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Yu YJ, Feng ZQ, Meng XY, Chen L, Liu FM, Yang SY, Zhou DY, Liao LS, Jiang ZQ. Introducing Spiro-locks into the Nitrogen/Carbonyl System towards Efficient Narrowband Deep-blue Multi-resonance TADF Emitters. Angew Chem Int Ed Engl 2023; 62:e202310047. [PMID: 37593817 DOI: 10.1002/anie.202310047] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/15/2023] [Accepted: 08/16/2023] [Indexed: 08/19/2023]
Abstract
The current availability of multi-resonance thermally activated delayed fluorescence (MR-TADF) materials with excellent color purity and high device efficiency in the deep-blue region is appealing. To address this issue in the emerged nitrogen/carbonyl MR-TADF system, we propose a spiro-lock strategy. By incorporating spiro functionalization into a concise molecular skeleton, a series of emitters (SFQ, SOQ, SSQ, and SSeQ) can enhance molecular rigidity, blue-shift the emission peak, narrow the emission band, increase the photoluminescence quantum yield by over 92 %, and suppress intermolecular interactions in the film state. The referent CZQ without spiro structure has a more planar skeleton, and its bluer emission in the solution state redshifts over 40 nm with serious spectrum broadening and a low PLQY in the film state. As a result, SSQ achieves an external quantum efficiency of 25.5 % with a peak at 456 nm and a small full width at half maximum of 31 nm in a simple unsensitized device, significantly outperforming CZQ. This work discloses the importance of spiro-junction in modulating deep-blue MR-TADF emitters.
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Affiliation(s)
- You-Jun Yu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 215123, Suzhou, Jiangsu, P. R. China
| | - Zi-Qi Feng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 215123, Suzhou, Jiangsu, P. R. China
| | - Xin-Yue Meng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 215123, Suzhou, Jiangsu, P. R. China
| | - Long Chen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 215123, Suzhou, Jiangsu, P. R. China
| | - Fu-Ming Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 215123, Suzhou, Jiangsu, P. R. China
| | - Sheng-Yi Yang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 215123, Suzhou, Jiangsu, P. R. China
| | - Dong-Ying Zhou
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 215123, Suzhou, Jiangsu, P. R. China
| | - Liang-Sheng Liao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 215123, Suzhou, Jiangsu, P. R. China
- Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, 999078, Taipa, Macau SAR, China
| | - Zuo-Quan Jiang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 215123, Suzhou, Jiangsu, P. R. China
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Siddiqui I, Kumar S, Tsai YF, Gautam P, Shahnawaz, Kesavan K, Lin JT, Khai L, Chou KH, Choudhury A, Grigalevicius S, Jou JH. Status and Challenges of Blue OLEDs: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2521. [PMID: 37764550 PMCID: PMC10536903 DOI: 10.3390/nano13182521] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/04/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023]
Abstract
Organic light-emitting diodes (OLEDs) have outperformed conventional display technologies in smartphones, smartwatches, tablets, and televisions while gradually growing to cover a sizable fraction of the solid-state lighting industry. Blue emission is a crucial chromatic component for realizing high-quality red, green, blue, and yellow (RGBY) and RGB white display technologies and solid-state lighting sources. For consumer products with desirable lifetimes and efficiency, deep blue emissions with much higher power efficiency and operation time are necessary prerequisites. This article reviews over 700 papers covering various factors, namely, the crucial role of blue emission for full-color displays and solid-state lighting, the performance status of blue OLEDs, and the systematic development of fluorescent, phosphorescent, and thermally activated delayed fluorescence blue emitters. In addition, various challenges concerning deep blue efficiency, lifetime, and approaches to realizing deeper blue emission and higher efficacy for blue OLED devices are also described.
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Affiliation(s)
- Iram Siddiqui
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Sudhir Kumar
- Institute for Chemical and Bioengineering, ETH Zürich, 8093 Zürich, Switzerland
| | - Yi-Fang Tsai
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Prakalp Gautam
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Shahnawaz
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Kiran Kesavan
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Jin-Ting Lin
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Luke Khai
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Kuo-Hsien Chou
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Abhijeet Choudhury
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Saulius Grigalevicius
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, LT-50254 Kaunas, Lithuania
| | - Jwo-Huei Jou
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
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Zhao L, Duan C, Ding D, Liu S, Xia D, Guo Y, Xu H, Baumgarten M. Super rigid tris-spirobifluorenes: Syntheses and properties. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.02.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Okamoto K, Kawai S, Kozawa T. Formation of intramolecular dimer radical ions of diphenyl sulfones. Sci Rep 2020; 10:19823. [PMID: 33188267 PMCID: PMC7666127 DOI: 10.1038/s41598-020-76907-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 11/04/2020] [Indexed: 11/16/2022] Open
Abstract
Dimer radical ions of aromatic molecules in which excess charge is localized in a pair of rings have been extensively investigated. While dimer radical cations of aromatics have been previously produced in the condensed phase, the number of molecules that form dimer anions is very limited. In this study, we report the formation of intramolecular dimer radical ions (cations and anions) of diphenyl sulfone derivatives (DPs) by electron beam pulse radiolysis in the liquid phase at room temperature. The density functional theory (DFT) calculations also showed the formation of the dimer radical ions. The torsion barrier of the phenyl ring of DPs was also calculated. It was found that the dimer radical ions show the larger barrier than the neutral state. Finally, stability of the dimer radical anion is dependent on not only the inductive effect of the sulfonyl group but the conjugation involving the d-orbital of the S atom and the phenyl rings.
