1
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Ohtani S, Gon M, Tanaka K, Chujo Y. Synthesis of Regioregular and Random Boron-Fused Azomethine Conjugated Polymers for Film Morphology Control. Chem Asian J 2024; 19:e202301136. [PMID: 38326231 DOI: 10.1002/asia.202301136] [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: 12/26/2023] [Revised: 01/28/2024] [Accepted: 02/01/2024] [Indexed: 02/09/2024]
Abstract
Regioregular and random conjugated polymers based on a boron-fused azomethine unit were synthesized by Sonogashira-Hagihara cross coupling reaction. Although these polymers exhibited similar optical properties in the solution states, a distinct difference was observed in the aggregation forming ability in the film states; scanning electron microscope (SEM) observation indicated the existence of fiber-like aggregates in the spin-coated film of the regioregular polymer, while regiorandom polymer showed no aggregate in the film state. Accordingly, the UV-vis absorption spectrum of the regioregular polymer showed an increased shoulder peak due to the aggregate formation, whereas the random one showed no change. Furthermore, an absolute fluorescence quantum efficiency of the regioregular polymer was enhanced in response to the aggregate disassembly via thermal annealing treatment. In this study, we demonstrate that controlling regioregularity of the conjugated polymers can induce the different morphological structures and thermal-responsive behaviors. These findings could be beneficial for the design strategy and potential applications of thin-film optoelectronic devices with stimuli-responsive properties.
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Affiliation(s)
- Shunsuke Ohtani
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Masayuki Gon
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
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2
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Söyüt H, Kolcu F, Kaya İ, Yaşar AÖ. Influence of the enzymatic and the chemical oxidative polymerization of trifluoromethyl‐substituted aromatic diamine on thermal and photophysical properties. POLYM ADVAN TECHNOL 2023. [DOI: 10.1002/pat.5970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Hakan Söyüt
- Bursa Uludağ University Faculty of Education, Department of Basic Education Bursa Turkey
- Çanakkale Onsekiz Mart University Department of Chemistry, Polymer Synthesis and Analysis Lab Çanakkale Turkey
| | - Feyza Kolcu
- Çanakkale Onsekiz Mart University Department of Chemistry, Polymer Synthesis and Analysis Lab Çanakkale Turkey
- Lapseki Vocational School, Department of Chemistry and Chemical Processing Technologies Çanakkale Onsekiz Mart University Çanakkale Turkey
| | - İsmet Kaya
- Çanakkale Onsekiz Mart University Department of Chemistry, Polymer Synthesis and Analysis Lab Çanakkale Turkey
| | - Alper Ömer Yaşar
- Çanakkale Onsekiz Mart University Department of Chemistry, Polymer Synthesis and Analysis Lab Çanakkale Turkey
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3
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Gioti M. Spectroscopic Ellipsometry Studies on Solution-Processed OLED Devices: Optical Properties and Interfacial Layers. MATERIALS (BASEL, SWITZERLAND) 2022; 15:9077. [PMID: 36556883 PMCID: PMC9784439 DOI: 10.3390/ma15249077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/12/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
Τhe fabrication of organic light-emitting diodes (OLEDs) from solution involves the major problem of stack integrity, setting the determination of the composition and the characteristics of the resulting interfaces prerequisite for the optimization of the growth processes and the achievement of high devices' performance. In this work, a poly(9,9-dioctylfluorene) (F8) and poly(9,9-dioctylfluorene-alt-benzothiadiazole) (F8BT) blend is used for the emissive layer (EML), poly-3,4-ethylene dioxythiophene; poly-styrene sulfonate (PEDOT:PSS) is used for a hole transport layer (HTL), and Poly(9,9-bis(3'-(N,N-dimethyl)-N-ethylammoinium-propyl-2,7-fluorene)-alt-2,7-(9,9-dioctylfluore-ne))dibromide (PFN-Br) for an electron transport layer (ETL) to produce the OLED device. All the layers are developed using the slot-die process, onto indium tin oxide (ITO)-coated polyethylene terephthalate (PET) flexible substrates, whereas Ag cathode was formed by ink-jet printing under ambient conditions. Spectroscopic ellipsometry measurements were performed upon completion of the successive films' growth, in sequential steps, for the multilayer OLED development. Ellipsometry analysis using different models demonstrate the degree of intermixing within the layers and provide information about the interfaces. These interfacial properties are correlated with the emission characteristics as well as the final performance of the OLED devices.
