidazopyridine Acceptor-based Bipolar and n
-type Host Materials for Phosphorescent Organic Light-Emitting Diodes. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800440] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shantaram Kothavale
- School of Chemical Engineering; Sungkyunkwan University; 2066, Seobu-ro, Jangan-gu, Suwon Gyeonggi 440-746 Korea
| | - Kyung Hyung Lee
- School of Chemical Engineering; Sungkyunkwan University; 2066, Seobu-ro, Jangan-gu, Suwon Gyeonggi 440-746 Korea
| | - Jun Yeob Lee
- School of Chemical Engineering; Sungkyunkwan University; 2066, Seobu-ro, Jangan-gu, Suwon Gyeonggi 440-746 Korea
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86
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Son WJ, Kwak SY, Koo H, Choi B, Kim S, Lee HS, Whangbo MH, Choi H. Enhancing the Kinetic Stability and Lifetime of Organic Light-Emitting Diodes based on Bipolar Hosts by using Spiroconjugation. Chemphyschem 2018; 19:1711-1715. [PMID: 29719110 DOI: 10.1002/cphc.201800025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Indexed: 11/09/2022]
Abstract
We examined how to enhance the lifetime of organic light-emitting diodes (OLEDs) based on bipolar host molecules ET-HT, where ET and HT refer to electron- and hole-transporting units, respectively, by analyzing their thermodynamic and kinetic stabilities. Our DFT calculations reveal that the thermodynamic stability of ET-HT is determined by that of its anion, which is difficult to improve by chemical modifications of ET and HT. The kinetic stability of ET-HT can be enhanced by the spiroconjugation between ET and HT, which occurs when their π-frameworks are extended and have an orthogonal arrangement. Green OLED devices were fabricated by using ET-HTs with and without spiroconjugation, to find that the device with spiroconjugation has a lifetime that is approximately 6 times longer than the one without spiroconjugation.
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Affiliation(s)
- Won-Joon Son
- Samsung Advanced Institute of Technology, Suwon, Gyeonggi-do, 16678, South Korea
| | - Seung-Yeon Kwak
- Samsung Advanced Institute of Technology, Suwon, Gyeonggi-do, 16678, South Korea
| | - Hyun Koo
- Samsung Advanced Institute of Technology, Suwon, Gyeonggi-do, 16678, South Korea
| | - Byoungki Choi
- Samsung Advanced Institute of Technology, Suwon, Gyeonggi-do, 16678, South Korea
| | - Sunghan Kim
- Samsung Advanced Institute of Technology, Suwon, Gyeonggi-do, 16678, South Korea
| | - Hyo Sug Lee
- Samsung Advanced Institute of Technology, Suwon, Gyeonggi-do, 16678, South Korea
| | - Myung-Hwan Whangbo
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695-8204, USA.,State Key Laboratory of Crystal Materials Shandong University, Jinan, China, 250100.,State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter (FJIRSM), Chinese Academy of Sciences (CAS), Fuzhou, China, 350002
| | - Hyeonho Choi
- Samsung Advanced Institute of Technology, Suwon, Gyeonggi-do, 16678, South Korea
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87
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Xie Z, Yu T, Chen J, Ubba E, Wang L, Mao Z, Su T, Zhang Y, Aldred MP, Chi Z. Weak interactions but potent effect: tunable mechanoluminescence by adjusting intermolecular C-H···π interactions. Chem Sci 2018; 9:5787-5794. [PMID: 30079189 PMCID: PMC6050600 DOI: 10.1039/c8sc01703d] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 06/02/2018] [Indexed: 12/28/2022] Open
Abstract
A new mechanoluminescent material (4-(diphenylamino)phenyl)(4-(diphenylphosphanyl)phenyl)methanone (CDpP), which displays tunable mechanoluminescent emission colors, has been designed and successfully synthesized. CDpP shows two distinct mechanoluminescent colors (blue and green) in different crystalline states. Single-crystal analyses and femtosecond transient emission studies reveal that the striking tunable mechanoluminescence properties of CDpP mainly originate from the different C-H···π interactions in the crystal structures. CDpP crystals with more C-H···π interactions show blue mechanoluminescence (ML), and the emission is attributed to the locally excited (LE)-state because the twisting process for the excited state is restricted by C-H···π interactions. Conversely, CDpP crystals with fewer C-H···π interactions display green ML, in which the red-shifted emission band originates from the twisted intramolecular charge transfer (TICT) excited state because the diphenylamine moiety is relatively free to rotate. The manipulation of weak intermolecular interactions in the crystalline state is a useful and reliable strategy for the tuning of the ML emission wavelengths.