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Affiliation(s)
- Kazumasa Okamoto
- The Institute of Scientific Research (ISIR), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka, 567-0047, Japan. .,Artificial Intelligence Research Center (AIRC-ISIR), ISIR, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka, 567-0047, Japan.
| | - Shunpei Kawai
- Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-0005, Japan
| | - Takahiro Kozawa
- The Institute of Scientific Research (ISIR), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka, 567-0047, Japan
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Liu X, Zhang Y, Fei X, Fung M, Fan J. Dispirocycles: Platforms for the Construction of High‐Performance Host Materials for Phosphorescent Organic Light‐Emitting Diodes. Chemistry 2019; 25:6788-6796. [DOI: 10.1002/chem.201806207] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 03/05/2019] [Indexed: 02/04/2023]
Affiliation(s)
- Xiang‐Yang Liu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of, Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM)Soochow University Suzhou Jiangsu 215123 P. R. China
| | - Yi‐Jie Zhang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of, Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM)Soochow University Suzhou Jiangsu 215123 P. R. China
| | - Xiyu Fei
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of, Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM)Soochow University Suzhou Jiangsu 215123 P. R. China
| | - Man‐Keung Fung
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of, Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM)Soochow University Suzhou Jiangsu 215123 P. R. China
| | - Jian Fan
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of, Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM)Soochow University Suzhou Jiangsu 215123 P. R. China
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Karpiuk J, Gawryś P, Karpiuk E, Suwińska K. Electron transfer across a spiro link: extreme solvatofluorochromism of a compact spiro-bridged N, N-dimethylaniline-phthalide dyad. Chem Commun (Camb) 2019; 55:8414-8417. [DOI: 10.1039/c9cc02933h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Ultrafast intramolecular electron transfer over a spiro link leads to record-breaking solvatofluorochromism [11 600 cm−1, from 357 (hexane) to 595 nm (acetonitrile)].
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Affiliation(s)
- Jerzy Karpiuk
- Institute of Physics
- Polish Academy of Sciences
- 02-668 Warsaw
- Poland
| | - Paweł Gawryś
- Institute of Physics
- Polish Academy of Sciences
- 02-668 Warsaw
- Poland
| | - Elena Karpiuk
- Institute of Physics
- Polish Academy of Sciences
- 02-668 Warsaw
- Poland
| | - Kinga Suwińska
- Faculty of Mathematics and Natural Sciences
- Cardinal Stefan Wyszyński University in Warsaw
- 01-938 Warsaw
- Poland
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Schramm S, Weiß D. Fluorescent heterocycles: Recent trends and new developments. ADVANCES IN HETEROCYCLIC CHEMISTRY 2019. [DOI: 10.1016/bs.aihch.2018.10.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Liu B, Zhu Z, Zhao J, He D, Wang Z, Luo C, Tong Q, Lee C, Tao S. Ternary Acceptor–Donor–Acceptor Asymmetrical Phenanthroimidazole Molecule for Highly Efficient Near‐Ultraviolet Electroluminescence with External Quantum Efficiency (EQE) >4 %. Chemistry 2018; 24:15566-15571. [DOI: 10.1002/chem.201801822] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 07/31/2018] [Indexed: 01/12/2023]
Affiliation(s)
- Bin Liu
- Department of Chemistry and Key Laboratory for, Preparation and Application of Ordered Structural Materials of, Guangdong Province Shantou University Guangdong 515063 P.R. China
- Department of Physics Fudan University Shanghai 200433 P.R. China
| | - Ze‐Lin Zhu
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry City University of Hong Kong Hong Kong SAR P.R. China
| | - Jue‐Wen Zhao
- School of Optoelectronic Information University of Electronic Science and Technology of China (UESTC) Chengdu 610054 P.R. China
| | - Dan He
- Department of Chemistry and Key Laboratory for, Preparation and Application of Ordered Structural Materials of, Guangdong Province Shantou University Guangdong 515063 P.R. China
| | - Zhong‐Yi Wang
- Department of Chemistry and Key Laboratory for, Preparation and Application of Ordered Structural Materials of, Guangdong Province Shantou University Guangdong 515063 P.R. China
| | - Cheng‐Yuan Luo
- Department of Chemistry and Key Laboratory for, Preparation and Application of Ordered Structural Materials of, Guangdong Province Shantou University Guangdong 515063 P.R. China
| | - Qing‐Xiao Tong
- Department of Chemistry and Key Laboratory for, Preparation and Application of Ordered Structural Materials of, Guangdong Province Shantou University Guangdong 515063 P.R. China
