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Kallitsis K, Alvarez-Fernandez A, Cloutet E, Brochon C, Hadziioannou G. Introducing Photo-Cross-Linkable Functionalities on P(VDF-co-TrFE) Ferroelectric Copolymer. Chempluschem 2024:e202400113. [PMID: 38471131 DOI: 10.1002/cplu.202400113] [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: 02/07/2024] [Revised: 03/11/2024] [Accepted: 03/12/2024] [Indexed: 03/14/2024]
Abstract
Ferroelectric polymers have emerged as crucial materials for the development of advanced organic electronic devices. Their recent high-end commercial applications as fingerprint sensors have only increased the amount of scientific interest around them. Despite an ever-larger body of studies focusing on optimizing the properties of ferroelectric polymers by physical means (e. g., annealing, stretching, blending or nano-structuring), post-polymerization chemical modification of such polymers has only recently become a field of active study with great promise in expanding the scope of those polymers. In this work, a solution-based post-polymerization modification method was developed for the safe and facile grafting of a plethora of functional groups to the backbone of commercially available Poly(vinylidene fluoride-co-trifluoroethylene P(VDF-co-TrFE) ferroelectric polymers. To showcase the versatility of this approach, photosensitive groups were grafted onto the polymeric backbone, enabling them to undergo photo-cross-linking. Finally, these modified polymers were used as functional negative photoresists in a photolithographic process, highlighting the potential of this method to integrate ferroelectric fluorinated electroactive polymers into standard electronic microfabrication production lines.
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Affiliation(s)
- Konstantinos Kallitsis
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge, CB3 1AS, United Kingdom
- Laboratoire de Chimie des Polymères Organiques (LCPO-UMR5629), Université de Bordeaux, F-33607, Pessac, France
| | - Alberto Alvarez-Fernandez
- Centro de Fisica de Materiales (CFM) (CSIC-UPV/EHU), Material Physics Centre, Paseo Manuel de Lardizabal 5, San Sebastian, 20018, Spain
| | - Eric Cloutet
- Laboratoire de Chimie des Polymères Organiques (LCPO-UMR5629), Université de Bordeaux, F-33607, Pessac, France
| | - C Brochon
- Laboratoire de Chimie des Polymères Organiques (LCPO-UMR5629), Université de Bordeaux, F-33607, Pessac, France
| | - G Hadziioannou
- Laboratoire de Chimie des Polymères Organiques (LCPO-UMR5629), Université de Bordeaux, F-33607, Pessac, France
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2
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Weiss T, Wahab A, Bronstein AM, Gershoni-Poranne R. Interpretable Deep-Learning Unveils Structure-Property Relationships in Polybenzenoid Hydrocarbons. J Org Chem 2023; 88:9645-9656. [PMID: 36696660 DOI: 10.1021/acs.joc.2c02381] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
In this work, interpretable deep learning was used to identify structure-property relationships governing the HOMO-LUMO gap and the relative stability of polybenzenoid hydrocarbons (PBHs) using a ring-based graph representation. This representation was combined with a subunit-based perception of PBHs, allowing chemical insights to be presented in terms of intuitive and simple structural motifs. The resulting insights agree with conventional organic chemistry knowledge and electronic structure-based analyses and also reveal new behaviors and identify influential structural motifs. In particular, we evaluated and compared the effects of linear, angular, and branching motifs on these two molecular properties and explored the role of dispersion in mitigating the torsional strain inherent in nonplanar PBHs. Hence, the observed regularities and the proposed analysis contribute to a deeper understanding of the behavior of PBHs and form the foundation for design strategies for new functional PBHs.