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Affiliation(s)
- Zongliang Xie
- PCFM Lab , GD HPPC Lab , Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films , State Key Laboratory of Optoelectronic Material and Technologies , School of Chemistry , Sun Yat-sen University , Guangzhou , 510275 , P. R. China . ; ;
| | - Tao Yu
- PCFM Lab , GD HPPC Lab , Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films , State Key Laboratory of Optoelectronic Material and Technologies , School of Chemistry , Sun Yat-sen University , Guangzhou , 510275 , P. R. China . ; ;
| | - Junru Chen
- PCFM Lab , GD HPPC Lab , Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films , State Key Laboratory of Optoelectronic Material and Technologies , School of Chemistry , Sun Yat-sen University , Guangzhou , 510275 , P. R. China . ; ;
| | - Eethamukkala Ubba
- PCFM Lab , GD HPPC Lab , Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films , State Key Laboratory of Optoelectronic Material and Technologies , School of Chemistry , Sun Yat-sen University , Guangzhou , 510275 , P. R. China . ; ;
| | - Leyu Wang
- PCFM Lab , GD HPPC Lab , Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films , State Key Laboratory of Optoelectronic Material and Technologies , School of Chemistry , Sun Yat-sen University , Guangzhou , 510275 , P. R. China . ; ;
| | - Zhu Mao
- PCFM Lab , GD HPPC Lab , Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films , State Key Laboratory of Optoelectronic Material and Technologies , School of Chemistry , Sun Yat-sen University , Guangzhou , 510275 , P. R. China . ; ;
| | - Tongtong Su
- PCFM Lab , GD HPPC Lab , Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films , State Key Laboratory of Optoelectronic Material and Technologies , School of Chemistry , Sun Yat-sen University , Guangzhou , 510275 , P. R. China . ; ;
| | - Yi Zhang
- PCFM Lab , GD HPPC Lab , Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films , State Key Laboratory of Optoelectronic Material and Technologies , School of Chemistry , Sun Yat-sen University , Guangzhou , 510275 , P. R. China . ; ;
| | - Matthew P Aldred
- PCFM Lab , GD HPPC Lab , Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films , State Key Laboratory of Optoelectronic Material and Technologies , School of Chemistry , Sun Yat-sen University , Guangzhou , 510275 , P. R. China . ; ;
| | - Zhenguo Chi
- PCFM Lab , GD HPPC Lab , Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films , State Key Laboratory of Optoelectronic Material and Technologies , School of Chemistry , Sun Yat-sen University , Guangzhou , 510275 , P. R. China . ; ;
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88
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Liu X, Ma Y, Zhang W, Song B, Ding L, Fung M, Fan J. A Novel Linking Strategy of Using 9,10‐Dihydroacridine to Construct Efficient Host Materials for Red Phosphorescent Organic Light‐Emitting Diodes. Chemistry 2018; 24:11755-11762. [DOI: 10.1002/chem.201802030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 05/17/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Xiang‐Yang Liu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesInstitute of Functional Nano and Soft Materials (FUNSOM)Soochow University Suzhou Jiangsu 215123 China
| | - Yu‐Yang Ma
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesInstitute of Functional Nano and Soft Materials (FUNSOM)Soochow University Suzhou Jiangsu 215123 China
| | - Wenjuan Zhang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesInstitute of Functional Nano and Soft Materials (FUNSOM)Soochow University Suzhou Jiangsu 215123 China
| | - Bo Song
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Suzhou 215123 China
| | - Lei Ding
- College of Electrical and Information EngineeringShaanxi University of Science and Technology Xi'an Shaanxi 710021 China
| | - Man‐Keung Fung
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesInstitute of Functional Nano and Soft Materials (FUNSOM)Soochow University Suzhou Jiangsu 215123 China
| | - Jian Fan
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesInstitute of Functional Nano and Soft Materials (FUNSOM)Soochow University Suzhou Jiangsu 215123 China
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89