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Affiliation(s)
- Maria Gioti
- Nanotechnology Laboratory LTFN, Physics Department, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
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4
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Hacıefendioǧlu T, Yildirim E. Design Principles for the Acceptor Units in Donor-Acceptor Conjugated Polymers. ACS OMEGA 2022; 7:38969-38978. [PMID: 36340112 PMCID: PMC9631416 DOI: 10.1021/acsomega.2c04713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
More than 50 different acceptor units from the experimental literature have been modeled, analyzed, and compared by using the computationally extracted data from the density functional theory (DFT) perspective for tetramer structures in the form of (D-B-A-B)4 (D, donor; A, acceptor; B, bridge) with fixed donor and bridge units. Comparison of dihedral angle between acceptor, donor, and bridge units, bond order, and hyperpolarizability reveals that these three structural properties have a dominant effect on the frontier electronic energy levels of the acceptor units. Systematic investigation of the structural properties has demonstrated the band gap energy dependency of the acceptor units on the planarity, conjugation, and the electron delocalization. Substitution effect, morphological alternation, and insertion of π-electron deficient atoms in A unit have also an important role to determine physical properties of the donor-acceptor conjugated polymers. This benchmark study will be beneficial for the band gap engineering and molecular design of the donor-acceptor copolymers using different acceptor units for the organic electronic applications.
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Affiliation(s)
| | - Erol Yildirim
- Department
of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
- Department
of Polymer Science and Technology, Middle
East Technical University, 06800 Ankara, Turkey
- Department
of Micro- and Nanotechnology, Middle East
Technical University, 06800 Ankara, Turkey
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5
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A Fluorescent Linear Conjugated Polymer Constructed from Pillararene and Anthracene. Molecules 2022; 27:molecules27103162. [PMID: 35630639 PMCID: PMC9146593 DOI: 10.3390/molecules27103162] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/10/2022] [Accepted: 05/14/2022] [Indexed: 02/04/2023] Open
Abstract
Over the past few years, conjugated polymers (CPs) have aroused much attention owing to their rigid conjugated structures, which can perform well in light harvesting and energy transfer and offer great potential in materials chemistry. In this article, we fabricate a new luminescent linear CP p(P[5](OTf)2-co-9,10-dea) via the Sonogashira coupling of 9,10-diethynylanthracene and trifluoromethanesulfonic anhydride (OTf) modified pillar[5]arene, generating enhanced yellow-green fluorescence emission at around 552 nm. The reaction condition was screened to get a deeper understanding of this polymerization approach, resulting in an excellent yield as high as 92% ultimately. Besides the optical properties, self-assembly behaviors of the CP in low/high concentrations were studied, where interesting adjustable morphologies from tube to sheet were observed. In addition, the fluorescence performance and structural architecture can be disturbed by the host–guest reorganization between the host CP and the guest adiponitrile, suggesting great potential of this CP material in the field of sensing and detection.
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6
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Wagner J, Song Y, Lee T, Katz HE. The combined influence of polythiophene side chains and electrolyte anions on organic electrochemical transistors. ELECTROCHEMICAL SCIENCE ADVANCES 2021. [DOI: 10.1002/elsa.202100165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- Justine Wagner
- Department of Materials Science and Engineering Johns Hopkins University Baltimore Maryland USA
| | - Yunjia Song
- Department of Materials Science and Engineering Johns Hopkins University Baltimore Maryland USA
| | - Taein Lee
- Department of Materials Science and Engineering Johns Hopkins University Baltimore Maryland USA
| | - Howard E. Katz
- Department of Materials Science and Engineering Johns Hopkins University Baltimore Maryland USA
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7
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Kaya K, Yagci Y. Contemporary Approaches for Conventional and Light‐Mediated Synthesis of Conjugated Heteroaromatic Polymers. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100334] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Kerem Kaya
- Chemistry Department Istanbul Technical University Maslak Istanbul 34469 Turkey
| | - Yusuf Yagci
- Chemistry Department Istanbul Technical University Maslak Istanbul 34469 Turkey
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8
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Li L, Xu Z, Huang X. Whole-Cell-Based Photosynthetic Biohybrid Systems for Energy and Environmental Applications. Chempluschem 2021; 86:1021-1036. [PMID: 34286914 DOI: 10.1002/cplu.202100171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 07/07/2021] [Indexed: 12/17/2022]
Abstract
With the increasing awareness of sustainable development, energy and environment are becoming two of the most important issues of concern to the world today. Whole-cell-based photosynthetic biohybrid systems (PBSs), an emerging interdisciplinary field, are considered as attractive biosynthetic platforms with great prospects in energy and environment, combining the superiorities of semiconductor materials with high energy conversion efficiency and living cells with distinguished biosynthetic capacity. This review presents a systematic discussion on the synthesis strategies of whole-cell-based PBSs that demonstrate a promising potential for applications in sustainable solar-to-chemical conversion, including light-facilitated carbon dioxide reduction and biohydrogen production. In the end, the explicit perspectives on the challenges and future directions in this burgeoning field are discussed.
