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Zhao W, Hu X, Kong F, Tang J, Yan D, Wang J, Liu Y, Sun Y, Sheng R, Chen P. Progress in Research on White Organic Light-Emitting Diodes Based on Ultrathin Emitting Layers. MICROMACHINES 2024; 15:626. [PMID: 38793199 PMCID: PMC11123088 DOI: 10.3390/mi15050626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/26/2024] [Accepted: 04/29/2024] [Indexed: 05/26/2024]
Abstract
White organic light-emitting diodes (WOLEDs) hold vast prospects in the fields of next-generation displays and solid-state lighting. Ultrathin emitting layers (UEMLs) have become a research hotspot because of their unique advantage. On the basis of simplifying the device structure and preparation process, they can achieve electroluminescent performance comparable to that of doped devices. In this review, we first discuss the working principles and advantages of WOLEDs based on UEML architecture, which can achieve low cost and more flexibility by simplifying the device structure and preparation process. Subsequently, the successful applications of doping and non-doping technologies in fluorescent, phosphorescent, and hybrid WOLEDs combined with UEMLs are discussed, and the operation mechanisms of these WOLEDs are emphasized briefly. We firmly believe that this article will bring new hope for the development of UEML-based WOLEDs in the future.
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Affiliation(s)
- Wencheng Zhao
- Institute of Physics and Electronic Information, Yantai University, Yantai 264005, China; (W.Z.); (X.H.); (F.K.); (J.T.); (D.Y.); (Y.S.)
| | - Xiaolin Hu
- Institute of Physics and Electronic Information, Yantai University, Yantai 264005, China; (W.Z.); (X.H.); (F.K.); (J.T.); (D.Y.); (Y.S.)
| | - Fankang Kong
- Institute of Physics and Electronic Information, Yantai University, Yantai 264005, China; (W.Z.); (X.H.); (F.K.); (J.T.); (D.Y.); (Y.S.)
| | - Jihua Tang
- Institute of Physics and Electronic Information, Yantai University, Yantai 264005, China; (W.Z.); (X.H.); (F.K.); (J.T.); (D.Y.); (Y.S.)
| | - Duxv Yan
- Institute of Physics and Electronic Information, Yantai University, Yantai 264005, China; (W.Z.); (X.H.); (F.K.); (J.T.); (D.Y.); (Y.S.)
| | - Jintao Wang
- Institute of Information Engineering, Yantai Institute of Technology, Yantai 264005, China;
| | - Yuru Liu
- Institute of Engineering Training Center, Yantai University, Yantai 264005, China;
| | - Yuanping Sun
- Institute of Physics and Electronic Information, Yantai University, Yantai 264005, China; (W.Z.); (X.H.); (F.K.); (J.T.); (D.Y.); (Y.S.)
| | - Ren Sheng
- Institute of Physics and Electronic Information, Yantai University, Yantai 264005, China; (W.Z.); (X.H.); (F.K.); (J.T.); (D.Y.); (Y.S.)
| | - Ping Chen
- Institute of Physics and Electronic Information, Yantai University, Yantai 264005, China; (W.Z.); (X.H.); (F.K.); (J.T.); (D.Y.); (Y.S.)
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Wei Y, Wang R, Wang M, Hu L, Zhang X, Xu Y, Liu Y, Lan F, Chen J. Research status and prospects of organic photocatalysts in algal inhibition and sterilization: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:5013-5031. [PMID: 38147259 DOI: 10.1007/s11356-023-31665-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 12/18/2023] [Indexed: 12/27/2023]
Abstract
An increasing amount of sewage has been discharged into water bodies in the progression of industrialization and urbanization, causing serious water pollution. Meanwhile, the increase of nutrients in the water induces water eutrophication and rapid growth of algae. Photocatalysis is a common technique for algal inhibition and sterilization. To improve the utilization of visible light and the conversion efficiency of solar energy, more organic photocatalytic materials have been gradually developed. In addition to ultraviolet light, partial infrared light and visible light could also be used by organic photocatalysts compared with inorganic photocatalysts. Simultaneously, organic photocatalysts also exhibit favorable stability. Most organic photocatalysts can maintain a high degradation rate for algae and bacteria after several cycles. There are various organic semiconductors, mainly including small organic molecules, such as perylene diimide (PDI), porphyrin (TCPP), and new carbon materials (fullerene (C60), graphene (GO), and carbon nanotubes (CNT)), and large organic polymers, such as graphite phase carbon nitride (g-C3N4), polypyrrole (PPy), polythiophene (PTH), polyaniline (PANI), and polyimide (PI). In this review, the classification and synthesis methods of organic photocatalytic materials were elucidated. It was demonstrated that the full visible spectral response (400-750 nm) could be stimulated by modifying organic photocatalysts. Moreover, some problems were summarized based on the research status related to algae and bacteria, and corresponding suggestions were also provided for the development of organic photocatalytic materials.