| | - Chun‐Sing Lee
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry City University of Hong Kong Hong Kong SAR P.R. China
| | - Si‐Lu Tao
- School of Optoelectronic Information University of Electronic Science and Technology of China (UESTC) Chengdu 610054 P.R. China
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Tang X, Liu XY, Yuan Y, Wang YJ, Li HC, Jiang ZQ, Liao LS. High-Efficiency White Organic Light-Emitting Diodes Integrating Gradient Exciplex Allocation System and Novel D-Spiro-A Materials. ACS APPLIED MATERIALS & INTERFACES 2018; 10:29840-29847. [PMID: 30095891 DOI: 10.1021/acsami.8b09418] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
How to maintain high power efficiency (PE) and color stability under operating brightness is critical for the white organic light-emitting diodes (WOLEDs). To this end, two novel spiro-type materials STPy3 and STPy4 were designed. These materials could act as a single host and achieve a remarkable external quantum efficiency of 27.5% at 1000 cd m-2; to further optimize the PEs of OLEDs, STPy3/4 and PO-T2T were used as co-host-induced exciplexes, which enhanced the PE of green OLED to over 148.0 lm W-1. Unfortunately, the lower triplet energy level of exciplexes than blue emitters implied it is commonly unsuitable to fabricate WOLEDs. Herein, a new allocation of gradient exciplex (AGE) strategy was developed in which the formed excitons could be rationally allocated in a consequently doped nonuniform profile. The AGE incorporated the advantages of the exciplex with an ultralow turn-on voltage of 2.3 V and efficiency stability of spiro materials. The PE at 1000 cd m-2 was enhanced to 72.7 lm W-1, representing the first exciplex WOLED with the performance exceeding that of conventional fluorescent tubes.
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Affiliation(s)
- Xun Tang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM) , Soochow University , Suzhou 215123 , China
| | - Xiang-Yang Liu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM) , Soochow University , Suzhou 215123 , China
| | - Yi Yuan
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM) , Soochow University , Suzhou 215123 , China
| | - Yong-Jie Wang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM) , Soochow University , Suzhou 215123 , China
| | - Hong-Cheng Li
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM) , Soochow University , Suzhou 215123 , China
| | - Zuo-Quan Jiang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM) , Soochow University , Suzhou 215123 , China
| | - Liang-Sheng Liao
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM) , Soochow University , Suzhou 215123 , China
- Institute of Organic Optoelectronics , Jiangsu Industrial Technology Research Institute (JITRI) , Wujiang, Suzhou , Jiangsu 215211 , China
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10
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Acridine-Triphenylamine Based Hole-Transporting and Hole-Injecting Material for Highly Efficient Phosphorescent-Based Organic Light Emitting Diodes. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8071168] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In this study, triphenylamine-based hole-transporting material 4-(9,9-diphenylacridin-10(9H)-yl)-N-(4-(9,9-diphenylacridin-10(9H)-yl) phenyl)-N-phenylaniline (TPA-1A) was designed and synthesized by using single-step Buchwald–Hartwig coupling reaction with higher yield percentage of 76%. Our synthesized TPA-1A showed excellent thermal stability, with a higher glass transition temperature of 176 °C and decomposition temperature of 474 °C at 5% weight reduction. TPA-1A based green phosphorescent organic light emitting diodes (PhOLED) device was fabricated to investigate the device properties and compare it with the similar reference N,N′-Di(1-naphthyl)-N,N′-diphenyl-(1,1′-biphenyl)-4,4′-diamine (NPB)based device. The TPA-1A-based PhOLED demonstrated an excellent current and power efficiency of 49.13 cd/A and 27.56 lm/W, respectively. Moreover, TPA-1A demonstrated better hole injection efficiencies as well. The overall efficiencies were better than the reference NPB-based device.
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Chen WC, Yuan Y, Zhu ZL, Ni SF, Jiang ZQ, Liao LS, Wong FL, Lee CS. A novel spiro-annulated benzimidazole host for highly efficient blue phosphorescent organic light-emitting devices. Chem Commun (Camb) 2018; 54:4541-4544. [DOI: 10.1039/c8cc00903a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel host featuring a spiro-annulated benzimidazole configuration is exploited for blue phosphorescent organic light-emitting devices (PhOLEDs).