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Affiliation(s)
- Fabio Rizzo
- Institute of Molecular Science and Technologies (ISTM); National Research Council (CNR); via Golgi 19 20133 Milano Italy
| | - Fabio Cucinotta
- School of Natural and Environmental Sciences; Newcastle University; Bedson Building 3.45 NE1 7RU Newcastle upon Tyne United Kingdom
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90
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Joseph V, Justin Thomas KR, Yang WY, Kumar Yadav RA, Kumar Dubey D, Jou JH. Tetra-substituted Dipolar Carbazoles: Tuning Optical and Electroluminescence Properties by Linkage Variation. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800248] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Vellaichamy Joseph
- Organic Materials Laboratory; Department of Chemistry; Indian Institute of Technology Roorkee; Roorkee 247 667 India
| | - K. R. Justin Thomas
- Organic Materials Laboratory; Department of Chemistry; Indian Institute of Technology Roorkee; Roorkee 247 667 India
| | - Wan Yun Yang
- Department of Materials science and engineering; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Rohit Ashok Kumar Yadav
- Department of Materials science and engineering; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Deepak Kumar Dubey
- Department of Materials science and engineering; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Jwo-Huei Jou
- Department of Materials science and engineering; National Tsing Hua University; Hsinchu 30013 Taiwan
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91
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Torres-Moya I, Martín R, Díaz-Ortiz Á, Prieto P, Carrillo JR. Self-Assembled Alkynyl Azoles and Benzoazoles as Colored Optical Waveguides. Isr J Chem 2018. [DOI: 10.1002/ijch.201800030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Iván Torres-Moya
- Departamento de Química Orgánica, Facultad de Ciencias y Tecnologías Químicas-IRICA; Universidad de Castilla-La Mancha; 13071 Ciudad Real Spain
| | - Raúl Martín
- Departamento de Química Orgánica, Facultad de Ciencias y Tecnologías Químicas-IRICA; Universidad de Castilla-La Mancha; 13071 Ciudad Real Spain
| | - Ángel Díaz-Ortiz
- Departamento de Química Orgánica, Facultad de Ciencias y Tecnologías Químicas-IRICA; Universidad de Castilla-La Mancha; 13071 Ciudad Real Spain
| | - Pilar Prieto
- Departamento de Química Orgánica, Facultad de Ciencias y Tecnologías Químicas-IRICA; Universidad de Castilla-La Mancha; 13071 Ciudad Real Spain
| | - José Ramón Carrillo
- Departamento de Química Orgánica, Facultad de Ciencias y Tecnologías Químicas-IRICA; Universidad de Castilla-La Mancha; 13071 Ciudad Real Spain
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92
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Zhang D, Song X, Li H, Cai M, Bin Z, Huang T, Duan L. High-Performance Fluorescent Organic Light-Emitting Diodes Utilizing an Asymmetric Anthracene Derivative as an Electron-Transporting Material. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1707590. [PMID: 29774610 DOI: 10.1002/adma.201707590] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 03/18/2018] [Indexed: 06/08/2023]
Abstract
Fluorescent organic light-emitting diodes with thermally activated delayed fluorescent sensitizers (TSF-OLEDs) have aroused wide attention, the power efficiencies of which, however, are limited by the mutual exclusion of high electron-transport mobility and large triplet energy of electron-transporting materials (ETMs). Here, an asymmetric anthracene derivative with electronic properties manipulated by different side groups is developed as an ETM to promote TSF-OLED performances. Multiple intermolecular interactions are observed, leading to a kind of "cable-like packing" in the crystal and favoring the simultaneous realization of high electron-transporting mobility and good exciton-confinement ability, albeit the low triplet energy of the ETM. The optimized TSF-OLEDs exhibit a record-high maximum external quantum efficiency/power efficiency of 24.6%/76.0 lm W-1 , which remain 23.8%/69.0 lm W-1 at a high luminance of even 5000 cd m-2 with an extremely low operation voltage of 3.14 V. This work opens a new paradigm for designing ETMs and also paves the way toward practical application of TSF-OLEDs.