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Affiliation(s)
- Luxuan Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology (HIT), Harbin, 150001, P. R. China
| | - Zhijun Xu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology (HIT), Harbin, 150001, P. R. China
| | - Xin Huang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology (HIT), Harbin, 150001, P. R. China
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9
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Chaudhary V, Pandey RK, Prakash R, Kumar N, Singh AK. Unfolding photophysical properties of poly(3-hexylthiophene)-MoS 2organic-inorganic hybrid materials: an application to self-powered photodetectors. NANOTECHNOLOGY 2021; 32:385201. [PMID: 34082410 DOI: 10.1088/1361-6528/ac07d2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 06/03/2021] [Indexed: 06/12/2023]
Abstract
Self-powered photodetectors have grown as inevitable members of the optoelectronic device family. However, it is still challenging to achieve self-powered photodetection with good responsivity in the visible spectrum region. Herein, we report solution-processable poly(3-hexylthiophene) (P3HT)-molybdenum disulfide (MoS2) organic-inorganic hybrid material, which can be used as the active layer in self-powered photodetectors. The morphological and structural properties of the synthesized P3HT-MoS2hybrid material has been discussed using atomic force microscopy and transmission electron microscopy, respectively. The hybrid material loaded with 1 wt% MoS2has shown an enhancement in the self-assembly of polymer in the form of fibrillar formation and excellent structural features in terms ofπ-conjugation. The self-powered photodetectors have been fabricated in indium tin oxide (ITO) coated glass/P3HT-MoS2/Al configuration. The merit of P3HT-MoS2hybrid photodetectors is measured under the illumination of 470, 530, and 627 nm light in ambient conditions. P3HT-MoS2photodetectors show significantly higher responsivity and detectivity. The photo responsivity and detectivity in P3HT-MoS2devices are found to be 271.2 mA W-1and 4.4 × 1010jones at zero bias, respectively, for 470 nm light with the optical power density of 74.1μW cm-2. Furthermore, the photocurrent switching behaviour at periodic illuminations of 1 Hz has also been examined for P3HT-MoS2self-powered photodetectors.
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Affiliation(s)
- Vivek Chaudhary
- Department of Physics, Motilal Nehru National Institute of Technology, Allahabad, Prayagraj 211004, India
| | - Rajiv Kumar Pandey
- School of Materials Science and Technology, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Rajiv Prakash
- School of Materials Science and Technology, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Naresh Kumar
- Department of Physics, Motilal Nehru National Institute of Technology, Allahabad, Prayagraj 211004, India
| | - Arun Kumar Singh
- Department of Physics, Motilal Nehru National Institute of Technology, Allahabad, Prayagraj 211004, India
- Department of Pure and Applied Physics, Guru Ghasidas Vishwavidyalaya, Bilaspur 495009 (C.G.), India
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10
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Ben Salah Y, Altowyan AS, Mbarek M, Alimi K. Complementary Study Based on DFT of Optical and Electronic Properties of New Copolymer PVK-F8T2. Polymers (Basel) 2021; 13:polym13111805. [PMID: 34070831 PMCID: PMC8198593 DOI: 10.3390/polym13111805] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/28/2021] [Accepted: 05/28/2021] [Indexed: 02/08/2023] Open
Abstract
This article is mainly a complementary study of a novel part of π-conjugated copolymers based on the poly (N-vinylcarbazole) (PVK) and poly (9,9-dioctylfluorene-co-bithiophene) (F8T2) unit based on the Density Functional Theory (DFT) and Time-Dependent Density Functional Theory (TD-DFT). This study is carried out to explore the structural and optoelectronic characteristics of a new organic material named PVK-F8T2. First, the structural, optical (absorption, photoluminescence, optical transition), electronic (molecular orbital (MO), energy-level diagram) and vibratory parameters of infrared (IR) were computed and compared with experimental studies. In addition, we calculated the level energy of the excited states and their corresponding transitions. Obviously, electronic parameters such as highest occupied and lowest unoccupied molecular orbital (HOMO and LUMO), ionization potential (IP), electronic affinity (EA) and the energy band gap (Eg) were computed in order to elucidate the intramolecular charge transport and to establish the energetic diagrams of the PVK-F8T2 copolymer for different states. The results obtained looked with precision at future optoelectronic applications. From these results, we have shown that the PVK-F8T2 has significant optoelectronic properties and seems usable as an active layer in organic light-emitting diodes (OLEDs).