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Affiliation(s)
- Wen-Cheng Chen
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry
- City University of Hong Kong
- Hong Kong SAR
- P. R. China
| | - Yi Yuan
- 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
- P. R. China
| | - Ze-Lin Zhu
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry
- City University of Hong Kong
- Hong Kong SAR
- P. R. China
| | - Shao-Fei Ni
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- P. R. 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
- P. R. 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
- P. R. China
| | - Fu-Lung Wong
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry
- City University of Hong Kong
- Hong Kong SAR
- P. R. China
| | - Chun-Sing Lee
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry
- City University of Hong Kong
- Hong Kong SAR
- P. R. China
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Peltier JD, Heinrich B, Donnio B, Rault-Berthelot J, Jacques E, Poriel C. Electron-Deficient Dihydroindaceno-Dithiophene Regioisomers for n-Type Organic Field-Effect Transistors. ACS APPLIED MATERIALS & INTERFACES 2017; 9:8219-8232. [PMID: 28192671 DOI: 10.1021/acsami.6b16333] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this work, we wish to report the first member of a new family of organic semiconductors constructed on a meta dihydroindacenodithiophene core, that is, 2,2'-(2,8-dihexyl-4,6-dihydro-s-indaceno[1,2-b:7,6-b']dithiophene-4,6-diylidene)dimalononitrile (called meta-IDT(═C(CN)2)2). The properties of this molecule were studied in detail through a structure-properties relationship study with its regioisomer, that is, 2,2'-(2,7-dihexyl-4,9-dihydro-s-indaceno[1,2-b:5,6-b']dithiophene-4,9-diylidene)dimalononitrile (para-IDT(═C(CN)2)2) (see isomer structures in blue in Chart 2). The influence of the bridge functionalization was also investigated by comparison with their diketone analogues meta-IDT(═O)2 and para-IDT(═O)2. This study sheds light on the impact of regioisomerism on the electronic properties at the molecular level (electrochemistry, absorption spectroscopy, molecular modeling) and also on the supramolecular arrangement, and finally on the organic field-effect transistors (OFET) performances and stabilities. The significant effect of self-assembled monolayers of 4-(dimethylamino)benzenethiol grafted on the gold drain and source electrodes or of the use of flexible substrate (polyethylene naphtalate) instead of glass on the OFET performances and stabilities are also reported. In the light of these results (maximum mobility reaching 7.1 × 10-2 cm2 V-1 cm-1, high IDon/IDoff of 2.3 × 107, and subthreshold swing of 1.2 V/dec), we believe that the present OFETs can be further used to construct electronic circuits.
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Affiliation(s)
- Jean-David Peltier
- Institut des Sciences Chimiques de Rennes, Équipe Matière Condensée et Systèmes Électroactifs, UMR CNRS 6226 , Bât.10C, Campus de Beaulieu, 35042 Rennes cedex, France
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, CNRS-Université de Strasbourg , 23 rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - Bertrand Donnio
- Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, CNRS-Université de Strasbourg , 23 rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - Joëlle Rault-Berthelot
- Institut des Sciences Chimiques de Rennes, Équipe Matière Condensée et Systèmes Électroactifs, UMR CNRS 6226 , Bât.10C, Campus de Beaulieu, 35042 Rennes cedex, France
| | - Emmanuel Jacques
- Institut d'Électronique et des Télécommunications de Rennes, Département Microélectronique & Microcapteurs, UMR CNRS 6164 , Bât.11B, Université Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Cyril Poriel
- Institut des Sciences Chimiques de Rennes, Équipe Matière Condensée et Systèmes Électroactifs, UMR CNRS 6226 , Bât.10C, Campus de Beaulieu, 35042 Rennes cedex, France
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Quinton C, Thiery S, Jeannin O, Tondelier D, Geffroy B, Jacques E, Rault-Berthelot J, Poriel C. Electron-Rich 4-Substituted Spirobifluorenes: Toward a New Family of High Triplet Energy Host Materials for High-Efficiency Green and Sky Blue Phosphorescent OLEDs. ACS APPLIED MATERIALS & INTERFACES 2017; 9:6194-6206. [PMID: 28111937 DOI: 10.1021/acsami.6b14285] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report herein a detailed structure-properties relationship study of the first examples of electron-rich 4-substituted spirobifluorenes for organic electronic applications, namely, 4-phenyl-N-carbazole-spirobifluorene (4-PhCz-SBF) and 4-(3,4,5-trimethoxyphenyl)-spirobifluorene (4-Ph(OMe)3-SBF). The incorporation of the electron-rich moieties in the ortho position of the biphenyl linkage (position C4) induces unique properties, very different from those previously described in the literature for this family of semiconductors. Both dyes can be readily synthesized, possess high triplet energies and excellent thermal stability, and their HOMO energy levels are highly increased compared to those of other 4-substituted SBFs. We also provide in this work the first rationalization of the peculiar fluorescence of 4-substituted SBFs. Finally, the present dyes have been successfully incorporated as host in green and blue phosphorescent organic light-emitting diodes with high performance either for the green (EQE of 20.2%) or the blue color (EQE of 9.6%). These performances are, to the best of our knowledge, among the highest reported to date for 4-substituted SBF derivatives.