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Affiliation(s)
- Dongdong Zhang
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xiaozeng Song
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Haoyuan Li
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Minghan Cai
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Zhengyang Bin
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Tianyu Huang
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Lian Duan
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
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93
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Liu R, Ran H, Zhao Z, Yang X, Zhang J, Chen L, Sun H, Hu JY. Synthesis and Optical Properties of Donor-Acceptor-Type 1,3,5,9-Tetraarylpyrenes: Controlling Intramolecular Charge-Transfer Pathways by the Change of π-Conjugation Directions for Emission Color Modulations. ACS OMEGA 2018; 3:5866-5875. [PMID: 31458784 PMCID: PMC6641958 DOI: 10.1021/acsomega.8b00583] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 05/07/2018] [Indexed: 06/10/2023]
Abstract
In dipolar organic π-conjugated molecules, variable photophysical properties can be realized through efficient excited-state intramolecular charge transfer (ICT), which essentially depends on the π-conjugation patterns. Herein, we report a controllable regioselective strategy for synthesis and optical properties of two donor-acceptor (DA)-type 1,3,5,9-tetraarylpyrenes (i.e., 1,3-A/5,9-D (4b) and 1,3-D/5,9-A (4c)) by covalently integrating two phenyl rings and two p-OMe/CHO-substituted phenyl units into the 2-tert-butylpyrene building block, in which the two phenyl rings substituted at the 1,3-positions act as acceptors for 4b or as donors for 4c and the two p-OMe or p-CHO-substituted phenyl moieties substituted at the K-region of 5,9-positions act as donors for 4b or as acceptors for 4c, respectively. Density functional theory calculations on their frontier molecular orbitals and UV-vis absorption of S0 → S1 transition theoretically predicted that the change of π-conjugation directions in the two DA pyrenes could be realized through a variety of substitution patterns, implying that the dissimilar ground-state and excited-state electronic structures exist in each molecule. Their single-crystal X-ray analysis reveal their highly twisted conformations that are beneficial for inhibiting the π-aggregations, which are strikingly different from the normal 1,3,5,9-tetraphenylpyrenes (4a) and related 1,3,6,8-tetraarylpyrenes. Indeed, experimental investigations on their optical properties demonstrated that the excited-state ICT pathways can be successfully controlled by the change of π-conjugation directions through the variety of substitution positions, resulting in the modulations of emission color from deep-blue to green in solution. Moreover, for the present DA pyrenes, highly fluorescent emissions with moderate-to-high quantum yields both in the thin film and in the doped poly(methyl methacrylate) film were obtained, suggesting them as promising emitting materials for the fabrication of organic light-emitting diodes.
