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Gawale Y, Palanisamy P, Lee HS, Chandra A, Kim HU, Ansari R, Chae MY, Kwon JH. Structural Optimization of BODIPY Derivatives: Achieving Stable and Long-Lived Green Emission in Hyperfluorescent OLEDs. ACS APPLIED MATERIALS & INTERFACES 2024; 16:22274-22281. [PMID: 38650524 DOI: 10.1021/acsami.4c02002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Boron dipyrromethene (BODIPY) derivatives are widely studied as terminal emitters in organic light-emitting diodes (OLED) due to their narrow emission and high photoluminescence quantum yield (PLQY). However, the strategy for precisely tuning their emission toward a high color purity is still challenging. Herein, we developed a new design strategy to regulate the emission of BODIPY derivatives by modifying the electronic and steric dominance using functionalities, such as nitrile, pentafluorophenyl, diethyl, and monobenzyl. These rational modifications yielded a series of four novel green BODIPY emitters, namely, tPN-BODIPY, tPPP-BODIPY, tPBn-BODIPY, and tPEN-BODIPY, each benefited with a tuned emissions range of 517 to 542 nm with a narrow fwhm of 25 nm and high photoluminescence quantum yield up to 96%. Among these synthesized BODIPYs, an unsymmetrical tPBn-BODIPY was chosen as a final dopant (FD) to explore its application in OLED devices. The fabricated TADF sensitized fluorescence-OLED (TSF-OLED) exhibits a narrow band pure green emission at 531 nm with corresponding CIE coordinates of (x, y) = (0.27, 0.68) and a maximum external quantum efficiency (EQE) of 20%. Furthermore, the TSF-OLED displayed an exceptionally prolonged device operational lifetime (LT90) of 210 h at an initial luminescence of 3000 cd m-2.
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Affiliation(s)
- Yogesh Gawale
- Organic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Paramasivam Palanisamy
- Organic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Hyun Seung Lee
- Organic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Ajeet Chandra
- Organic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Hae Ung Kim
- Organic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Rasheeda Ansari
- Organic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Mi Young Chae
- Organic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Jang Hyuk Kwon
- Organic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee University, 26, Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
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Altınışık S, Yanalak G, Hatay Patır İ, Koyuncu S. Viologen-Based Covalent Organic Frameworks toward Metal-Free Highly Efficient Photocatalytic Hydrogen Evolution. ACS APPLIED MATERIALS & INTERFACES 2023; 15:18836-18844. [PMID: 37018065 PMCID: PMC10119857 DOI: 10.1021/acsami.2c23233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 03/24/2023] [Indexed: 06/19/2023]
Abstract
Covalent organic frameworks (COFs) have shown promise in the field of photocatalysts for hydrogen evolution. Many studies have been carried out using various electroactive and photoactive moieties such as triazine, imide, and porphyrin to produce COFs with different geometric structures and units. Electron transfer mediators like viologen and their derivatives can accelerate the transfer of electrons from photosensitizers to active sites. Herein, the combination of a biphenyl-bridged dicarbazole electroactive donor skeleton with a viologen acceptor structure is reported for the photocatalytic hydrogen evolution of novel COF structures with various alkyl linkers {TPCBP X-COF [X = ethyl (E), butyl (B), and hexyl (H)]}. The structures became more flexible and exhibited less crystal behavior as the length of the alkyl chain increased according to scanning and transmission electron microscopy images, X-ray diffraction analyses, and theoretical three-dimensional geometric optimization. In comparison, the H2 evolution rate of the TPCBP B-COF (12.276 mmol g-1) is 2.15 and 2.38 times higher than those of the TPCBP H-COF (5.697 mmol h-1) and TPCBP E-COF (5.165 mmol h-1), respectively, under visible light illumination for 8 h. The TPCBP B-COF structure is one of the best-performing catalysts for the corresponding photocatalytic hydrogen evolution in the literature, producing 1.029 mmol g-1 h-1 with a high apparent quantum efficiency of 79.69% at 470 nm. Our strategy provides new aspects for the design of novel COFs with respect to future metal-free hydrogen evolution by using solar energy conversion.
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Affiliation(s)
- Sinem Altınışık
- Canakkale
Onsekiz Mart University, Department of Chemical
Engineering, 17100 Çanakkale, Türkiye
- Canakkale
Onsekiz Mart University, Department of Energy
Resources and Management, 17100 Çanakkale, Türkiye
| | - Gizem Yanalak
- Selcuk
University, Department of Biochemistry, 42130 Konya, Türkiye
| | - İmren Hatay Patır
- Selcuk
University, Department of Biotechnology, 42130 Konya, Türkiye
| | - Sermet Koyuncu
- Canakkale
Onsekiz Mart University, Department of Chemical
Engineering, 17100 Çanakkale, Türkiye
- Canakkale
Onsekiz Mart University, Department of Energy
Resources and Management, 17100 Çanakkale, Türkiye
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Bortolato T, Cuadros S, Simionato G, Dell'Amico L. The advent and development of organophotoredox catalysis. Chem Commun (Camb) 2022; 58:1263-1283. [PMID: 34994368 DOI: 10.1039/d1cc05850a] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In the last decade, photoredox catalysis has unlocked unprecedented reactivities in synthetic organic chemistry. Seminal advancements in the field have involved the use of well-studied metal complexes as photoredox catalysts (PCs). More recently, the synthetic community, looking for more sustainable approaches, has been moving towards the use of purely organic molecules. Organic PCs are generally cheaper and less toxic, while allowing their rational modification to an increased generality. Furthermore, organic PCs have allowed reactivities that are inaccessible by using common metal complexes. Likewise, in synthetic catalysis, the field of photocatalysis is now experiencing a green evolution moving from metal catalysis to organocatalysis. In this feature article, we discuss and critically comment on the scientific reasons for this ongoing evolution in the field of photoredox catalysis, showing how and when organic PCs can efficiently replace their metal counterparts.
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Affiliation(s)
- Tommaso Bortolato
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, Padova, 35131, Italy.
| | - Sara Cuadros
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, Padova, 35131, Italy.
| | - Gianluca Simionato
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, Padova, 35131, Italy.
| | - Luca Dell'Amico
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, Padova, 35131, Italy.
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4
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Analysis of efficiency variations in ν-DABNA based thermally activated delayed fluorescence OLED devices. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.12.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Qi ZC, Lou QX, Niu Y, Yang SD. Temporary (P[double bond, length as m-dash]O) directing group enabled carbazole ortho arylation via palladium catalysis. Chem Commun (Camb) 2021; 57:2021-2024. [PMID: 33506237 DOI: 10.1039/d0cc07596e] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A palladium-catalyzed, temporary P(O) directing group assisted C-H bond arylation of carbazoles was achieved. The release of the directing group occurs spontaneously in the reaction and the mechanistic studies indicate that acid is essential for N-P bond cleavage.
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Affiliation(s)
- Zhi-Chao Qi
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China.