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Affiliation(s)
- Cassandre Quinton
- Institut des Sciences Chimiques de Rennes - UMR CNRS 6226, Université Rennes 1 , 35042 Rennes, France
| | - Sébastien Thiery
- Institut des Sciences Chimiques de Rennes - UMR CNRS 6226, Université Rennes 1 , 35042 Rennes, France
| | - Olivier Jeannin
- Institut des Sciences Chimiques de Rennes - UMR CNRS 6226, Université Rennes 1 , 35042 Rennes, France
| | - Denis Tondelier
- LPICM, CNRS, Ecole Polytechnique, Université Paris Saclay , 91128 Palaiseau, France
| | - Bernard Geffroy
- LPICM, CNRS, Ecole Polytechnique, Université Paris Saclay , 91128 Palaiseau, France
- LICSEN, NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay , Gif-sur-Yvette CEDEX 91191, France
| | - Emmanuel Jacques
- UMR CNRS 6164-Institut d'Électronique et des Télécommunications de Rennes- Département Microélectronique & Microcapteurs, Bât. 11B, Université Rennes 1 , Campus de Beaulieu, Rennes CEDEX 35042, France
| | - Joëlle Rault-Berthelot
- Institut des Sciences Chimiques de Rennes - UMR CNRS 6226, Université Rennes 1 , 35042 Rennes, France
| | - Cyril Poriel
- Institut des Sciences Chimiques de Rennes - UMR CNRS 6226, Université Rennes 1 , 35042 Rennes, France
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Guan J, Zhang F, Zhang Y, Liu Z, Wu Y, Xia D. Synthesis, structure and optoelectronic properties of rigid 3D tetraindeno-fused spirofluorene with thioxanthene or dioxothioxanthene substitutes. CrystEngComm 2017. [DOI: 10.1039/c7ce01407d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This work reports the synthesis and characterization of two blue emitters. Their 3D rigid structures are the appealing feature.
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Affiliation(s)
- Jing Guan
- Department of Organic Chemistry
- College of Pharmacy
- Harbin Medical University
- 150081 Harbin
- P. R. China
| | - Fangyuan Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- 150001 Harbin
- P. R. China
| | - Yijiao Zhang
- Department of Organic Chemistry
- College of Pharmacy
- Harbin Medical University
- 150081 Harbin
- P. R. China
| | - Zhigang Liu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- 150001 Harbin
- P. R. China
| | - Yanli Wu
- Department of Organic Chemistry
- College of Pharmacy
- Harbin Medical University
- 150081 Harbin
- P. R. China
| | - Debin Xia
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- 150001 Harbin
- P. R. China
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15
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Poriel C, Rault-Berthelot J, Thiery S, Quinton C, Jeannin O, Biapo U, Tondelier D, Geffroy B. 9H-Quinolino[3,2,1-k]phenothiazine: A New Electron-Rich Fragment for Organic Electronics. Chemistry 2016; 22:17930-17935. [PMID: 27643709 DOI: 10.1002/chem.201603659] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Indexed: 01/25/2023]
Abstract
A new electron-rich fragment, namely the quinolinophenothiazine (QPTZ) is reported. The QPTZ fragment incorporated in spiroconfigured materials leads to higher performance in blue Phosphorescent OLEDs than structurally related phenylacridine and indoloacridine based materials (increasing the HOMO energy level, modulating the spin-orbit coupling, etc.) and leads to highly efficient blue phosphorescent organic light emitting diodes, indicating the strong potential of this new molecular fragment in organic electronics.
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Affiliation(s)
- Cyril Poriel
- UMR CNRS 6226-ISCR-, Université de Rennes 1, 35042, Rennes cedex, France
| | | | - Sébastien Thiery
- UMR CNRS 6226-ISCR-, Université de Rennes 1, 35042, Rennes cedex, France
| | - Cassandre Quinton
- UMR CNRS 6226-ISCR-, Université de Rennes 1, 35042, Rennes cedex, France
| | - Olivier Jeannin
- UMR CNRS 6226-ISCR-, Université de Rennes 1, 35042, Rennes cedex, France
| | - Urelle Biapo
- LPICM, CNRS, Ecole Polytechnique, Université Paris Saclay, 91128, Palaiseau, France
| | - Denis Tondelier
- LPICM, CNRS, Ecole Polytechnique, Université Paris Saclay, 91128, Palaiseau, France
| | - Bernard Geffroy
- LPICM, CNRS, Ecole Polytechnique, Université Paris Saclay, 91128, Palaiseau, France.,LICSEN, NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay, 91191, Gif-sur-Yvette Cedex, France
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16
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Lee YT, Chang YT, Wu CL, Golder J, Chen CT, Chen CT. SimCP3—An Advanced Homologue of SimCP2 as a Solution-Processed Small Molecular Host Material for Blue Phosphorescence Organic Light-Emitting Diodes. Molecules 2016; 21:molecules21101315. [PMID: 27706060 PMCID: PMC6273694 DOI: 10.3390/molecules21101315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 09/24/2016] [Accepted: 09/27/2016] [Indexed: 11/16/2022] Open
Abstract
We have overcome the synthetic difficulty of 9,9′,9′′,9′′′,9′′′′,9′′′′′-((phenylsilanetriyl)tris(benzene-5,3,1-triyl))hexakis(9H-carbazole) (SimCP3) an advanced homologue of previously known SimCP2 as a solution-processed, high triplet gap energy host material for a blue phosphorescence dopant. A series of organic light-emitting diodes based on blue phosphorescence dopant iridium (III) bis(4,6-difluorophenylpyridinato)picolate, FIrpic, were fabricated and tested to demonstrate the validity of solution-processed SimCP3 in the device fabrication.