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Affiliation(s)
- Rui Liu
- Key
Laboratory of Applied Surface and Colloid Chemistry, National Ministry
of Education, Shaanxi Key Laboratory for Advanced Energy Devices,
Shaanxi Engineering Lab for Advanced Energy Technology, School of
Materials Science and Engineering, Shaanxi
Normal University, Xian 710119, China
| | - Huijuan Ran
- Key
Laboratory of Applied Surface and Colloid Chemistry, National Ministry
of Education, Shaanxi Key Laboratory for Advanced Energy Devices,
Shaanxi Engineering Lab for Advanced Energy Technology, School of
Materials Science and Engineering, Shaanxi
Normal University, Xian 710119, China
| | - Zhen Zhao
- Key
Laboratory of Applied Surface and Colloid Chemistry, National Ministry
of Education, Shaanxi Key Laboratory for Advanced Energy Devices,
Shaanxi Engineering Lab for Advanced Energy Technology, School of
Materials Science and Engineering, Shaanxi
Normal University, Xian 710119, China
| | - Xueli Yang
- Key
Laboratory of Applied Surface and Colloid Chemistry, National Ministry
of Education, Shaanxi Key Laboratory for Advanced Energy Devices,
Shaanxi Engineering Lab for Advanced Energy Technology, School of
Materials Science and Engineering, Shaanxi
Normal University, Xian 710119, China
| | - Jiali Zhang
- Key
Laboratory of Applied Surface and Colloid Chemistry, National Ministry
of Education, Shaanxi Key Laboratory for Advanced Energy Devices,
Shaanxi Engineering Lab for Advanced Energy Technology, School of
Materials Science and Engineering, Shaanxi
Normal University, Xian 710119, China
| | - Lijuan Chen
- Key
Laboratory of Applied Surface and Colloid Chemistry, National Ministry
of Education, Shaanxi Key Laboratory for Advanced Energy Devices,
Shaanxi Engineering Lab for Advanced Energy Technology, School of
Materials Science and Engineering, Shaanxi
Normal University, Xian 710119, China
| | - Huaming Sun
- National
Demonstration Center for Experimental Chemistry Education, School
of Chemistry and Chemical Engineering, Shaanxi
Normal University, Xian 710119, China
| | - Jian-Yong Hu
- Key
Laboratory of Applied Surface and Colloid Chemistry, National Ministry
of Education, Shaanxi Key Laboratory for Advanced Energy Devices,
Shaanxi Engineering Lab for Advanced Energy Technology, School of
Materials Science and Engineering, Shaanxi
Normal University, Xian 710119, China
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94
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Jayabharathi J, Sujatha P, Thanikachalam V, Nethaji P. Efficient donor-acceptor host materials for green organic light-emitting devices: non-doped blue-emissive materials with dual charge transport properties. RSC Adv 2018; 8:20007-20015. [PMID: 35541653 PMCID: PMC9080778 DOI: 10.1039/c8ra02840k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 05/15/2018] [Indexed: 12/02/2022] Open
Abstract
Comparative optical, electroluminescence and theoretical studies were performed for (E)-4'-(1-(4-(2-(1-(4-morpholinophenyl)-1H-phenanthro[9,10-d]imidazol-2-yl)vinyl)phenyl)-1H-phenanthro[9,10-d]imidazol-2-yl)-N,N-diphenyl-[1,1'-biphenyl]-4-amine (SMPI-TPA) and (E)-4-(4-(2-(4-(2-(4-(9H-carbazol-9-yl)phenyl)-1H-phenanthro[9,10-d]imidazol-1-yl)styryl)-1H-phenanthro[9,10-d]imidazol-1-yl)phenyl)morpholine (SMPI-Cz). These compounds show excellent thermal properties, dual charge transport properties and form thin films under thermal evaporation. Blue OLEDs (CIE: 0.16, 0.08) based on SMPI-TPA show efficient device performance (η ex 6.1%; η c 5.3 cd A-1; η p 5.2 lm W-1) at low turn-on voltages. Both SMPI-TPA and SMPI-Cz were utilised as hosts for green OLEDs. The devices with SMPI-Cz (30 nm):5 wt% Ir(ppy)3 exhibit maximum luminance of 20 725 cd m-2, and η c and η p values of 61.4 cd A-1 and 63.8 lm W-1, respectively. In comparison, devices with SMPI-TPA (30 nm):5 wt% Ir(ppy)3 exhibit high η c and η p values of 65.2 cd A-1 and 67.1 lm W-1, respectively. Maximum η ex values of 19.6% and 23.4% were obtained from SMPI-TPA:Ir(ppy)3 and SMPI-Cz:Ir(ppy)3, respectively. These device performances indicate that the phenanthroimidazole unit is a tunable building unit for efficient carrier injection and it may also be employed as a host for green OLEDs.