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Affiliation(s)
- Yasmine Ben Salah
- College of Sciences of Monastir, Monastir University, Monastir 5000, Tunisia; (Y.B.S.); (K.A.)
| | - Abeer S. Altowyan
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
- Correspondence: (A.S.A.); (M.M.)
| | - Mohamed Mbarek
- College of Sciences of Monastir, Monastir University, Monastir 5000, Tunisia; (Y.B.S.); (K.A.)
- Correspondence: (A.S.A.); (M.M.)
| | - Kamel Alimi
- College of Sciences of Monastir, Monastir University, Monastir 5000, Tunisia; (Y.B.S.); (K.A.)
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11
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Ohtani S, Yamada N, Gon M, Tanaka K, Chujo Y. The effect of alkyl chain lengths on the red-to-near-infrared emission of boron-fused azomethine conjugated polymers and their film-state stimuli-responsivities. Polym Chem 2021. [DOI: 10.1039/d1py00213a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We present systematic studies of the dependence of the red-to-near-infrared emission and stimuli-responsive properties of boron-fused azomethine conjugated copolymers on the lengths of the alkyl chains.
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Affiliation(s)
- Shunsuke Ohtani
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Natsumi Yamada
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Masayuki Gon
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
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12
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Guo X, Benavides-Guerrero J, Banerjee D, Roy-Moisan F, Cloutier SG. Hybrid Color-Tunable Polymer Light-Emitting Diodes Using Electrospraying. ACS OMEGA 2019; 4:19287-19292. [PMID: 31763552 PMCID: PMC6868885 DOI: 10.1021/acsomega.9b02666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Accepted: 10/22/2019] [Indexed: 06/10/2023]
Abstract
This paper proposes a new paradigm in polymer light-emitting diode (PLED) fabrication by using a uniform electrosprayed microparticle film as the active layer. Among the seven electrospraying parameters analyzed, three crucial parameters are statistically identified and optimized to obtain thin electrosprayed microparticle layers. Using optimized electrospraying conditions, single-color red-emitting PLED (MEH-PPV) with a peak current density of 16.1 mA/mm2 under a 13.5 V bias and a peak external quantum efficiency of 3.2% are successfully fabricated. Finally, a combinatorial approach is implemented using both MEH-PPV (red-emitting) and F8BT (green-emitting) polymer microparticles at different mixing ratios to tune the emission spectrum of the devices. As such, it has been demonstrated that hybrid multilayer films using different organic materials with nonorthogonal solvents can be produced using this new approach. The parameter analysis and color-tunable properties pave the way towards white light PLED fabrication.
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13
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Slot-Die Coating of Double Polymer Layers for the Fabrication of Organic Light Emitting Diodes. MICROMACHINES 2019; 10:mi10010053. [PMID: 30646572 PMCID: PMC6356254 DOI: 10.3390/mi10010053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 01/09/2019] [Indexed: 11/17/2022]
Abstract
This study presents the slot-die coating process of two layers of organic materials for the fabrication of organic light emitting diodes (OLEDs). Poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), which is commonly used in OLEDs and in organic photovoltaic devices as the hole injection layer (HIL), has been deposited via slot-die coating. Uniform films of PEDOT:PSS were obtained after optimizing the slot-die processing parameters: substrate temperature, coating speed, and ink flow rate. The film quality was examined using optical microscopy, profilometry, and atomic force microscopy. Further, poly(9,9-dioctylfluorene) (F8) and poly(9,9-dioctylfluorene-alt-benzothiadiazole) (F8BT), a well know polymer blend F8:F8BT, which is used as an emissive layer in OLEDs, has been slot-die coated. The optoelectronic properties of the slot-die coated F8:F8BT films were examined by means of photoluminescence (PL) and electroluminescence (EL) studies. The fabricated OLEDs, consisting of slot-die coated PEDOT:PSS and F8:F8BT films, were characterized to record the brightness and current efficiency.