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Turangan N, Xu Y, Spratt H, Rintoul L, Bottle S, MacLeod J. Self-supporting covalent organic framework membranes synthesized through two different processes: solvothermal annealing and solvent vapor annealing. NANOTECHNOLOGY 2021; 32:075604. [PMID: 32937612 DOI: 10.1088/1361-6528/abb903] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Rigid, freestanding covalent organic framework (COF-1) membranes have been synthesized from 1,4-benzenediboronic acid (BDBA) precursors using two different approaches: room temperature solvent-vapour annealing (SVA) and solvothermal annealing (SA). Characterization of films using Fourier-transform infrared (FTIR) spectroscopy, x-ray diffraction (XRD), and various microscopies shows that the films obtained through the two different routes vary in their retained BDBA proportion, crystal size and macroscale morphology. Gas adsorption measurements give specific surface areas of 579 ± 7 m2 g-1 and 739 ± 11 m2 g-1 respectively, suggesting that the average porosity of these films is competitive with bulk-synthesized COF-1 particles. The films have a stratified structure, with a dense, thin top layer and a thicker, sponge-like base layer. Using nanoindentation, we measured the Young's modulus at the top surface of the SVA and SA films to be 3.64 ± 1.20 GPa and 3.33 ± 0.12 GPa respectively, with the smaller uncertainty for the SA film attributed to a more uniform morphology. These measurements provide useful experimental data pertaining to COF-1 mechanical properties, furnishing information relevant to the use of these free-standing membranes in applications such as gas filtration or storage.
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Affiliation(s)
- Nikka Turangan
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane 4000, Australia
- Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane 4000, Australia
| | - Yanan Xu
- Institute of Future Environments (IFE), Queensland University of Technology (QUT), 2 George Street, Brisbane 4000, Australia
| | - Henry Spratt
- Institute of Future Environments (IFE), Queensland University of Technology (QUT), 2 George Street, Brisbane 4000, Australia
| | - Llewellyn Rintoul
- Institute of Future Environments (IFE), Queensland University of Technology (QUT), 2 George Street, Brisbane 4000, Australia
| | - Steven Bottle
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane 4000, Australia
- Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane 4000, Australia
| | - Jennifer MacLeod
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane 4000, Australia
- Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, Brisbane 4000, Australia
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7
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Zhang H, Zhang R, Wang L, Li Y, Liao S, Zhou M. Synthesis Strategies for α‐, β‐, γ‐ and δ‐Carbolines. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000690] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hong Zhang
- State Key Laboratory of Functions and Applications of Medicinal Plants Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 P. R. China
- School of Pharmacy Guizhou Medical University Guian New District Guizhou 550004 P. R. China
| | - Rong‐Hong Zhang
- National Joint Local Engineering Laboratory for Cell Engineering and Biomedicine Technique Guizhou Province Key Laboratory of Regenerative Medicine Key Laboratory of Adult Stem Cell Translational Research (Chinese Academy of Medical Sciences) Center for Tissue Engineering and Stem Cell Research Guizhou Medical University Guiyang 550004 PR China
| | - Li‐Xia Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 P. R. China
- School of Pharmacy Guizhou Medical University Guian New District Guizhou 550004 P. R. China
| | - Yong‐Jun Li
- State Key Laboratory of Functions and Applications of Medicinal Plants Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 P. R. China
- School of Pharmacy Guizhou Medical University Guian New District Guizhou 550004 P. R. China
| | - Shang‐Gao Liao
- State Key Laboratory of Functions and Applications of Medicinal Plants Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 P. R. China
- School of Pharmacy Guizhou Medical University Guian New District Guizhou 550004 P. R. China
| | - Meng Zhou
- State Key Laboratory of Functions and Applications of Medicinal Plants Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education) Guizhou Medical University Guiyang 550004 P. R. China
- School of Pharmacy Guizhou Medical University Guian New District Guizhou 550004 P. R. China
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8
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Horti NC, Kamatagi MD, Patil NR, Nataraj SK, Patil SA, Inamdar SR. Synthesis and photoluminescence properties of polycarbazole/tin oxide (PCz/SnO2) polymer nanocomposites. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-020-03428-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Tang C, Chen Y, Wang F, Jiang T, Hu J, Cao X, Zhang L, Zhang X. Effect of methyl-substitution on carbazole/oxadiazole donor-acceptor (D-A) type host materials for efficient solution-processed green organic light-emitting diodes. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Thiyagarajan MD, Balijapalli U, Nasiri S, Volyniuk D, Simokaitienec J, Pathak M, Iyer SK, Gražulevičius JV. Rational Synthesis of Tetrahydrodibenzophenanthridine and Phenanthroimidazole as Efficient Blue Emitters and their Applications. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901711] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Umamahesh Balijapalli
- Department of Chemistry; School of Advanced Sciences; Vellore Institute of Technology; 632014 Vellore Tamilnadu India
- Centre for Organic Photonics and Electronics Research (OPERA); Kyushu University; 744 Motooka, Nishi 819-0395 Fukuoka Japan
| | - Sohrab Nasiri
- Kaunas University of Technology; Department of Polymer Chemistry and Technology; Radvilenu pl.19, LT 50254 Kaunas Lithunania
| | - Dmytro Volyniuk
- Kaunas University of Technology; Department of Polymer Chemistry and Technology; Radvilenu pl.19, LT 50254 Kaunas Lithunania
| | - Jurate Simokaitienec
- Kaunas University of Technology; Department of Polymer Chemistry and Technology; Radvilenu pl.19, LT 50254 Kaunas Lithunania
| | - Madhvesh Pathak
- Department of Chemistry; School of Advanced Sciences; Vellore Institute of Technology; 632014 Vellore Tamilnadu India
| | - Sathiyanarayanan Kulathu Iyer
- Department of Chemistry; School of Advanced Sciences; Vellore Institute of Technology; 632014 Vellore Tamilnadu India
| | - Juozas Vidas Gražulevičius
- Kaunas University of Technology; Department of Polymer Chemistry and Technology; Radvilenu pl.19, LT 50254 Kaunas Lithunania
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11
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Guo B, Li HY, Chen JY, Young DJ, Lang JP, Li HX. Conjugated nanoporous polycarbazole bearing a cobalt complex for efficient visible-light driven hydrogen evolution. NEW J CHEM 2020. [DOI: 10.1039/d0nj01534b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A conjugated nanoporous polycarbazole (CNP) cross-linked by pyridine and coordinated to Co(iii) displays high catalytic performance for visible light-driven H2 generation.