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Affiliation(s)
- Yi-Ting Lee
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
| | - Yung-Ting Chang
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan.
| | - Cheng-Lung Wu
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan.
| | - Jan Golder
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30050, Taiwan.
| | - Chin-Ti Chen
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan.
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30050, Taiwan.
| | - Chao-Tsen Chen
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
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17
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Chan CY, Wong YC, Chan MY, Cheung SH, So SK, Yam VWW. Bifunctional Heterocyclic Spiro Derivatives for Organic Optoelectronic Devices. ACS APPLIED MATERIALS & INTERFACES 2016; 8:24782-24792. [PMID: 27598859 DOI: 10.1021/acsami.6b09211] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A series of heterocyclic spiro derivatives has been successfully synthesized and characterized by photophysical and electrochemical studies. Taking advantage of their excellent hole-transporting properties, highly efficient small-molecular organic photovoltaic devices based on these heterocyclic compounds as donors with very low dopant concentrations have been prepared; particularly, a high open-circuit voltage of up to 1.10 V and a power conversion efficiency of up to 5.12% have been realized. In addition, most of these heterocyclic spiro derivatives are found to be highly emissive in solutions with photoluminescence quantum yields of up to 0.91, and high-performance deep-blue-emitting organic light-emitting diodes (OLEDs) have been achieved. Such devices exhibit a stable deep blue emission with CIE coordinates of (0.16, 0.04) and high external quantum efficiencies of up to 4.7%, which is one of the best values among the reported OLEDs with CIEy < 0.08.
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Affiliation(s)
- Chin-Yiu Chan
- Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong
| | - Yi-Chun Wong
- Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong
| | - Mei-Yee Chan
- Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong
| | - Sin-Hang Cheung
- Department of Physics, Hong Kong Baptist University , Kowloon Tong, Hong Kong
| | - Shu-Kong So
- Department of Physics, Hong Kong Baptist University , Kowloon Tong, Hong Kong
| | - Vivian Wing-Wah Yam
- Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong
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18
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Xue MM, Huang CC, Yuan Y, Cui LS, Li YX, Wang B, Jiang ZQ, Fung MK, Liao LS. De Novo Design of Boron-Based Host Materials for Highly Efficient Blue and White Phosphorescent OLEDs with Low Efficiency Roll-Off. ACS APPLIED MATERIALS & INTERFACES 2016; 8:20230-20236. [PMID: 27438586 DOI: 10.1021/acsami.6b05064] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Borane is an excellent electron-accepting species, and its derivatives have been widely used in a variety of fields. However, the use of borane derivatives as host materials in OLEDs has rarely reported because the device performance is generally not satisfactory. In this work, two novel spiro-bipolar hosts with incorporated borane were designed and synthesized. The strategies used in preparing these materials were to increase the spatial separation of the highest occupied molecular orbitals (HOMOs) and lowest unoccupied molecular orbitals (LUMOs) in the molecules, tune the connecting positions of functional groups, and incorporate specific functional groups with desirable thermal stability. Based on these designs, phosphorescent OLEDs with borane derivatives as hosts and with outstanding device performances were obtained. In particular, devices based on SAF-3-DMB/FIrpic exhibited an external quantum efficiency (EQE) of >25%. More encouragingly, the device was found to have quite a low efficiency roll-off, giving an efficiency of >20% even at a high brightness of 10000 cd/m(2). Furthermore, the EQE of the three-color-based (R + G + B) white OLED employing SAF-3-DMB as a host was also as high as 22.9% with CIE coordinates of (x, y) = (0.40, 0.48). At a brightness of 5000 cd/m(2), there was only a 3% decrease in EQE from its maximum value, implying a very low efficiency roll-off.
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Affiliation(s)
- Miao-Miao Xue
- 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, Jiangsu 215123, P.R. China
| | - Chen-Chao Huang
- 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, Jiangsu 215123, P.R. China
| | - Yi Yuan
- 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, Jiangsu 215123, P.R. China
| | - 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, Jiangsu 215123, P.R. China
| | - Yong-Xi Li
- 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, Jiangsu 215123, P.R. China
| | - Bo 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, Jiangsu 215123, P.R. 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, Jiangsu 215123, P.R. China
| | - Man-Keung Fung
- 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, Jiangsu 215123, P.R. 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, Jiangsu 215123, P.R. China
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19
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A new way towards high-efficiency thermally activated delayed fluorescence devices via external heavy-atom effect. Sci Rep 2016; 6:30178. [PMID: 27439967 PMCID: PMC4954963 DOI: 10.1038/srep30178] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 06/28/2016] [Indexed: 11/08/2022] Open
Abstract
Thermally activated delayed fluorescence (TADF) mechanism is a significant method that enables the harvesting of both triplet and singlet excitons for emission. However, up to now most efforts have been devoted to dealing with the relation between singlet-triplet splitting (ΔEST) and fluorescence efficiency, while the significance of spin-orbit coupling (SOC) is usually ignored. In this contribution, a new method is developed to realize high-efficiency TADF-based devices through simple device-structure optimizations. By inserting an ultrathin external heavy-atom (EHA) perturber layer in a desired manner, it provides useful means of accelerating the T1 → S1 reverse intersystem crossing (RISC) in TADF molecules without affecting the corresponding S1 → T1 process heavily. Furthermore, this strategy also promotes the utilization of host triplets through Förster mechanism during host → guest energy transfer (ET) processes, which helps to get rid of the solely dependence upon Dexter mechanism. Based on this strategy, we have successfully raised the external quantum efficiency (EQE) in 4CzPN-based devices by nearly 38% in comparison to control devices. These findings provide keen insights into the role of EHA played in TADF-based devices, offering valuable guidelines for utilizing certain TADF dyes which possess high radiative transition rate but relatively inefficient RISC.