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14
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Ashok Kumar S, Shankar JS, K Periyasamy B, Nayak SK. Device engineering aspects of Organic Light-Emitting Diodes (OLEDs). POLYM-PLAST TECH MAT 2019. [DOI: 10.1080/25740881.2018.1563133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Sangeetha Ashok Kumar
- Adavanced Research School for Technology and Product Simulation (ARSTPS), Central Institute of Plastics Engineering and Technology (CIPET), Guindy, Chennai, Tamil Nadu, India
| | - Jaya Seeli Shankar
- Adavanced Research School for Technology and Product Simulation (ARSTPS), Central Institute of Plastics Engineering and Technology (CIPET), Guindy, Chennai, Tamil Nadu, India
| | - Bhuvana K Periyasamy
- Department of Plastics Technology, Central Institute of Plastics Engineering and Technology (CIPET), Guindy, Chennai, Tamil Nadu, India
| | - Sanjay K. Nayak
- Adavanced Research School for Technology and Product Simulation (ARSTPS), Central Institute of Plastics Engineering and Technology (CIPET), Guindy, Chennai, Tamil Nadu, India
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15
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Tonge CM, Yuan F, Lu ZH, Hudson ZM. Cu(0)-RDRP as an efficient and low-cost synthetic route to blue-emissive polymers for OLEDs. Polym Chem 2019. [DOI: 10.1039/c9py00294d] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Cu(0)-RDRP has been used to prepare deep-blue emissive polymers for OLEDs using a simple room-temperature procedure with copper wire catalyst.
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Affiliation(s)
- Christopher M. Tonge
- Department of Chemistry
- 2026 Main Mall
- The University of British Columbia
- Vancouver
- Canada
| | - Fanglong Yuan
- Department of Materials Science and Engineering
- 184 College Street
- University of Toronto
- Toronto
- Canada MS5 3E4
| | - Zheng-Hong Lu
- Department of Materials Science and Engineering
- 184 College Street
- University of Toronto
- Toronto
- Canada MS5 3E4
| | - Zachary M. Hudson
- Department of Chemistry
- 2026 Main Mall
- The University of British Columbia
- Vancouver
- Canada
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16
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Percino MJ, Cerón M, Venkatesan P, Pérez-Gutiérrez E, Santos P, Ceballos P, Castillo AE, Gordillo-Guerra P, Anandhan K, Barbosa-García O, Bernal W, Thamotharan S. A low molecular weight OLED material: 2-(4-((2-hydroxyethyl)(methyl)amino)benzylidene)malononitrile. Synthesis, crystal structure, thin film morphology, spectroscopic characterization and DFT calculations. RSC Adv 2019; 9:28704-28717. [PMID: 35529660 PMCID: PMC9071261 DOI: 10.1039/c9ra05425a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 09/05/2019] [Indexed: 01/15/2023] Open
Abstract
A low molecular weight fluorescent malononitrile derivative showed an efficient solid-state emission and electroluminescence properties.