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Affiliation(s)
- Yushan Wei
- School of Life Sciences, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Renjun Wang
- School of Life Sciences, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Mengjiao Wang
- School of Life Sciences, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Lijun Hu
- School of Life Sciences, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Xinyi Zhang
- School of Life Sciences, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Yuling Xu
- School of Life Sciences, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Yanyan Liu
- School of Life Sciences, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Feng Lan
- School of Life Sciences, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Junfeng Chen
- School of Life Sciences, Qufu Normal University, Qufu, 273165, People's Republic of China.
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Li Y, Li W, Liu Y, Liu J, Yuan X, Zhang J, Shen H. Defect-rich platinum-zinc oxide heterojunction as a potent ROS amplifier for synergistic sono-catalytic therapy. Acta Biomater 2023; 171:543-552. [PMID: 37739245 DOI: 10.1016/j.actbio.2023.09.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 09/13/2023] [Accepted: 09/17/2023] [Indexed: 09/24/2023]
Abstract
Sonodynamic therapy (SDT) is a physical therapy that utilizes critical sonosensitizers triggered by ultrasound to achieve an effective non-invasive tumor treatment. However, the inadequate sonodynamic efficacy and low responsive activities of traditional inorganic sonosensitizers have hindered its practical application. Here, we rationally design a platinum-zinc oxide (PtZnO) sonosensitizer to significantly enhance the efficacy of SDT through its inherent bandgap structure and dual-nanozyme activities. The PtZnO possesses a narrow bandgap (2.89 eV) and an appropriate amount of oxygen defects, which promote the efficiency of electrons and holes separation and the generation of reactive oxygen species (ROS) under US irradiation. Simultaneously, the PtZnO exhibits both catalase-like and peroxidase-like activities, which effectively catalyze endogenous H2O2 into a large number of O2 and toxic hydroxyl radicals (•OH), thus achieving an efficient enhancement of SDT and catalytic therapy. Moreover, the PtZnO has significant glutathione consumption performance, further amplifying the oxidative stress. Ultimately, the PtZnO achieves a triple ROS amplification effect, with the yields of singlet oxygen (1O2) and •OH reaching 859.1 % and 614.4 %, respectively, inducing a highly effective sono-catalytic therapy with a remarkable tumor inhibition rate of 98.1 %. This study expands the application of ZnO semiconductor heterojunctions in the nanomedicine area, and the simple yet efficient design of the PtZnO provides a strategy for the development of sonosensitizers. STATEMENT OF SIGNIFICANCE: A platinum-zinc oxide (PtZnO) heterojunction sonosensitizer is constructed with dual-nanozyme activities and achieves a triple ROS amplification effect, leading to an efficient synergistic sono-catalytic therapy. The PtZnO owns an inherent narrow bandgap and abundant oxygen defects, thus exhibiting an efficient sonosensitizer performance. It also possesses both catalase-like and peroxidase-like activities, which effectively catalyze the endogenous H2O2 into a large quantity of O2 and toxic hydroxyl radicals, thereby enhancing the SDT and catalytic therapy. Furthermore, its prominent glutathione consumption performance further amplifies oxidative stress. The yields of singlet oxygen and hydroxyl radicals reach up to 859.1 % and 614.4 %, respectively, inducing a highly effective sono-catalytic therapy with an impressive tumor inhibition rate of 98.1 %.
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Affiliation(s)
- Yuxuan Li
- Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, China
| | - Wenxin Li
- Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yian Liu
- Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jiahui Liu
- Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xinru Yuan
- Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jiarui Zhang
- Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, China
| | - Heyun Shen
- Key Laboratory of Bioprocess, Beijing University of Chemical Technology, Beijing 100029, China.