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Affiliation(s)
- Bin Guo
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Hai-Yan Li
- Analysis and Testing Centre
- Soochow University
- Suzhou 215123
- China
| | - Jian-Ying Chen
- Analysis and Testing Centre
- Soochow University
- Suzhou 215123
- China
| | - David James Young
- College of Engineering, Information Technology and Environment
- Charles Darwin University
- Darwin NT 0909
- Australia
| | - Jian-Ping Lang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Hong-Xi Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
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12
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Xu W, Yu Y, Ji X, Zhao H, Chen J, Fu Y, Cao H, He Q, Cheng J. Self‐Stabilized Amorphous Organic Materials with Room‐Temperature Phosphorescence. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wei Xu
- State Key Lab of Transducer TechnologyShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences Changning Road 865 Shanghai 200050 China
- Center of Materials Science and Optoelectronics EngineeringUniversity of the Chinese Academy of Sciences Yuquan Road 19 Beijing 100039 China
| | - Yaguo Yu
- State Key Lab of Transducer TechnologyShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences Changning Road 865 Shanghai 200050 China
- Center of Materials Science and Optoelectronics EngineeringUniversity of the Chinese Academy of Sciences Yuquan Road 19 Beijing 100039 China
| | - Xiaonan Ji
- State Key Lab of Transducer TechnologyShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences Changning Road 865 Shanghai 200050 China
- Center of Materials Science and Optoelectronics EngineeringUniversity of the Chinese Academy of Sciences Yuquan Road 19 Beijing 100039 China
| | - Huarui Zhao
- State Key Lab of Transducer TechnologyShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences Changning Road 865 Shanghai 200050 China
| | - Jinming Chen
- State Key Lab of Transducer TechnologyShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences Changning Road 865 Shanghai 200050 China
- Center of Materials Science and Optoelectronics EngineeringUniversity of the Chinese Academy of Sciences Yuquan Road 19 Beijing 100039 China
| | - Yanyan Fu
- State Key Lab of Transducer TechnologyShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences Changning Road 865 Shanghai 200050 China
- Center of Materials Science and Optoelectronics EngineeringUniversity of the Chinese Academy of Sciences Yuquan Road 19 Beijing 100039 China
| | - Huimin Cao
- State Key Lab of Transducer TechnologyShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences Changning Road 865 Shanghai 200050 China
| | - Qingguo He
- State Key Lab of Transducer TechnologyShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences Changning Road 865 Shanghai 200050 China
- Center of Materials Science and Optoelectronics EngineeringUniversity of the Chinese Academy of Sciences Yuquan Road 19 Beijing 100039 China
| | - Jiangong Cheng
- State Key Lab of Transducer TechnologyShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences Changning Road 865 Shanghai 200050 China
- Center of Materials Science and Optoelectronics EngineeringUniversity of the Chinese Academy of Sciences Yuquan Road 19 Beijing 100039 China
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13
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Xu W, Yu Y, Ji X, Zhao H, Chen J, Fu Y, Cao H, He Q, Cheng J. Self‐Stabilized Amorphous Organic Materials with Room‐Temperature Phosphorescence. Angew Chem Int Ed Engl 2019; 58:16018-16022. [DOI: 10.1002/anie.201906881] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 07/18/2019] [Indexed: 02/04/2023]
Affiliation(s)
- Wei Xu
- State Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Changning Road 865 Shanghai 200050 China
- Center of Materials Science and Optoelectronics Engineering University of the Chinese Academy of Sciences Yuquan Road 19 Beijing 100039 China
| | - Yaguo Yu
- State Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Changning Road 865 Shanghai 200050 China
- Center of Materials Science and Optoelectronics Engineering University of the Chinese Academy of Sciences Yuquan Road 19 Beijing 100039 China
| | - Xiaonan Ji
- State Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Changning Road 865 Shanghai 200050 China
- Center of Materials Science and Optoelectronics Engineering University of the Chinese Academy of Sciences Yuquan Road 19 Beijing 100039 China
| | - Huarui Zhao
- State Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Changning Road 865 Shanghai 200050 China
| | - Jinming Chen
- State Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Changning Road 865 Shanghai 200050 China
- Center of Materials Science and Optoelectronics Engineering University of the Chinese Academy of Sciences Yuquan Road 19 Beijing 100039 China
| | - Yanyan Fu
- State Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Changning Road 865 Shanghai 200050 China
- Center of Materials Science and Optoelectronics Engineering University of the Chinese Academy of Sciences Yuquan Road 19 Beijing 100039 China
| | - Huimin Cao
- State Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Changning Road 865 Shanghai 200050 China
| | - Qingguo He
- State Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Changning Road 865 Shanghai 200050 China
- Center of Materials Science and Optoelectronics Engineering University of the Chinese Academy of Sciences Yuquan Road 19 Beijing 100039 China
| | - Jiangong Cheng
- State Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Changning Road 865 Shanghai 200050 China
- Center of Materials Science and Optoelectronics Engineering University of the Chinese Academy of Sciences Yuquan Road 19 Beijing 100039 China
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14
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Chen Z, Li H, Tao Y, Chen L, Chen C, Jiang H, Xu S, Zhou X, Chen R, Huang W. Tuning Intramolecular Conformation and Packing Mode of Host Materials through Noncovalent Interactions for High-Efficiency Blue Electrophosphorescence. ACS OMEGA 2019; 4:9129-9134. [PMID: 31460001 PMCID: PMC6648144 DOI: 10.1021/acsomega.9b00724] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 05/07/2019] [Indexed: 05/19/2023]
Abstract
Molecular conformation plays an important role in tuning the packing modes of organic optoelectronic materials to achieve enhanced and/or balanced charge transport. Here, we introduce the noncovalent intramolecular interactions to the host materials of phosphorescent organic light-emitting diodes (PhOLEDs). Different numbers and/or positions of intramolecular CH···N noncovalent interactions were constructed by using different N-heterocycles of pyridine, pyrimidine, and pyrazine as acceptor units and carbazole as the donor unit in a donor-acceptor-donor (D-A-D) motif. Thus, designed D-A-D molecules were synthesized facilely through a one-step Ullmann reaction in high yields, showing varied intramolecular interactions to regulate the molecular conformation significantly. Impressively, owing to the quasi-parallel molecular conformation, which is beneficial for forming facile transporting channels of both holes and electrons, the newly designed host material of 9,9'-(pyridine-2,5-diyl)bis(9H-carbazole) exhibits good device performance of blue PhOLEDs with current, power, and external quantum efficiencies up to 33.0 cd A-1, 32.1 lm W-1, and 16.3%, respectively. This work highlights the significant importance of the noncovalent interactions in designing advanced organic semiconductors for high-performance optoelectronic devices.
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Guo B, Li HX, Zha CH, Young DJ, Li HY, Lang JP. Visible-Light-Enhanced Suzuki-Miyaura Reactions of Aryl Chlorides in Water with Pd NPs Supported on a Conjugated Nanoporous Polycarbazole. CHEMSUSCHEM 2019; 12:1421-1427. [PMID: 30672123 DOI: 10.1002/cssc.201802918] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 01/03/2019] [Indexed: 06/09/2023]
Abstract
The visible-light-enhanced catalytic activation of aryl chlorides for Suzuki-Miyaura cross-coupling (SMC) reactions is highly challenging because of the strength of the C-Cl bond. In this work, palladium nanoparticles (Pd NPs) were grown on a conjugated nanoporous polycarbazole (CNP), named Pd/CNP. The hybrid material Pd/CNP could catalyze the SMC reactions of aryl chlorides with arylboronic acids in water under blue LED irradiation at room temperature with high efficiency. This protocol exhibited good functional group tolerance and the catalyst could be recycled without significant loss of its catalytic activity. CNP not only provided photogenerated electrons to enrich the electron density of the Pd NPs but also generated holes for the activation of the arylboronic acids.