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17
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Ahmad SM. Elaboration and thermal annealing of the optical properties of the thin films of meta-PPV copolymer. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2655-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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18
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Haldar S, Chakraborty D, Roy B, Banappanavar G, Rinku K, Mullangi D, Hazra P, Kabra D, Vaidhyanathan R. Anthracene-Resorcinol Derived Covalent Organic Framework as Flexible White Light Emitter. J Am Chem Soc 2018; 140:13367-13374. [DOI: 10.1021/jacs.8b08312] [Citation(s) in RCA: 140] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | | | | | | | | | | | | | - Dinesh Kabra
- Department of Physics, Indian Institute of Technology, Mumbai, 400076 India
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19
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Freudenberg J, Jänsch D, Hinkel F, Bunz UHF. Immobilization Strategies for Organic Semiconducting Conjugated Polymers. Chem Rev 2018; 118:5598-5689. [DOI: 10.1021/acs.chemrev.8b00063] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jan Freudenberg
- Organisch-Chemisches Institut and Centre of Advanced Materials, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 225 and 270, 69120 Heidelberg, FRG
- InnovationLab, Speyerer Str. 4, 69115 Heidelberg, FRG
| | - Daniel Jänsch
- Organisch-Chemisches Institut and Centre of Advanced Materials, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 225 and 270, 69120 Heidelberg, FRG
- InnovationLab, Speyerer Str. 4, 69115 Heidelberg, FRG
| | - Felix Hinkel
- Organisch-Chemisches Institut and Centre of Advanced Materials, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 225 and 270, 69120 Heidelberg, FRG
| | - Uwe H. F. Bunz
- Organisch-Chemisches Institut and Centre of Advanced Materials, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 225 and 270, 69120 Heidelberg, FRG
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20
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Jeon D, Kim N, Bae S, Han Y, Ryu J. WO 3/Conducting Polymer Heterojunction Photoanodes for Efficient and Stable Photoelectrochemical Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2018; 10:8036-8044. [PMID: 29462556 DOI: 10.1021/acsami.7b19203] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
An efficient and stable heterojunction photoanode for solar water oxidation was fabricated by hybridization of WO3 and conducting polymers (CPs). Organic/inorganic hybrid photoanodes were readily prepared by the electropolymerization of various CPs and the codeposition of tetraruthenium polyoxometalate (Ru4POM) water-oxidation catalysts (WOCs) on the surface of WO3. The deposition of CPs, especially polypyrrole (PPy) doped with Ru4POM (PPy:Ru4POM), resulted in a remarkably improved photoelectrochemical performance by the formation of a WO3/PPy p-n heterojunction and the incorporation of efficient Ru4POM WOCs. In addition, there was also a significant improvement in the photostability of the WO3-based photoanode after the deposition of the PPy:Ru4POM layer due to the suppression of the formation of hydrogen peroxide, which was responsible for corrosion. This study provides insight into the design and fabrication of novel photosynthetic and photocatalytic systems with excellent performance and stability through the hybridization of organic and inorganic materials.
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Affiliation(s)
- Dasom Jeon
- Department of Energy Engineering, School of Energy and Chemical Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
| | - Nayeong Kim
- Department of Energy Engineering, School of Energy and Chemical Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
| | - Sanghyun Bae
- Department of Energy Engineering, School of Energy and Chemical Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
| | - Yujin Han
- Department of Energy Engineering, School of Energy and Chemical Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
| | - Jungki Ryu
- Department of Energy Engineering, School of Energy and Chemical Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
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21
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Bai K, Wang S, Zhao L, Ding J, Wang L. Efficient Blue, Green, and Red Electroluminescence from Carbazole-Functionalized Poly(spirobifluorene)s. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01393] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Keyan Bai
- State Key Laboratory of Polymer Physics and Chemistry,
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- University
of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Shumeng Wang
- State Key Laboratory of Polymer Physics and Chemistry,
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Lei Zhao
- State Key Laboratory of Polymer Physics and Chemistry,
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Junqiao Ding
- State Key Laboratory of Polymer Physics and Chemistry,
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Lixiang Wang
- State Key Laboratory of Polymer Physics and Chemistry,
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
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22
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Anand V, Ramachandran E, Dhamodharan R. Conjugated polymers with carbazole, fluorene, and ethylene dioxythiophene in the main chain and a pendant cyano group: Synthesis, photophysical, and electrochemical studies. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28160] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Vivek Anand
- Department of Chemistry; IIT Madras; Chennai 600036 Tamil Nadu India
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23