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Affiliation(s)
- Tomer Weiss
- Department of Computer Science, Technion - Israel Institute of Technology, Haifa32000, Israel
| | - Alexandra Wahab
- Laboratory for Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich8093, Switzerland
| | - Alex M Bronstein
- Department of Computer Science, Technion - Israel Institute of Technology, Haifa32000, Israel
| | - Renana Gershoni-Poranne
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa32000, Israel
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3
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Kotowicz S, Korzec M, Małecki JG, Golba S, Siwy M, Maćkowski S, Schab-Balcerzak E. Six New Unsymmetrical Imino-1,8-naphthalimide Derivatives Substituted at 3-C Position-Photophysical Investigations. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7043. [PMID: 36234384 PMCID: PMC9573252 DOI: 10.3390/ma15197043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 10/01/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
In this research, six novel unsymmetrical imino-1,8-naphthalimides (AzNI) were synthesized. Comprehensive thermal (thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC), optical (UV-Vis, photoluminescence), and electrochemical (CV, DPV) studies were carried out to characterize these new compounds. The molecules showed the onset of thermal decomposition in the temperature range 283-372 °C and molecular glass behavior. Imino-1,8-naphthalimides underwent reduction and oxidation processes with the electrochemical energy band gap (Eg) below 2.41 eV. The optical properties were evaluated in solvents with different polarities and in the solid-state as a thin films and binary blends with poly(N-vinylcarbazole): (2-tert-butylphenyl-5-biphenyl-1,3,4-oxadiazole) (PVK:PBD). Presented compounds emitted blue light in the solutions and in the green or violet spectral range in the solid-state. Their ability to emit light under external voltage was examined. The devices with guest-host structure emitted light with the maximum located in the blue to red spectral range of the electroluminescence band (EL) depending on the content of the AzNI in the PVK:PBD matrix (guest-host structure).
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Affiliation(s)
- Sonia Kotowicz
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland
| | - Mateusz Korzec
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland
| | - Jan Grzegorz Małecki
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland
| | - Sylwia Golba
- Institute of Materials Science, University of Silesia, 41-500 Chorzow, Poland
| | - Mariola Siwy
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Sklodowska Str., 41-819 Zabrze, Poland
| | - Sebastian Maćkowski
- Faculty of Physics, Astronomy and Informatics, Institute of Physics, Nicolaus Copernicus University, 5 Grudziadzka Str., 87-100 Torun, Poland
| | - Ewa Schab-Balcerzak
- Institute of Chemistry, University of Silesia, 9 Szkolna Str., 40-006 Katowice, Poland
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Sklodowska Str., 41-819 Zabrze, Poland
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4
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Danielson MK, Chen J, Vaclavek AK, Colley ND, Alli AH, Loomis RA, Barnes JC. Photoinduced Electron Transfer and Changes in Surface Free Energy in Polythiophene-Polyviologen Bilayered Thin Films. ACS POLYMERS AU 2021; 2:118-128. [PMID: 36855341 PMCID: PMC9954201 DOI: 10.1021/acspolymersau.1c00036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Bipyridiniums, also known as viologens, are well-documented electron acceptors that are generally easy to synthesize on a large scale and reversibly cycle between three oxidation states (V2+, V•+, and V0). Accordingly, they have been explored in a number of applications that capitalize on their dynamic redox chemistry, such as redox-flow batteries and electrochromic devices. Viologens are also particularly useful in photoinduced electron transfer (PET) processes and therefore are of interest in photovoltaic applications that typically rely on electron-rich donors like polythiophene (PTh). However, the PET mechanism and relaxation dynamics between interfacing PTh and viologen-based thin films has not been well studied as a function of thickness of the acceptor layer. Here, a novel, bilayered thin film composite was fabricated by first spin-coating PTh onto glass slides, followed by spin-coating and curing polyviologen (PV)-based micron-sized films of variable thicknesses (0.5-11.3 μm) on top of the PTh layer. The electron-transfer mechanism and relaxation dynamics from the PTh sublayer into the upper PV film were investigated using femtosecond transient absorption (fTA) spectroscopy and electrochemistry to better understand how the charge-transfer/relaxation lifetimes could be extended using thicker PV acceptor films. The fTA experiments were performed under inert N2 conditions as well as in ambient O2. The latter shortened the lifetimes of the electrons in the PV layer, presumably due to O2 triplet-based trap sites. Contact angle measurements using H2O and MeI were also performed on top of the bilayered films to measure changes in surface free energy that would aid the assessment related to efficiency of the combined processes involving light penetration, photoexcitation, electron mobility, and relaxation from within the bilayered thin films. Insights gained from this work will support the development of future devices that employ viologen-based materials as an alternative electron-acceptor that is both easily processable and scalable.