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Affiliation(s)
- Bin Guo
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, P.R. China
| | - Hong-Xi Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
| | - Cheng-Hao Zha
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
| | - David James Young
- College of Engineering, Information Technology and Environment, Charles Darwin University, Northern Territory, 0909, Australia
| | - Hai-Yan Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
| | - Jian-Ping Lang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P.R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, P.R. China
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16
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Modern methods for the synthesis of δ-carbolines. Russ Chem Bull 2019. [DOI: 10.1007/s11172-019-2475-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Jin J, Long G, Gao Y, Zhang J, Ou C, Zhu C, Xu H, Zhao J, Zhang M, Huang W. Supramolecular Design of Donor-Acceptor Complexes via Heteroatom Replacement toward Structure and Electrical Transporting Property Tailoring. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1109-1116. [PMID: 30540179 DOI: 10.1021/acsami.8b16561] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A feasible strategy relies on using heteroatom replacement, namely, chemical modification of an organic compound. Here we present this design concept for donor-acceptor complexes, which involves introducing nitrogen atoms to the middle ring of donor molecules to promote short contacts and reduce steric effect of the mixed framework. These nitrogen-modified complexes can possess a shorter molecular distance besides the mixed-stacking pathway, enlarged π-π interactions, or even a scarce 1:2.5 molar ratio through extra acceptor insertion. As a result, the unique 1:2 complex with nitrogen atoms on the different sides demonstrated stable electron field-effect mobility performance, whereas the binary system with no nitrogen replacement or N atoms on the identical sides displayed poor ambipolar properties. These results confirmed that heteroatom replacement was a powerful molecular design tool to fine-tune the molecular packing of organic donor-acceptor complexes and their corresponding electronic properties.
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Affiliation(s)
- Jianqun Jin
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials , Nanjing University of Posts & Telecommunications , 9 Wenyuan Road , Nanjing 210023 , China
| | - Guankui Long
- Computational Center for Molecular Science, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Yongqian Gao
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , China
| | - Jing Zhang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials , Nanjing University of Posts & Telecommunications , 9 Wenyuan Road , Nanjing 210023 , China
| | - Changjin Ou
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , China
| | - Caixia Zhu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , China
| | - Haixiao Xu
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials , Nanjing University of Posts & Telecommunications , 9 Wenyuan Road , Nanjing 210023 , China
| | - Jianfeng Zhao
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , China
| | - Mingtao Zhang
- Computational Center for Molecular Science, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Wei Huang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials , Nanjing University of Posts & Telecommunications , 9 Wenyuan Road , Nanjing 210023 , China
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , China
- Shaanxi Institute of Flexible Electronics (SIFE) , Northwestern Polytechnical University (NPU) , 127 West Youyi Road , Xi'an 710072 Shaanxi , China
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18
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L S, Babu Yathirajula R, Gopikrishna P, Elaiyappillai E, A B, S SM, Iyer PK, Johnson PM. Pronounced luminescence efficiency and thermal stability of small imidazole architect 2-(1, 4, 5-triphenyl-1H-imidazol-2-yl)phenol for efficient non-doped blue OLEDs. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.08.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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19
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Tagare J, Ulla H, Satyanarayan M, Vaidyanathan S. Efficient non-doped bluish-green organic light emitting devices based on N1 functionalized star-shaped phenanthroimidazole fluorophores. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.11.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Wang F, Cao X, Mei L, Zhang X, Hu J, Tao Y. Twisted penta-Carbazole/Benzophenone Hybrid Compound as Multifunctional Organic Host, Dopant or Non-doped Emitter for Highly Efficient Solution-Processed Delayed Fluorescence OLEDs. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201700703] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fangfang Wang
- Key Lab for Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Centre for Advanced Materials (SICAM); Nanjing Tech University, 30 South Puzhu Road; Nanjing Jiangsu 211816 China
| | - Xudong Cao
- Key Lab for Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Centre for Advanced Materials (SICAM); Nanjing Tech University, 30 South Puzhu Road; Nanjing Jiangsu 211816 China
| | - Ling Mei
- Key Lab for Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Centre for Advanced Materials (SICAM); Nanjing Tech University, 30 South Puzhu Road; Nanjing Jiangsu 211816 China
| | - Xinwen Zhang
- Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials; Nanjing University of Posts and Telecommunications, 9 Wenyuan Road; Nanjing Jiangsu 210046 China
| | - Jia Hu
- Key Lab for Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Centre for Advanced Materials (SICAM); Nanjing Tech University, 30 South Puzhu Road; Nanjing Jiangsu 211816 China
| | - Youtian Tao
- Key Lab for Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Centre for Advanced Materials (SICAM); Nanjing Tech University, 30 South Puzhu Road; Nanjing Jiangsu 211816 China
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21
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Kukhta NA, Matulaitis T, Volyniuk D, Ivaniuk K, Turyk P, Stakhira P, Grazulevicius JV, Monkman AP. Deep-Blue High-Efficiency TTA OLED Using Para- and Meta-Conjugated Cyanotriphenylbenzene and Carbazole Derivatives as Emitter and Host. J Phys Chem Lett 2017; 8:6199-6205. [PMID: 29227664 DOI: 10.1021/acs.jpclett.7b02867] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Elaboration of the appropriate host materials proved to be not less important for the fabrication of a highly efficient OLED than the design of emitters. In the present work, we show how by simple variation of molecular structure both blue emitters exhibiting delayed fluorescence and ambipolar high triplet energy hosts can be obtained. The compounds with a para-junction revealed higher thermal stability (TID up to 480 °C), lower ionization potentials (5.51-5.60 eV), exclusively hole transport, and higher photoluminescence quantum efficiencies (0.90-0.97). Meta-linkage leads to ambipolar charge transport and higher triplet energies (2.82 eV). Introduction of the accepting nitrile groups in the para-position induces intensive delayed fluorescence via a triplet-triplet annihilation up-conversion mechanism. By utilization of the para-substituted derivative as an emitter and the meta-substituted isomer as the host, a deep-blue OLED with the external quantum efficiency of 14.1% was fabricated.