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Affiliation(s)
- Jayaraman Jayabharathi
- Department of Chemistry, Annamalai University Annamalainagar 608 002 Tamilnadu India +91 9443940735
| | - Palanisamy Sujatha
- Department of Chemistry, Annamalai University Annamalainagar 608 002 Tamilnadu India +91 9443940735
| | - Venugopal Thanikachalam
- Department of Chemistry, Annamalai University Annamalainagar 608 002 Tamilnadu India +91 9443940735
| | - Pavadai Nethaji
- Department of Chemistry, Annamalai University Annamalainagar 608 002 Tamilnadu India +91 9443940735
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95
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Thurakkal S, Soman A, Unni KN, Joseph J, Ramaiah D. Simple solution processable carbazole-oxadiazole hybrids for un-doped deep-blue OLEDs. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.03.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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96
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Wu Q, Braveenth R, Zhang HQ, Bae IJ, Kim M, Chai KY. Oxadiazole-Based Highly Efficient Bipolar Fluorescent Emitters for Organic Light-Emitting Diodes. Molecules 2018; 23:E843. [PMID: 29642430 PMCID: PMC6017916 DOI: 10.3390/molecules23040843] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 03/30/2018] [Accepted: 04/05/2018] [Indexed: 11/18/2022] Open
Abstract
In this study, a series of bipolar fluorescence emitters named 2DPAc-OXD, DPAc-OXD, 2PTZ-OXD and PTZ-OXD were designed and synthesized with excellent yields. The characterization of materials was investigated by using nuclear magnetic resonance (NMR) (¹H, 13C), mass spectrometry and thermogravimetric analysis (TGA). To investigate device efficiencies, two different OLED devices (Device 1, Device 2) were fabricated with two different host materials (Bepp₂, DPEPO). The Device 2 with 2PTZ-OXD as fluorescent emitter exhibited excellent power and current efficiencies of 6.88 Lm/W and 10.10 cd/A, respectively. The external quantum efficiency of 2PTZ-OXD was around 3.99% for Device 2. The overall device properties of phenothiazine donor were better than acridine derivatives.
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Affiliation(s)
- Qiong Wu
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University Iksan City, Chonbuk 570-749, Korea.
- Department of Chemistry, Hebei Normal University for Nationalities, Chengde 067000, China.
| | - Ramanaskanda Braveenth
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University Iksan City, Chonbuk 570-749, Korea.
| | - Heng Qiang Zhang
- Department of Chemistry, Hebei Normal University for Nationalities, Chengde 067000, China.
| | - Il-Ji Bae
- Nano-Convergence Research Center, Korea Electronics Technology Institute, Jeonju 54853, Korea.
| | - Miyoung Kim
- Nano-Convergence Research Center, Korea Electronics Technology Institute, Jeonju 54853, Korea.
| | - Kyu Yun Chai
- Division of Bio-Nanochemistry, College of Natural Sciences, Wonkwang University Iksan City, Chonbuk 570-749, Korea.