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Tomašegović T, Poljaček SM, Leskovac M. UVA and UVC modification of photo polymeric surface and application for flexographic deposition of thin coatings. J Appl Polym Sci 2016. [DOI: 10.1002/app.43526] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tamara Tomašegović
- Department for Graphic Materials and Printing Plates; University of Zagreb, Faculty of Graphic Arts; Getaldićeva 2 Zagreb 10000 Croatia
| | - Sanja Mahović Poljaček
- Department for Graphic Materials and Printing Plates; University of Zagreb, Faculty of Graphic Arts; Getaldićeva 2 Zagreb 10000 Croatia
| | - Mirela Leskovac
- Department of Surface Engineering of Polymer Materials; University of Zagreb, Faculty of Chemical Engineering and Technology; Trg Marka Marulića 19 Zagreb 10000 Croatia
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24
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Gozzi G, Cagnani LD, Faria RM, Santos LF. Phenomenological model for the interpretation of impedance/admittance spectroscopy results in polymer light-emitting electrochemical cells. J Solid State Electrochem 2014. [DOI: 10.1007/s10008-014-2547-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Şenol D, Kaya İ. Synthesis and characterization of aromatic compounds containing imine and amine groups via oxidative polycondensation. Des Monomers Polym 2014. [DOI: 10.1080/15685551.2013.876754] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Affiliation(s)
- Dilek Şenol
- Faculty of Sciences and Arts, Department of Chemistry, Çanakkale Onsekiz Mart University, Çanakkale 17020, Turkey
| | - İsmet Kaya
- Faculty of Sciences and Arts, Department of Chemistry, Çanakkale Onsekiz Mart University, Çanakkale 17020, Turkey
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26
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Rezvani MH, Farajollahi F, Nikfarjam A, Bakhtiarpour P, Saydanzad E. Effect of Solvents, Their Mixture and Thermal Annealing on the Performance of Solution Processed Polymer Light-Emitting Diodes. MATERIALS 2013; 6:1994-2006. [PMID: 28809256 PMCID: PMC5452522 DOI: 10.3390/ma6051994] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Revised: 03/29/2013] [Accepted: 05/03/2013] [Indexed: 11/16/2022]
Abstract
In this study, we first investigated changes seen in electrical and optical properties of a polymer light-emitting diode due to using different kinds of solvents and their mixture. Two-layer light emitting diodes with organic small molecules doped in a PVK polymer host were fabricated using (i) non-aromatic solvent chloroform with a high evaporation rate; (ii) aromatic solvent chlorobenzene with a low evaporation rate, and (iii) their mixture with different relative ratios. The effect of nano-scale layer thickness, surface roughness and internal nano-morphology on threshold voltage and the amount of electric current, the luminance and efficiency of a device were assessed. Results indicated the importance of majority charge carriers' type in the selection of solvent and tuning its properties. Then, the effect of thermal annealing on electrical and optical properties of polymer light emitting diodes was investigated. During the device fabrication, pre-annealing in 80 and/or 120 °C and post-annealing in 120 °C were performed. The nano-scale effect of annealing on polymer-metal interface and electric current injection was described thoroughly. A comparison between threshold voltage, luminance and electric current efficiency of luminescence for different annealing processes was undertaken, so that the best electric current efficiency of luminescence achieved at 120 °C pre-annealing accompanied with 120 °C post-annealing.
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Affiliation(s)
- Mohammad Hashem Rezvani
- Nanoelectronics Research Group, Academic Center for Education, Culture and Research (ACECR), Khajeh Nasir Toosi University of Technology, Tehran 15569-14846, Iran.
| | - Farid Farajollahi
- Institute for Experimental Physics, Ulm University, Ulm D-89081, Germany.
| | - Alireza Nikfarjam
- Faculty of New Sciences and Technologies, University of Tehran, Tehran 14395-1374, Iran.
| | | | - Erfan Saydanzad
- Nanoelectronics Research Group, Academic Center for Education, Culture and Research (ACECR), Khajeh Nasir Toosi University of Technology, Tehran 15569-14846, Iran.
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27
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Daimon T, Nihei E. Fabrication of a Poly(3-octylthiophene-2,5-diyl) Electrochemiluminescence Device Assisted by Perylene. MATERIALS 2013; 6:1704-1717. [PMID: 28809237 PMCID: PMC5452521 DOI: 10.3390/ma6051704] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Revised: 04/21/2013] [Accepted: 04/22/2013] [Indexed: 11/24/2022]
Abstract
In this study, we report the light-emitting assistance effect of perylene on a polymer electrochemiluminescence (ECL) device using poly(3-octylthiophene-2,5-diyl) (P3OT). An ECL device is a liquid type self-luminous device with a simple structure, and can be fabricated by a relatively easy procedure. Significant improvement in luminescence properties was confirmed when 1.0 wt % perylene was added to the ECL device using 3.0 wt % P3OT. Improvements of about 12 times of the maximum luminescence intensity and about 23 times of the light-emitting time ratio compared with that of a P3OT ECL device were obtained. We conclude that the light-emitting assistance of perylene is achieved by perylene radical ions shuttling electrons to P3OT while they are moving around in the emitting solution. The light-emitting assistance effect of perylene was also confirmed when poly(3-dodecylthiophene-2,5-diyl), which has almost identical electrochemical and photophysical characteristics to those of P3OT, was used instead of P3OT.
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Affiliation(s)
- Tatsuya Daimon
- Graduate School of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
| | - Eisuke Nihei
- Graduate School of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
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