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Affiliation(s)
- Nadzeya A Kukhta
- Department of Polymer Chemistry and Technology, Kaunas University of Technology , Radvilenu pl. 19, LT-254 Kaunas, Lithuania
| | - Tomas Matulaitis
- Department of Polymer Chemistry and Technology, Kaunas University of Technology , Radvilenu pl. 19, LT-254 Kaunas, Lithuania
| | - Dmytro Volyniuk
- Department of Polymer Chemistry and Technology, Kaunas University of Technology , Radvilenu pl. 19, LT-254 Kaunas, Lithuania
| | - Khrystyna Ivaniuk
- Lviv Polytechnic National University , S. Bandera 12, 79013 Lviv, Ukraine
| | - Pavlo Turyk
- Lviv Polytechnic National University , S. Bandera 12, 79013 Lviv, Ukraine
| | - Pavlo Stakhira
- Lviv Polytechnic National University , S. Bandera 12, 79013 Lviv, Ukraine
| | - Juozas V Grazulevicius
- Department of Polymer Chemistry and Technology, Kaunas University of Technology , Radvilenu pl. 19, LT-254 Kaunas, Lithuania
| | - Andrew P Monkman
- Department of Physics, Durham University , South Road, Durham DH1 3LE, United Kingdom
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22
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Joseph V, Thomas KRJ, Singh M, Sahoo S, Jou JH. Manipulation of Donor-Acceptor Interactions in Carbazole-Based Emitters by Chromophore Choice To Achieve Near-UV Emission. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701285] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Vellaichamy Joseph
- Organic Materials Laboratory; Department of Chemistry; Indian Institute of Technology Roorkee; 247 667 Roorkee India
| | - K. R. Justin Thomas
- Organic Materials Laboratory; Department of Chemistry; Indian Institute of Technology Roorkee; 247 667 Roorkee India
| | - Meenu Singh
- Department of Materials science and engineering; National Tsing Hua University; 30013 Hsinchu Taiwan
| | - Snehasis Sahoo
- Department of Materials science and engineering; National Tsing Hua University; 30013 Hsinchu Taiwan
| | - Jwo-Huei Jou
- Department of Materials science and engineering; National Tsing Hua University; 30013 Hsinchu Taiwan
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23
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Liu S, Zhang X, Ou C, Wang S, Yang X, Zhou X, Mi B, Cao D, Gao Z. Structure-Property Study on Two New D-A Type Materials Comprising Pyridazine Moiety and the OLED Application as Host. ACS APPLIED MATERIALS & INTERFACES 2017; 9:26242-26251. [PMID: 28708373 DOI: 10.1021/acsami.7b04859] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this paper, two new pyridazine based donor-acceptor type materials, i.e., 3CzPyaPy: 9,9'-(3-(6-(9H-carbazol-9-yl)pyridazin-3-yl)pyridine-2,6-diyl)bis(9H-carbazole) and 4CzPyPyaPy: 3,6-bis(2,6-di(9H-carbazol-9-yl)pyridin-3-yl)pyridazine, were synthesized with high yields. These two materials exhibited strong absorption/emission with high molar extinction coefficients and moderate photoluminescence quantum yield. The glass transition temperature of 3CzPyaPy was detected to be as high as 131 °C, showing its high thermal stability. Although the absorption energies and oxidation/reduction behaviors of the two materials were similar, the emission from 4CzPyPyaPy with longer effective-conjugation length presented hypsochromic shift both in films and in dilute solutions, contradicting to the common sense. The single crystal structure study disclosed their different space stretching and packing: 3CzPyaPy was twisted in larger angles and adopted dimerlike packing, while 4CzPyPyaPy showed smaller torsion angles and exhibited slipped herringbone packing. The dimerlike packing in 3CzPyaPy is responsible for its bathochromic shift of emission in solid state, while its unsymmetrical molecular structure accounts for that in solution. We believe that the unsymmetrical molecular structure of 3CzPyaPy is partially responsible for its high thermal-stability and also responsible for its HOMO dispersion which renders it slightly more difficult to oxidize. 3CzPyaPy was proved to be a bipolar-transport material and when served as a phosphor host, a green phosphorescent device achieved maximum efficiencies of 54.0 cd A-1, 42.4 lm W-1, and 17.7%, which are among the best with nonoptimized device structure, demonstrating its great potential for optoelectronic application. Furthermore, the new synthesized pyridazine derivatives and the corresponding structural and molecular-packing influences on material properties give a new insight into molecule tailoring.
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Affiliation(s)
- Shaojie Liu
- Key Laboratory for Organic Electronics & Information Displays (KLOEID), Jiangsu Engineering Centre for Plate Displays & Solid State Lighting, and Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications , Nanjing 210023, China
| | - Xunlu Zhang
- Key Laboratory for Organic Electronics & Information Displays (KLOEID), Jiangsu Engineering Centre for Plate Displays & Solid State Lighting, and Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications , Nanjing 210023, China
| | - Changjin Ou
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech) , Nanjing 211816, China
| | - Shulei Wang
- Key Laboratory for Organic Electronics & Information Displays (KLOEID), Jiangsu Engineering Centre for Plate Displays & Solid State Lighting, and Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications , Nanjing 210023, China
| | - Xinli Yang
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), School of Material Science and Engineering, Nanjing University of Posts & Telecommunications , Nanjing, Jiangsu 211816, China
| | - Xinhui Zhou
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), School of Material Science and Engineering, Nanjing University of Posts & Telecommunications , Nanjing, Jiangsu 211816, China
| | - Baoxiu Mi
- Key Laboratory for Organic Electronics & Information Displays (KLOEID), Jiangsu Engineering Centre for Plate Displays & Solid State Lighting, and Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications , Nanjing 210023, China
| | - Dapeng Cao
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), School of Material Science and Engineering, Nanjing University of Posts & Telecommunications , Nanjing, Jiangsu 211816, China
| | - Zhiqiang Gao
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), School of Material Science and Engineering, Nanjing University of Posts & Telecommunications , Nanjing, Jiangsu 211816, China
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24
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Byeon SY, Kim JH, Lee JY. CN-Modified Host Materials for Improved Efficiency and Lifetime in Blue Phosphorescent and Thermally Activated Delayed Fluorescent Organic Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2017; 9:13339-13346. [PMID: 28362481 DOI: 10.1021/acsami.6b15502] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
CN-modified host materials, 9-(2-(9-phenyl-9H-carbazol-3-yl)phenyl)-9H-carbazole-3-carbonitrile (o-CzCN) and 9-(3-(9-phenyl-9H-carbazol-3-yl)phenyl)-9H-carbazole-3-carbonitrile (m-CzCN), which can improve the external quantum efficiency and lifetime of both blue phosphorescent and thermally activated delayed fluorescent (TADF) emitters were developed. A molecular design approach to stabilize the molecular structure and reduce the energy gap produced two high triplet energy host materials of o-CzCN and m-CzCN compatible with the phosphorescent and TADF emitters. The new host materials lowered operation voltage, increased quantum efficiency, and elongated lifetime of both phosphorescent and TADF devices.