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97
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Luo X, Liu Z, Zhang B, Hua W, Feng Y, Li L, Zhang D, Cui D. Substituent Effects on Selective Syntheses of Fused‐Ring Heterocycles Based on Carbazole and Naphthalene by Photocyclization: Synthesis, Crystal Structures, and Properties. ChemistrySelect 2018. [DOI: 10.1002/slct.201800267] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Xin‐Yu Luo
- State Key Laboratory of Crystal MaterialsShandong University 27 Shanda Rd. Jinan 250100 (P. R. China
| | - Zhi Liu
- State Key Laboratory of Crystal MaterialsShandong University 27 Shanda Rd. Jinan 250100 (P. R. China
| | - Bao‐Jie Zhang
- State Key Laboratory of Crystal MaterialsShandong University 27 Shanda Rd. Jinan 250100 (P. R. China
| | - Wan‐Ming Hua
- State Key Laboratory of Crystal MaterialsShandong University 27 Shanda Rd. Jinan 250100 (P. R. China
| | - Ying Feng
- State Key Laboratory of Crystal MaterialsShandong University 27 Shanda Rd. Jinan 250100 (P. R. China
| | - Li Li
- State Key Laboratory of Crystal MaterialsShandong University 27 Shanda Rd. Jinan 250100 (P. R. China
| | - Ding‐Chao Zhang
- State Key Laboratory of Crystal MaterialsShandong University 27 Shanda Rd. Jinan 250100 (P. R. China
| | - De‐Liang Cui
- State Key Laboratory of Crystal MaterialsShandong University 27 Shanda Rd. Jinan 250100 (P. R. China
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98
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Thomas KRJ, Bodedla GB. T-Shaped Benzimidazole Derivatives as Blue-Emitting Materials: The Role of C2 Substituents on Photophysical Properties. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- K. R. Justin Thomas
- Organic Materials Chemistry, Department of Chemistry; Indian Institute of Technology Roorkee; Roorkee 247 667 India
| | - Govardhana Babu Bodedla
- Organic Materials Chemistry, Department of Chemistry; Indian Institute of Technology Roorkee; Roorkee 247 667 India
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99
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Liu XY, Tang X, Zhao Y, Zhao D, Fan J, Liao LS. Dispiro and Propellane: Novel Molecular Platforms for Highly Efficient Organic Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2018; 10:1925-1932. [PMID: 29271187 DOI: 10.1021/acsami.7b15645] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The incorporation of spatially oriented aromatic motifs in rigid molecular platforms is of great interest for the design of organic electronic materials. These structures can create unusual packing patterns and charge transport properties in the solid state which are not possible for simple planar structures. Herein, we showed that the novel dispiro and propellane motifs were successfully used as robust molecular platforms for the construction of host materials (TPA, Cz, SF, and SO). The propellane derivative with three functional groups arranged in the staggered conformation was studied for the first time as the host for organic light-emitting diodes (OLEDs). The green and red phosphorescent OLEDs hosted by these dispiro and propellane derivatives exhibited excellent electroluminescence performance. Particularly, the red OLED hosted by the propellane-type SF achieved maximum efficiencies of 47.3 cd A-1, 40.2 lm W-1, and 26.6% and 97.6 cd A-1, 77.8 lm W-1, and 27.0% for the green OLED without any light out-coupling enhancement. These results suggest that the dispiro and propellane molecular platforms have great potential in the construction of OLED materials.
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Affiliation(s)
- Xiang-Yang Liu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM) & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, P. R. China
| | - Xun Tang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM) & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, P. R. China
| | - Yue Zhao
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University , Nanjing 210023, China
| | - Danli Zhao
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM) & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, P. R. China
| | - Jian Fan
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM) & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, P. R. China
- Institute of Organic Optoelectronics (IOO), JITRI , Suzhou, Jiangsu 215212, China
| | - Liang-Sheng Liao
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM) & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, P. R. China
- Institute of Organic Optoelectronics (IOO), JITRI , Suzhou, Jiangsu 215212, China
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100
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Zhang Y, Peng F, He R, Ying L, Yang W, Cao Y. Synthesis and properties of five ring fused aromatic compounds based on S,S-dioxide benzothiophene. NEW J CHEM 2018. [DOI: 10.1039/c7nj04306f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Asymmetrical five ring fused compounds based on S,S-dioxide benzothiophene, BTOF and BTOCz, have wide bandgaps and deep HOMO and LUMO levels.
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Affiliation(s)
- Yuhao Zhang
- Institute of Polymer Optoelectronic Materials and Devices
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Feng Peng
- Institute of Polymer Optoelectronic Materials and Devices
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Ruifeng He
- Institute of Polymer Optoelectronic Materials and Devices
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Lei Ying
- Institute of Polymer Optoelectronic Materials and Devices
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Wei Yang
- Institute of Polymer Optoelectronic Materials and Devices
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Yong Cao
- Institute of Polymer Optoelectronic Materials and Devices
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
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