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20
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Thiery S, Tondelier D, Geffroy B, Jeannin O, Rault-Berthelot J, Poriel C. Modulation of the Physicochemical Properties of Donor-Spiro-Acceptor Derivatives through Donor Unit Planarisation: Phenylacridine versus Indoloacridine-New Hosts for Green and Blue Phosphorescent Organic Light-Emitting Diodes (PhOLEDs). Chemistry 2016; 22:10136-49. [DOI: 10.1002/chem.201600652] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Sébastien Thiery
- UMR CNRS 6226 “Institut des Sciences Chimiques de Rennes”; Université de Rennes 1-Campus de Beaulieu; 35042 Rennes Cedex France
| | - Denis Tondelier
- LPCIM, CNRS, École Polytechnique; Université Paris-Saclay; 91128 Palaiseau France
| | - Bernard Geffroy
- LICSEN, NIMBE, CEA, CNRS; Université Paris-Saclay; CEA Saclay; 91191 Gif Sur Yvette France
- LPCIM, CNRS, École Polytechnique; Université Paris-Saclay; 91128 Palaiseau France
| | - Olivier Jeannin
- UMR CNRS 6226 “Institut des Sciences Chimiques de Rennes”; Université de Rennes 1-Campus de Beaulieu; 35042 Rennes Cedex France
| | - Joëlle Rault-Berthelot
- UMR CNRS 6226 “Institut des Sciences Chimiques de Rennes”; Université de Rennes 1-Campus de Beaulieu; 35042 Rennes Cedex France
| | - Cyril Poriel
- UMR CNRS 6226 “Institut des Sciences Chimiques de Rennes”; Université de Rennes 1-Campus de Beaulieu; 35042 Rennes Cedex France
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21
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Ertl CD, Bolink HJ, Housecroft CE, Constable EC, Ortí E, Junquera-Hernández JM, Neuburger M, Shavaleev NM, Nazeeruddin MK, Vonlanthen D. Bis-Sulfone- and Bis-Sulfoxide-Spirobifluorenes: Polar Acceptor Hosts with Tunable Solubilities for Blue-Phosphorescent Light-Emitting Devices. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600247] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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22
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Energetic Tuning in Spirocyclic Conjugated Polymers. Polymers (Basel) 2016; 8:polym8010009. [PMID: 30979107 PMCID: PMC6432599 DOI: 10.3390/polym8010009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Revised: 12/07/2015] [Accepted: 12/28/2015] [Indexed: 11/21/2022] Open
Abstract
Precise control of the energy levels in a conjugated polymer is the key to allowing their exploitation in optoelectronic devices. The introduction of spirocycles into conjugated polymers has traditionally been used to enhance their solid state microstructure. Here we present a highly novel method of energetic tuning through the use of electronically active spirocyclic systems. By modifying the size and oxidation state of a heteroatom in an orthogonal spirocycle we demonstrate energetic fine tuning in both the absorption and emission of a conjugated polymer. Furthermore, the synthesis of highly novel triplet-decker spirocyclic conjugated polymers is presented. This new method of energetic manipulation in a conjugated polymer paves the way for future application targeted synthesis of polymers with electronically active spirocycles.
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23
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Liu XY, Liang F, Yuan Y, Cui LS, Jiang ZQ, Liao LS. An effective host material with thermally activated delayed fluorescence formed by confined conjugation for red phosphorescent organic light-emitting diodes. Chem Commun (Camb) 2016; 52:8149-51. [DOI: 10.1039/c6cc02856j] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A thermally activated delayed fluorescence material 2,6-bis(9,9-diphenylacridin-10(9H)-yl)pyrazine was designed and synthesized.