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5
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Álvarez-Venicio V, Caldera-Villalobos M, Arcos-Ramos R, Guerra-Pulido JO, de la O-Cuevas E, Velázquez V, Rivera M, Basiuk VA, Carreón-Castro MDP. Photophysical and morphological properties of Langmuir–Blodgett films of benzothiadiazole derivatives. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-020-01366-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Paramasivam K, Fialho CB, Cruz TFC, Rodrigues AI, Ferreira B, Gomes CSB, Vila-Viçosa D, Charas A, Esperança JMSS, Vieira Ferreira LF, Calhorda MJ, Maçanita AL, Morgado J, Gomes PT. New luminescent tetracoordinate boron complexes: an in-depth experimental and theoretical characterisation and their application in OLEDs. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00403d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
New luminescent 2-iminopyrrolyl boron complexes with different BX2 moieties are extensively studied via complementary experimental and theoretical methodologies, including application in OLEDs.
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Affiliation(s)
- Krishnamoorthy Paramasivam
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Centre for Environmental Research, Department of Chemistry, Kongu Engineering College, Perundurai, Erode 638 060, India
| | - Carina B. Fialho
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Tiago F. C. Cruz
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Ana I. Rodrigues
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Bruno Ferreira
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Clara S. B. Gomes
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- UCIBIO-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Diogo Vila-Viçosa
- BioISI - Biosystems & Integrative Sciences Institute, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Ed. C8, 1749-016 Lisboa, Portugal
| | - Ana Charas
- Instituto de Telecomunicações, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - José M. S. S. Esperança
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Luís F. Vieira Ferreira
- BSIRG – Biospectroscopy and Interfaces Research Group, IBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - Maria José Calhorda
- BioISI - Biosystems & Integrative Sciences Institute, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Ed. C8, 1749-016 Lisboa, Portugal
| | - António L. Maçanita
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Jorge Morgado
- Instituto de Telecomunicações, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Pedro T. Gomes
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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7
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Molecular Weight Effects of Biscarbazole-Based Hole Transport Polymers on the Performance of Solid-State Dye-Sensitized Solar Cells. NANOMATERIALS 2020; 10:nano10122516. [PMID: 33333855 PMCID: PMC7765262 DOI: 10.3390/nano10122516] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 12/12/2020] [Accepted: 12/14/2020] [Indexed: 11/17/2022]
Abstract
The leakage and volatilization of liquid electrolytes limit the commercialization of dye-sensitized solar cells (DSCs). As solid-state (ss) hole-transporting materials, free from leakage and volatilization, biscarbazole-based polymers with different molecular weights (PBCzA-H (21,200 g/mol) and PBCzA-L (2450 g/mol)) were applied in combination with additives to produce ssDSCs. An ssDSC with PBCzA-H showed a better short-circuit current (Jsc), open-circuit voltage (Voc), and fill factor (FF) than a device with PBCzA-L, resulting in 38% higher conversion efficiency. Compared to the PBCzA-L, the PBCzA-H with a higher molecular weight showed faster hole mobility and larger conductivity, leading to elevations in Jsc via rapid hole transport, Voc via rapid hole extraction, and FF via lowered series and elevated shunt resistances. Thus, it is believed that PBCzA-H is a useful candidate for replacing liquid electrolytes.