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Affiliation(s)
- Sung Yong Byeon
- School of Chemical Engineering, Sungkyunkwan University , 2066, Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, Korea
| | - Ji Han Kim
- School of Chemical Engineering, Sungkyunkwan University , 2066, Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, Korea
| | - Jun Yeob Lee
- School of Chemical Engineering, Sungkyunkwan University , 2066, Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, Korea
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25
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Dong D, Fang D, Li H, Zhu C, Zhao X, Li J, Jin L, Xie L, Chen L, Zhao J, Zhang H, Huang W. C-H Direct Arylated 6H-Indolo[2,3-b]quinoxaline Derivative as a Thickness-Dependent Hole-Injection Layer. Chem Asian J 2017; 12:920-926. [PMID: 28213900 DOI: 10.1002/asia.201700112] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Indexed: 11/05/2022]
Abstract
A novel perfluoro-1,4-phenylenyl 6H-indolo[2,3-b]quinoxaline derivative (TFBIQ) was designed and synthesized by using a C-H direct arylation method. The optoelectrical properties of the obtained TFBIQ were fully characterized by UV/Vis spectroscopy, photoluminescence spectroscopy, cyclic voltammetry, and a group of Alq3 -based green organic light-emitting diodes (OLEDs). Device A, which used 0.5 nm-thick TFBIQ as the interfacial modification layer, exhibited the five best advantages of device performance including a minimum turn-on voltage as low as 3.1 V, a maximum luminescence intensity as high as 26564 cd m-2 , a highest current density value of 348.9 mA cm-2 at a voltage of 11 V, the smallest efficiency roll-off, as well as the greatest power efficiency of 1.46 lm W-1 relative to all of the other tested devices with thicker TFBIQ and also 10 nm-thick MoO3 as hole-injection layers (HILs). As a promising candidate for an organic HIL material, the as-prepared TFBIQ exhibited a strong thickness effect on the performance of corresponding OLEDs. Furthermore, the theoretical calculated vertical ionization potential of the fluorinated TFBIQ suggests better anti-oxidation stability than that of the non-fluorinated structure.
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Affiliation(s)
- Dai Dong
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Da Fang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
| | - Hairong Li
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Caixia Zhu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Xianghua Zhao
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, 464000, Henan, China
| | - Jiewei Li
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Lingzhi Jin
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
| | - Linghai Xie
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
| | - Lin Chen
- Nanjing Polytechnic Institute, Nanjing, 210048, P. R. China
| | - Jianfeng Zhao
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China.,Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
| | - Hongmei Zhang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
| | - Wei Huang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China.,Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, P. R. China
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26
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Ohlendorf L, Velandia JED, Kónya K, Ehlers P, Villinger A, Langer P. Synthesis and properties of 5,7-disubstituted 5,7-dihydropyrido[2,3-b
:6,5-b
′]diindoles. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601390] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lars Ohlendorf
- Institut für Chemie; Universität Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
| | - John E. Diaz Velandia
- Institut für Chemie; Universität Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
| | - Krisztina Kónya
- Department of Organic Chemistry; University of Debrecen; 4032 Debrecen Egyetem tér 1 Hungary
| | - Peter Ehlers
- Institut für Chemie; Universität Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
- Leibniz Institut für Katalyse an der Universität Rostock e. V. (LIKAT); Albert-Einstein-Str. 29a 18059 Rostock Germany
| | - Alexander Villinger
- Institut für Chemie; Universität Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
| | - Peter Langer
- Institut für Chemie; Universität Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
- Leibniz Institut für Katalyse an der Universität Rostock e. V. (LIKAT); Albert-Einstein-Str. 29a 18059 Rostock Germany
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27
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Riaz U, Ashraf SM, Fatima T, Jadoun S. Tuning the spectral, morphological and photophysical properties of sonochemically synthesized poly(carbazole) using acid Orange, fluorescein and rhodamine 6G. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 173:986-993. [PMID: 27852518 DOI: 10.1016/j.saa.2016.11.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 10/10/2016] [Accepted: 11/04/2016] [Indexed: 06/06/2023]
Abstract
The lifetimes and quantum yields of organic dyes are widely investigated due to their potential application in organic light emitting diodes (OLEDs). With a view to explore the possibility of enhancing the fluorescent properties of organic conjugated polymers such as polycarbazole, the present preliminary study reports for the first time, dye modification of polycarbazole using as acid orange (AO), fluorescein (Fluo) and Rhodamine 6G (R6G) for improving its fluorescence properties. The modification of PCz via doping was confirmed by FTIR, UV-visible, XRD and TEM analyses. The fluorescence studies and confocal microscopy were carried out both in solution and solid states to investigate the behavior of the dye modified PCz. Doping was found to be governed by the chemical structure of the dye. PCz-AO revealed intense doping which was confirmed by FTIR and UV-visible studies. PCz-Fluo and PCz-R6G exhibited the highest quantum yield and fluorescence emission in the solid state. Hence, by tailoring the structure of these conjugated polymers, stable fluorescence emitting materials can be designed for their potential application in OLEDs.
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Affiliation(s)
- Ufana Riaz
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India.
| | - S M Ashraf
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Talat Fatima
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Sapana Jadoun
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
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28
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Guo K, Wang H, Wang Z, Si C, Peng C, Chen G, Zhang J, Wang G, Wei B. Stable green phosphorescence organic light-emitting diodes with low efficiency roll-off using a novel bipolar thermally activated delayed fluorescence material as host. Chem Sci 2017; 8:1259-1268. [PMID: 28451268 PMCID: PMC5369523 DOI: 10.1039/c6sc03008d] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 10/03/2016] [Indexed: 11/22/2022] Open
Abstract
A novel bipolar hosting material, 11-(3-(4,6-diphenyl-1,3,5-triazin-2-yl)phenyl)-12,12-dimethyl-11,12-dihydroindeno[2,1-a]carbazole (DPDDC), was designed, synthesized, and characterized for green phosphorescent organic light-emitting diodes (PhOLEDs). The DPDDC exhibits excellent hole and electron transport properties, superior thermal stability, a high glass-transition temperature and a small singlet-triplet energy gap for efficient reverse intersystem crossing from triplet to singlet, reducing the triplet density of the host for PhOLEDs. The electrophosphorescence properties of the devices using DPDDC as the host and three green phosphorescent iridium(iii) complexes, bis(2-(4-tolyl)pyridinato-N,C2')iridium(iii) acetylacetonate, bis(2-phenylpyridine)iridium(iii) acetylacetonate, and bis(4-methyl-2,5-diphenylpyridine)iridium(iii) acetylacetonate [(mdppy)2Iracac] as the emitter were investigated. The green PhOLED with 5 wt% (mdppy)2Iracac presents an excellent performance, including a high power efficiency of 92.3 lm W-1, high external quantum efficiency of 23.6%, current efficiency roll-off as low as 5.5% at 5000 cd m-2 and a twentyfold lifetime improvement (time to 90% of the 5000 cd m-2 initial luminance) over the reference electrophosphorescent device.
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Affiliation(s)
- Kunping Guo
- School of Mechatronic Engineering and Automation , Shanghai University , 149 Yanchang Road , Shanghai , 200072 , P. R. China .
- Key Laboratory of Advanced Display and System Applications , Ministry of Education , Shanghai University , 149 Yanchang Road , Shanghai , 200072 , P. R. China .
| | - Hedan Wang
- Key Laboratory of Advanced Display and System Applications , Ministry of Education , Shanghai University , 149 Yanchang Road , Shanghai , 200072 , P. R. China .