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Yang W, Luo D, Li G, Luo Q, Banwell MG, Chen L. Synthesis of Pyridin-1(2 H)-ylacrylates and the Effects of Different Functional Groups on Their Fluorescence. Molecules 2023; 28:6511. [PMID: 37764287 PMCID: PMC10536652 DOI: 10.3390/molecules28186511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 08/25/2023] [Accepted: 09/01/2023] [Indexed: 09/29/2023] Open
Abstract
While fluorescent organic materials have many potential as well as proven applications and so have attracted significant attention, pyridine-olefin conjugates remain a less studied subset of such systems. Herein, therefore, we report on the development of the straightforward syntheses of pyridin-1(2H)-ylacrylates and the outcomes of a study of the effects of substituents on their fluorescent properties. Such compounds were prepared using a simple, metal-free and three-component coupling reaction involving 2-aminopyridines, sulfonyl azides and propiolates. The fluorescent properties of the ensuing products are significantly affected by the positions of substituents on the cyclic framework, with those located in central positions having the greatest impact. Electron-withdrawing groups tend to induce blue shifts while electron-donating ones cause red shifts. This work highlights the capacity that the micro-modification of fluorescent materials provides for fine-tuning their properties such that they may be usefully applied to, for example, the study of luminescent materials.
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Affiliation(s)
- Weiguang Yang
- Key Laboratory of Big Data Mining and Precision Drug Design of Guangdong Medical University, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China; (D.L.); (G.L.)
| | - Danyang Luo
- Key Laboratory of Big Data Mining and Precision Drug Design of Guangdong Medical University, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China; (D.L.); (G.L.)
| | - Guanrong Li
- Key Laboratory of Big Data Mining and Precision Drug Design of Guangdong Medical University, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China; (D.L.); (G.L.)
| | - Qiaoli Luo
- School of Chemistry and Chemical Engineering, Lingnan Normal University, Zhanjiang 524048, China;
| | - Martin G. Banwell
- Key Laboratory of Big Data Mining and Precision Drug Design of Guangdong Medical University, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China; (D.L.); (G.L.)
- Institute for Advanced and Applied Chemical Synthesis (IAACS), Jinan University, Guangzhou 510632, China
| | - Lanmei Chen
- Key Laboratory of Big Data Mining and Precision Drug Design of Guangdong Medical University, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China; (D.L.); (G.L.)
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Yiu TC, Gnanasekaran P, Chen WL, Lin WH, Lin MJ, Wang DY, Lu CW, Chang CH, Chang YJ. Multifaceted Sulfone-Carbazole-Based D-A-D Materials: A Blue Fluorescent Emitter as a Host for Phosphorescent OLEDs and Triplet-Triplet Annihilation Up-Conversion Electroluminescence. ACS APPLIED MATERIALS & INTERFACES 2023; 15:1748-1761. [PMID: 36576167 DOI: 10.1021/acsami.2c21294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Electroluminescence (EL) from the singlet-excited (S1) state is the ideal choice for stable, high-performing deep-blue organic light-emitting diodes (OLEDs) owing to the advantages of an adequately short radiative lifetime, improved device durability, and low cost, which are the most important criteria for their commercialization. Herein, we present the design and synthesis of three donor-acceptor-donor (D-A-D)-configured deep-blue fluorescent materials (denoted as TC-1, TC-2, and TC-3) composed of a thioxanthone or diphenyl sulfonyl acceptor and phenyl carbazolyl donor. These systems exhibit strong deep-blue photoluminescence (422-432 nm) in solutions and redshifted emission (472-486 nm) in thin films. The solid-state photoluminescence quantum yield (PLQY) was estimated to be 78 and 94% for TC-2 and TC-3, respectively. TC-2 and TC-3 possess good molecular packing and large molecular cross-sectional areas, which not only improves the PLQY but enhances the triplet-triplet annihilation up-conversion (TTAUC) efficiency of fluorescent emitters. Furthermore, both compounds were applied as an acceptor for confirming their TTAUC property using bis(2-methyldibenzo[f,h]quinoxaline)(acetylacetonate)iridium(III) (Ir(MDQ)2acac) as the sensitizer. Non-doped OLEDs based on TC-2 and TC-3 exhibit blue EL in the 461-476 nm range. In particular, TC-3 exhibits a maximum external quantum efficiency (EQEmax) of 5.1%, and its EL maximum is 476 nm. In addition, the three emitters were employed as hosts in red OLEDs using bis(1-phenylisoquinoline)(acetylacetonate)iridium(III) (Ir(piq)2acac) as the phosphorescent dopant. The red phosphorescent OLEDs based on TC-1, TC-2, and TC-3 achieve excellent EQEmax values of 21.6, 22.9, and 21.9%, respectively, and peak luminance efficiencies of 12.0, 14.0, and 12.3 cd A-1. These results highlight these fluorophores' versatility and promising prospects in practical OLED applications.