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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)
- Soochow University
- Suzhou 215123
- P. R. China
| | - Feng Liang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- P. R. China
| | - Yi Yuan
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- P. R. China
| | - Lin-Song Cui
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- P. R. China
| | - Zuo-Quan Jiang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- P. R. China
| | - Liang-Sheng Liao
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Soochow University
- Suzhou 215123
- P. R. China
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24
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Thiery S, Tondelier D, Geffroy B, Jacques E, Robin M, Métivier R, Jeannin O, Rault-Berthelot J, Poriel C. Spirobifluorene-2,7-dicarbazole-4′-phosphine Oxide as Host for High-Performance Single-Layer Green Phosphorescent OLED Devices. Org Lett 2015; 17:4682-5. [DOI: 10.1021/acs.orglett.5b02027] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sébastien Thiery
- UMR
CNRS 6226, Institut des Sciences Chimiques de Rennes, Rennes 35042 Cedex, France
| | - Denis Tondelier
- UMR
7647, LPICM, École Polytechnique,91128 Palaiseau, France
| | - Bernard Geffroy
- UMR
7647, LPICM, École Polytechnique,91128 Palaiseau, France
- LICSEN,
NIMBE UMR 3685, CEA Saclay, 91191 Gif Sur Yvette, France
| | - Emmanuel Jacques
- UMR
CNRS 6164, Institut d'Électronique et de Télécommunications de Rennes, Rennes 35042 Cedex, France
| | - Malo Robin
- UMR
CNRS 6164, Institut d'Électronique et de Télécommunications de Rennes, Rennes 35042 Cedex, France
| | - Rémi Métivier
- UMR
CNRS 8531, PPSM, ENS Cachan, 94235 Cachan, France
| | - Olivier Jeannin
- UMR
CNRS 6226, Institut des Sciences Chimiques de Rennes, Rennes 35042 Cedex, France
| | | | - Cyril Poriel
- UMR
CNRS 6226, Institut des Sciences Chimiques de Rennes, Rennes 35042 Cedex, France
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25
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Zhao X, Wu Y, Shi N, Li X, Zhao Y, Sun M, Ding D, Xu H, Xie L. Carbazole-endcapped Spiro[fluorene-9,9′-xanthene] with Large Steric Hindrance as Hole-transporting Host for Heavily-doped and High Performance OLEDs. CHINESE J CHEM 2015. [DOI: 10.1002/cjoc.201500252] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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26
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Romain M, Tondelier D, Geffroy B, Jeannin O, Jacques E, Rault-Berthelot J, Poriel C. Donor/Acceptor Dihydroindeno[1,2-a]fluorene and Dihydroindeno[2,1-b]fluorene: Towards New Families of Organic Semiconductors. Chemistry 2015; 21:9426-39. [DOI: 10.1002/chem.201500336] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Indexed: 01/30/2023]
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27
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Liao KY, Hsu CW, Chi Y, Hsu MK, Wu SW, Chang CH, Liu SH, Lee GH, Chou PT, Hu Y, Robertson N. Pt(II) Metal Complexes Tailored with a Newly Designed Spiro-Arranged Tetradentate Ligand; Harnessing of Charge-Transfer Phosphorescence and Fabrication of Sky Blue and White OLEDs. Inorg Chem 2015; 54:4029-38. [DOI: 10.1021/acs.inorgchem.5b00281] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Kuan-Yu Liao
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Che-Wei Hsu
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yun Chi
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Ming-Kuan Hsu
- Department of Photonics Engineering, Yuan Ze University, Chungli 32003, Taiwan
| | - Szu-Wei Wu
- Department of Photonics Engineering, Yuan Ze University, Chungli 32003, Taiwan
| | - Chih-Hao Chang
- Department of Photonics Engineering, Yuan Ze University, Chungli 32003, Taiwan
| | - Shih-Hung Liu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Gene-Hsiang Lee
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Pi-Tai Chou
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Yue Hu
- EaStCHEM, School of Chemistry, University of Edinburgh, King’s Buildings, West Mains Road, Edinburgh EH9 3 FJ, U.K
| | - Neil Robertson
- EaStCHEM, School of Chemistry, University of Edinburgh, King’s Buildings, West Mains Road, Edinburgh EH9 3 FJ, U.K
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28
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Kim M, Jeon SK, Lee JY. Molecular design approach of increasing the triplet energy of host materials using pyrrole as a core structure. RSC Adv 2015. [DOI: 10.1039/c5ra17469d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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29
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Kim GH, Lampande R, Kong JH, Lee JM, Kwon JH, Lee JK, Park JH. New bipolar host materials for high performance of phosphorescent green organic light-emitting diodes. RSC Adv 2015. [DOI: 10.1039/c5ra04593b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
New bipolar host materials with indenocarbazole and biphenyl pyrimidine moieties are successfully designed and synthesized. The host materials demonstrate excellent electro-optical properties and OLED device performances.
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Affiliation(s)
- Gyeong Heon Kim
- Department of Information Display
- Kyung Hee University
- Seoul
- Republic of Korea
| | - Raju Lampande
- Department of Information Display
- Kyung Hee University
- Seoul
- Republic of Korea
| | - Ji Hoon Kong
- Department of Information Display
- Kyung Hee University
- Seoul
- Republic of Korea
| | - Jung Min Lee
- Department of Information Display
- Kyung Hee University
- Seoul
- Republic of Korea
| | - Jang Hyuk Kwon
- Department of Information Display
- Kyung Hee University
- Seoul
- Republic of Korea
| | - Jae Kyun Lee
- Center for Neuro-Medicine
- Korea Institute of Science & Technology
- Seoul 136-791
- Republic of Korea
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