- Department of Chemistry , Shanghai University , 99 Shangda Road , Shanghai , 200444 , P. R. China
| | - Zixing Wang
- Key Laboratory of Advanced Display and System Applications , Ministry of Education , Shanghai University , 149 Yanchang Road , Shanghai , 200072 , P. R. China .
| | - Changfeng Si
- Key Laboratory of Advanced Display and System Applications , Ministry of Education , Shanghai University , 149 Yanchang Road , Shanghai , 200072 , P. R. China .
| | - Cuiyun Peng
- School of Mechatronic Engineering and Automation , Shanghai University , 149 Yanchang Road , Shanghai , 200072 , P. R. China .
| | - Guo Chen
- Key Laboratory of Advanced Display and System Applications , Ministry of Education , Shanghai University , 149 Yanchang Road , Shanghai , 200072 , P. R. China .
| | - Jianhua Zhang
- Key Laboratory of Advanced Display and System Applications , Ministry of Education , Shanghai University , 149 Yanchang Road , Shanghai , 200072 , P. R. China .
| | - Gaofeng Wang
- Ningbo Intime Technology Co. Ltd , No. 23, Ruhu West Road, Simen Town , Yuyao City , Zhejiang Province 345403 , P. R. China
| | - Bin Wei
- School of Mechatronic Engineering and Automation , Shanghai University , 149 Yanchang Road , Shanghai , 200072 , P. R. China .
- Key Laboratory of Advanced Display and System Applications , Ministry of Education , Shanghai University , 149 Yanchang Road , Shanghai , 200072 , P. R. China .
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29
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Chen Z, Liu G, Wang R, Pu S. Highly emissive carbazole-based gold(i) complex with a long room-temperature phosphorescence lifetime and self-reversible mechanochromism characteristics. RSC Adv 2017. [DOI: 10.1039/c7ra00913e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
A gold(i) complex with long room-temperature phosphorescence lifetime has been reported. The luminogen exhibits self-reversible mechanochromic behavior.
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Affiliation(s)
- Zhao Chen
- Jiangxi Key Laboratory of Organic Chemistry
- Jiangxi Science and Technology Normal University
- Nanchang 330013
- PR China
| | - Gang Liu
- Jiangxi Key Laboratory of Organic Chemistry
- Jiangxi Science and Technology Normal University
- Nanchang 330013
- PR China
| | - Renjie Wang
- Jiangxi Key Laboratory of Organic Chemistry
- Jiangxi Science and Technology Normal University
- Nanchang 330013
- PR China
| | - Shouzhi Pu
- Jiangxi Key Laboratory of Organic Chemistry
- Jiangxi Science and Technology Normal University
- Nanchang 330013
- PR China
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30
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Enoki T, Matsuo K, Ohshita J, Ooyama Y. Synthesis and optical and electrochemical properties of julolidine-structured pyrido[3,4-b]indole dye. Phys Chem Chem Phys 2017; 19:3565-3574. [DOI: 10.1039/c6cp08573c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The julolidine-structured pyrido[3,4-b]indole dye ET-1 possesses the ability to act as a calorimetric and fluorescent sensor for Brønsted and Lewis acids.
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Affiliation(s)
- Toshiaki Enoki
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| | - Keishi Matsuo
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| | - Joji Ohshita
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| | - Yousuke Ooyama
- Department of Applied Chemistry
- Graduate School of Engineering
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
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31
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Jiang F, Jin T, Zhu X, Tian Z, Do-Thanh CL, Hu J, Jiang DE, Wang H, Liu H, Dai S. Substitution Effect Guided Synthesis of Task-Specific Nanoporous Polycarbazoles with Enhanced Carbon Capture. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01342] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Feng Jiang
- State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Tian Jin
- State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Xiang Zhu
- Department
of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600, United States
| | - Ziqi Tian
- Department
of Chemistry, University of California, Riverside, Riverside, California 92521, United States
| | - Chi-Linh Do-Thanh
- Department
of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600, United States
| | - Jun Hu
- State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - De-en Jiang
- Department
of Chemistry, University of California, Riverside, Riverside, California 92521, United States
| | - Hualin Wang
- State
Environmental Protection Key Laboratory of Environmental Risk Assessment
and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
| | - Honglai Liu
- State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Sheng Dai
- Department
of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600, United States
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32
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Li H, Bi R, Chen T, Yuan K, Chen R, Tao Y, Zhang H, Zheng C, Huang W. Selectively Modulating Triplet Exciton Formation in Host Materials for Highly Efficient Blue Electrophosphorescence. ACS APPLIED MATERIALS & INTERFACES 2016; 8:7274-7282. [PMID: 26937742 DOI: 10.1021/acsami.5b10806] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The concept of limiting the triplet exciton formation to fundamentally alleviate triplet-involved quenching effects is introduced to construct host materials for highly efficient and stable blue phosphorescent organic light-emitting diodes (PhOLEDs). The low triplet exciton formation is realized by small triplet exciton formation fraction and rate with high binding energy and high reorganization energy of triplet exciton. Demonstrated in two analogue molecules in conventional donor-acceptor molecule structure for bipolar charge injection and transport with nearly the same frontier orbital energy levels and triplet excited energies, the new concept host material shows significantly suppressed triplet exciton formation in the host to avoid quenching effects, leading to much improved device efficiencies and stabilities. The low-voltage-driving blue PhOLED devices exhibit maximum efficiencies of 43.7 cd A(-1) for current efficiency, 32.7 lm W(-1) for power efficiency, and 20.7% for external quantum efficiency with low roll-off and remarkable relative quenching effect reduction ratio up to 41%. Our fundamental solution for preventing quenching effects of long-lived triplet excitons provides exciting opportunities for fabricating high-performance devices using the advanced host materials with intrinsically small triplet exciton formation cross section.
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Affiliation(s)
- Huanhuan Li
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
| | - Ran Bi
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
| | - Ting Chen
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
| | - Kai Yuan
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
| | - Runfeng Chen
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
| | - Ye Tao
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
| | - Hongmei Zhang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
| | - Chao Zheng
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
| | - Wei Huang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech) , 30 South Puzhu Road, Nanjing 211816, China
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33
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Tian G, Jiang Y, Wu P, Huang J, Zou Q, Wang Q, Mu H, Su J. Pure hydrocarbon host materials based on spirofluorene with excellent performances for green phosphorescent light-emitting devices. NEW J CHEM 2016. [DOI: 10.1039/c6nj01872f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Four novel pure hydrocarbon spirofluorene-based compounds were fully investigated for green electrophosphorescent devices.