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Affiliation(s)
- Tsz Chung Yiu
- Department of Chemistry, Tunghai University, Taichung 40704, Taiwan
| | | | - Wei-Ling Chen
- Department of Electrical Engineering, Yuan Ze University, Taoyuan 32003, Taiwan
| | - Wei-Han Lin
- Department of Electrical Engineering, Yuan Ze University, Taoyuan 32003, Taiwan
| | - Ming-Jun Lin
- Department of Electrical Engineering, Yuan Ze University, Taoyuan 32003, Taiwan
| | - Di-Yan Wang
- Department of Chemistry, Tunghai University, Taichung 40704, Taiwan
| | - Chin-Wei Lu
- Department of Applied Chemistry, Providence University, Taichung 43301, Taiwan
| | - Chih-Hao Chang
- Department of Electrical Engineering, Yuan Ze University, Taoyuan 32003, Taiwan
| | - Yuan Jay Chang
- Department of Chemistry, Tunghai University, Taichung 40704, Taiwan
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Al-Shamiri HAS, Sakr MEM, Abdel-Latif SA, Negm NA, Abou Kana MTH, El-Daly SA, Elwahy AHM. Experimental and theoretical studies of linear and non-linear optical properties of novel fused-triazine derivatives for advanced technological applications. Sci Rep 2022; 12:19937. [PMID: 36402774 PMCID: PMC9675782 DOI: 10.1038/s41598-022-22311-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 10/12/2022] [Indexed: 11/21/2022] Open
Abstract
Controlling photophysical properties is critical for the continued development of electroluminescent devices and luminescent materials. The preparation and study of novel molecules suitable as luminescent for the development of optoelectrical devices have recently received a lot of attention. Even though the as-triazine unit is a good building block for organic active substances, it is rarely used in this context. We created here novel bis-triazine derivative dyes in the far UV–Vis range by alkylation of triazine-thione derivatives with appropriate dibromo compounds. At the B3LYP/6-311**G(d,p) basis set, their optimal molecular structures were obtained. DFT technique confirmed that the new triazine derivatives are in noncoplanar with one of the two phenyl rings and the triazine plane rotating out by 102.09. Also, depending on the energy gap difference between HOMO and LUMO, some important parameters including chemical potential (π), electronegativity (χ), and chemical hardness (η) were calculated. The compounds may be readily polarized and have significant NLO characteristics, as seen by the tiny HOMO–LUMO energy gap. The calculated values for the polarizability (α) of the two new triazine derivatives have the range 6.09–10.75 × 10–24 (esu). The emission peaks seemed to move to the long-wavelength (redshift), with a rise in the fluorescence band, suggesting that the singlet excited state is more polar than the ground state. The influence of solvent polarity and the intermolecular charge transfer (ICT) processes are reflected in the photophysical properties of new fused triazine derivatives. These properties such as extinction coefficient, absorption and emission cross-sections, fluorescence quantum yield, fluorescence lifetime, oscillator strength, the dipole moment, radiative decay rate constant, the energy yield of fluorescence, and the attenuation length were assessed and discussed.
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A review: methodologies for the synthesis of anthra[2,3-b]thiophene and naphtho[2,3-b:6,7-b']dithiophene fragments for organic semiconductor materials. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Qu W, Gao Z, Fan X, Tian X, Wang H, Wei B. Organic fluorescent compounds with twisted D-π-A molecular structure and acidochromic properties. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Guo C, Guo S, Lu Q, Jiang Z, Yang Y, Zhou W, Zeng Q, Liang J, Miao Y, Liu Y. Solution-Processed Yellow Organic Light-Emitting Diodes Based on Two New Ionic Ir (III) Complexes. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27092840. [PMID: 35566193 PMCID: PMC9101346 DOI: 10.3390/molecules27092840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 11/16/2022]
Abstract
Two new and efficient cationic yellow-emissive Ir (III) complexes (Ir1 and Ir2) are rationally designed by using 2-(4-chloro-3-(trifluoromethyl)phenyl)-4-methylquinoline as the main ligand, and, respectively, 4,4′-dimethyl-2,2′-bipyridyl and 4,4′-dimethoxy-2,2′-bipyridyl as the ancillary ligands. Both complexes show enhanced phosphorescence (546 nm with 572 nm as shoulder and high phosphorescent quantum efficiency in solution, which is in favor of efficient solution-processed phosphorescent organic light-emitting diodes. Compared with Ir2, the Ir1-based device displays excellent device performance, with maximum external quantum efficiency, current efficiency, and power efficiency of up to 7.92%, 26.32 cd/A and 15.31 lm/W, respectively, thus proving that the two new ionic Ir (III) complexes exhibit great potential for future solution-processed electroluminescence.
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Affiliation(s)
- Chaoxiong Guo
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; (C.G.); (S.G.); (Z.J.); (Y.Y.); (W.Z.); (Q.Z.)
| | - Song Guo
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; (C.G.); (S.G.); (Z.J.); (Y.Y.); (W.Z.); (Q.Z.)
| | - Qiqing Lu
- MOE Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Taiyuan 030024, China;
| | - Zizhan Jiang
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; (C.G.); (S.G.); (Z.J.); (Y.Y.); (W.Z.); (Q.Z.)
| | - Yuzhen Yang
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; (C.G.); (S.G.); (Z.J.); (Y.Y.); (W.Z.); (Q.Z.)
| | - Weiqiao Zhou
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; (C.G.); (S.G.); (Z.J.); (Y.Y.); (W.Z.); (Q.Z.)
| | - Qin Zeng
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; (C.G.); (S.G.); (Z.J.); (Y.Y.); (W.Z.); (Q.Z.)
| | - Jun Liang
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; (C.G.); (S.G.); (Z.J.); (Y.Y.); (W.Z.); (Q.Z.)
- Correspondence: (J.L.); (Y.M.); (Y.L.)
| | - Yanqin Miao
- MOE Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Taiyuan 030024, China;
- Correspondence: (J.L.); (Y.M.); (Y.L.)
| | - Yuanli Liu
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; (C.G.); (S.G.); (Z.J.); (Y.Y.); (W.Z.); (Q.Z.)
- Correspondence: (J.L.); (Y.M.); (Y.L.)
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Wu H, Wang G, Zhang D, Jin X, Luo X, Guo S, Zhou H, Miao Y, Huang J, Su J. Novel carbazole- and dioxino[2,3- b]pyrazine-based bipolar hosts for red PhOLEDs with a high brightness. NEW J CHEM 2022. [DOI: 10.1039/d2nj01951e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The target compounds offer new synthetic ideas for red bipolar host materials.
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Affiliation(s)
- Haifa Wu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Guoliang Wang
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
| | - Daqing Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Xin Jin
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Xin Luo
- Shanghai Taoe Chemical Technology Co., Ltd, Shanghai, P. R. China
| | - Shiyan Guo
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Haitao Zhou
- Shanghai Taoe Chemical Technology Co., Ltd, Shanghai, P. R. China
| | - Yanqin Miao
- Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
| | - Jinhai Huang
- Shanghai Taoe Chemical Technology Co., Ltd, Shanghai, P. R. China
| | - Jianhua Su
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, P. R. China
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Song K, Li J, Liu D, Lan Y, Wu C, Liu B, Shi C. Bicarbazole-cyanopyridine based bipolar host materials for green and blue phosphorescent OLEDs: influence of the linking style between P- and N-type units. NEW J CHEM 2022. [DOI: 10.1039/d2nj01737g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bicarbazole and cyanopyridine were used to construct bipolar host materials. Ortho-linkage generated more balanced charge transportations and sufficiently high triplet energy (3.05 eV), and finally led to high EQEs of 15.9% and 22.6% in sky-blue and green phosphorescent OLEDs.
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Affiliation(s)
- Kai Song
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Jiuyan Li
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Di Liu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Ying Lan
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Chen Wu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Botao Liu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Chunlong Shi
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
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