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Affiliation(s)
- Guojian Tian
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Yongxin Jiang
- Department of Physics
- School of Science
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Panpan Wu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Jinhai Huang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Qi Zou
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power
- Shanghai University of Electric Power
- Shanghai 200090
- P. R. China
| | - Qiaochun Wang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Haichuan Mu
- Department of Physics
- School of Science
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Jianhua Su
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
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34
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Cui LS, Xie YM, Wang YK, Zhong C, Deng YL, Liu XY, Jiang ZQ, Liao LS. Pure Hydrocarbon Hosts for ≈100% Exciton Harvesting in Both Phosphorescent and Fluorescent Light-Emitting Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:4213-4217. [PMID: 26095076 DOI: 10.1002/adma.201501376] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 05/14/2015] [Indexed: 06/04/2023]
Affiliation(s)
- Lin-Song Cui
- 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, PR China
| | - Yue-Min Xie
- 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, PR China
| | - Ya-Kun Wang
- 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, PR China
| | - Cheng Zhong
- Department of Chemistry, Wuhan University, Wuhan, 430072, PR China
| | - Ya-Li Deng
- 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, PR China
| | - 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, PR China
| | - Zuo-Quan Jiang
- 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, PR 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, PR China
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35
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Konidena RK, Thomas KRJ, Kumar S, Wang YC, Li CJ, Jou JH. Phenothiazine Decorated Carbazoles: Effect of Substitution Pattern on the Optical and Electroluminescent Characteristics. J Org Chem 2015; 80:5812-23. [DOI: 10.1021/acs.joc.5b00787] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Rajendra Kumar Konidena
- 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
| | - Sudhir Kumar
- Department
of Material Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Ya-Chi Wang
- Department
of Material Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Chieh-Ju Li
- Department
of Material Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Jwo-Huei Jou
- Department
of Material Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
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36
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Shu Y, Levine BG. Simulated evolution of fluorophores for light emitting diodes. J Chem Phys 2015; 142:104104. [DOI: 10.1063/1.4914294] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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37
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Zhu L, Cao X, Qiu R, Iwasaki T, Reddy VP, Xu X, Yin SF, Kambe N. Copper-mediated thiolation of carbazole derivatives and related N-heterocycle compounds. RSC Adv 2015. [DOI: 10.1039/c5ra04965b] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Cu-mediated direct thiolation of carbazole derivatives with disulfides via C–H bond cleavage to give diaryl and alkyl aryl sulfides which easily extends to the synthesis of thioethers with a benzo[h]quinolone, 2-phenylquinoline or indole moiety in satisfactory yields.
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Affiliation(s)
- Longzhi Zhu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha
- P.R. China
| | - Xin Cao
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha
- P.R. China
| | - Renhua Qiu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha
- P.R. China
| | - Takanori Iwasaki
- Department of Applied Chemistry
- Graduate School of Engineering
- Osaka University
- Suita
- Japan
| | | | - Xinhua Xu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha
- P.R. China
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha
- P.R. China
| | - Nobuaki Kambe
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha
- P.R. China
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38
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Kim SM, Byeon SY, Hwang SH, Lee JY. Rational design of host materials for phosphorescent organic light-emitting diodes by modifying the 1-position of carbazole. Chem Commun (Camb) 2015; 51:10672-5. [DOI: 10.1039/c5cc02188j] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel carbazole moiety with bromine at the 1-position of carbazole was synthesized and four carbazole compounds derived from the 1-position modified carbazole were developed as the host materials for phosphorescent organic light-emitting diodes.
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Affiliation(s)
- Sung Moo Kim
- School of Chemical Engineering
- Sungkyunkwan University
- Suwon
- Republic of Korea
| | - Sung Yong Byeon
- Department of Polymer Science and Engineering
- Dankook University
- Yongin
- Republic of Korea
| | - Seok-Ho Hwang
- Department of Polymer Science and Engineering
- Dankook University
- Yongin
- Republic of Korea
| | - Jun Yeob Lee
- School of Chemical Engineering
- Sungkyunkwan University
- Suwon
- Republic of Korea
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39
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Mei L, Hu J, Cao X, Wang F, Zheng C, Tao Y, Zhang X, Huang W. The inductive-effect of electron withdrawing trifluoromethyl for thermally activated delayed fluorescence: tunable emission from tetra- to penta-carbazole in solution processed blue OLEDs. Chem Commun (Camb) 2015; 51:13024-7. [DOI: 10.1039/c5cc04126k] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Non-conjugated trifluoromethyl was introduced as a new acceptor in TADF OLEDs. 5CzCF3Ph exhibited significantly higher efficiency than 4CzCF3Ph due to its lower ΔEST value.
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Affiliation(s)
- Ling Mei
- Key Lab for Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Jia Hu
- Key Lab for Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Xudong Cao
- Key Lab for Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Fangfang Wang
- Key Lab for Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Chao Zheng
- Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials
- Nanjing University of Posts and Telecommunications
- Nanjing 210046
- P. R. China
| | - Youtian Tao
- Key Lab for Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Xinwen Zhang
- Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials
- Nanjing University of Posts and Telecommunications
- Nanjing 210046
- P. R. China
| | - Wei Huang
- Key Lab for Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University
- Nanjing
- P. R. China
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40
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Tang C, Bi R, Cao X, Fan C, Tao Y, Wang S, Zhang H, Huang W. Cost-effective synthesis of α-carboline/pyridine hybrid bipolar host materials with improved electron-transport ability for efficient blue phosphorescent OLEDs. RSC Adv 2015. [DOI: 10.1039/c5ra13723c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
By employing α-carboline to replace carbazole, comparative hole-transport and significantly improved electron-transport ability of the material has been obtained and ultimately reached the new bipolar balance in blue phosphorescent OLEDs.
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Affiliation(s)
- Chao Tang
- Institute of Advanced Materials
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Ran Bi
- Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials
- Nanjing University of Posts and Telecommunications
- Nanjing 210046
- P. R. China
| | - Xudong Cao
- Institute of Advanced Materials
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Cong Fan
- Institute of Advanced Materials
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Youtian Tao
- Institute of Advanced Materials
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Shifan Wang
- Institute of Advanced Materials
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Hongmei Zhang
- Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials
- Nanjing University of Posts and Telecommunications
- Nanjing 210046
- P. R. China
| | - Wei Huang
- Institute of Advanced Materials
- Nanjing Tech University
- Nanjing
- P. R. China
- Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials
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41
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Chen S, Wu Y, Zhao Y, Fang D. Deep blue organic light-emitting devices enabled by bipolar phenanthro[9,10-d]imidazole derivatives. RSC Adv 2015. [DOI: 10.1039/c5ra13814k] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel phenanthroimidazole derivatives with D–π–A structures have been successfully designed and prepared. Non-doped organic light emitting diodes (OLEDs) were fabricated by employing the compounds, which display deep blue emission.
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Affiliation(s)
- Shuo Chen
- State Key Laboratory for Turbulence and Complex System
- College of Engineering
- Peking University
- Beijing 100871
- P. R. China
| | - Yukun Wu
- State Key Laboratory on Integrated Optoelectronics
- College of Electronics Science and Engineering
- Jilin University
- Changchun 130012
- P. R. China
| | - Yi Zhao
- State Key Laboratory on Integrated Optoelectronics
- College of Electronics Science and Engineering
- Jilin University
- Changchun 130012
- P. R. China
| | - Daining Fang
- State Key Laboratory for Turbulence and Complex System
- College of Engineering
- Peking University
- Beijing 100871
- P. R. China
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