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8
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Anchan K, Puttappa NH, Poongavanam B, Sarkar SK. Microwave assisted rapid synthesis of phenoxazines and benzopyridoxazines. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1849723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Kavitha Anchan
- Research and Development Centre, Bharathiar University, Coimbatore, India
- Discovery Chemistry, Syngene International Limited, Bangalore, India
| | - Nagaswarupa H. Puttappa
- Research and Development Centre, Bharathiar University, Coimbatore, India
- Department of studies in chemistry, Davangere University, Davangere, India
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9
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Mikhailov IE, Artyushkina YM, Dushenko GA, Minkin VI. Synthesis and Spectral-Luminescent Properties of
2-Aryl-5-butyl-1,3,4-oxadiazoles. RUSS J GEN CHEM+ 2020. [DOI: 10.1134/s1070363220110079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Talebi S, Daraghma SMA, Subramaniam RT, Bhassu S, Gnana Kumar G, Periasamy V. Printed-Circuit-Board-Based Two-Electrode System for Electronic Characterization of Proteins. ACS OMEGA 2020; 5:7802-7808. [PMID: 32309689 PMCID: PMC7160841 DOI: 10.1021/acsomega.9b03831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 02/27/2020] [Indexed: 06/11/2023]
Abstract
Proteins have been increasingly suggested as suitable candidates for the fabrication of biological computers and other biomolecular-based electronic devices mainly due to their interesting structure-related intrinsic electrical properties. These natural biopolymers are environmentally friendly substitutes for conventional inorganic materials and find numerous applications in bioelectronics. Effective manipulation of protein biomolecules allows for accurate fabrication of nanoscaled device dimensions for miniaturized electronics. The prerequisite, however, demands an interrogation of its various electronic properties prior to understanding the complex charge transfer mechanisms in protein molecules, the knowledge of which will be crucial toward development of such nanodevices. One significantly preferred method in recent times involves the utilization of solid-state sensors where interactions of proteins could be investigated upon contact with metals such as gold. Therefore, in this work, proteins (hemoglobin and collagen) were integrated within a two-electrode system, and the resulting electronic profiles were investigated. Interestingly, structure-related electronic profiles representing semiconductive-like behaviors were observed. These characteristic electronic profiles arise from the metal (Au)-semiconductor (protein) junction, clearly demonstrating the formation of a Schottky junction. Further interpretation of the electronic behavior of proteins was done by the calculation of selected solid-state parameters. For example, the turn-on voltage of hemoglobin was measured to occur at a lower turn-on voltage, indicating the possible influence of the hem group present as a cofactor in each subunit of this tetrameric protein.
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Affiliation(s)
- Sara Talebi
- Low
Dimensional Materials Research Centre (LDMRC), Department of Physics,
Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
- Centre
for Ionics University of Malaya, Department of Physics, Faculty of
Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
- Institute
of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Souhad M. A. Daraghma
- Low
Dimensional Materials Research Centre (LDMRC), Department of Physics,
Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Ramesh T. Subramaniam
- Centre
for Ionics University of Malaya, Department of Physics, Faculty of
Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Subha Bhassu
- Institute
of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Georgepeter Gnana Kumar
- Department
of Physical Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625021, Tamil Nadu, India
| | - Vengadesh Periasamy
- Low
Dimensional Materials Research Centre (LDMRC), Department of Physics,
Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
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11
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de Araújo RS, de Alcântara AM, Abegão LM, de Souza YP, Brandão Silva AC, Machado R, Joatan Rodrigues J, Rodriguez Pliego J, d'Errico F, Siqueira Valle M, de Alencar MARC. Second harmonic generation in pyrazoline derivatives of dibenzylideneacetones and chalcone: A combined experimental and theoretical approach. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2019.112147] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Mikhailov IE, Artyushkina YM, Dushenko GA, Minkin VI. Synthesis and Spectral-Luminescent Properties of 2,5-Diaryl-1,3,4-oxadiazoles and Their Chelate Complexes with Cadmium(II). RUSS J GEN CHEM+ 2019. [DOI: 10.1134/s107036321910030x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Vinayakumara DR, Kesavan R, Kumar S, Adhikari AV. New cyanopyridone-based unsymmetrical dyads: the effect of donor strength on their optoelectronic properties. Photochem Photobiol Sci 2019; 18:2052-2060. [PMID: 31332409 DOI: 10.1039/c9pp00046a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we describe the design, synthesis and optoelectronic characterization of a new series of highly fluorescent dyes configured with a D-A-D' architecture, viz. CP1 to CP7. In the new molecular design, various electron-donating scaffolds were integrated with an efficient electron-accepting trialkoxyphenyl-substituted cyanopyridone moiety to study the effect of donor strength on their thermal and opto-physical properties. A detailed investigation of their thermal properties reveals that they are thermally robust with high melting and decomposition temperatures. Furthermore, in-depth photophysical studies expose their remarkable fluorescence ability in both solution and aggregated state within a wide spectral range from blue to orange. Evidently, among all the fluorophores, dyads bearing amino donors were found to be highly intense emitters due to their superior donating strength. Furthermore, solvatochromic studies showcase their ICT-dominated optoelectronic properties and it was confirmed by different correlation studies. Finally, the experimental results were correlated with their quantum chemical simulation data.
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Affiliation(s)
- D R Vinayakumara
- Organic Materials Laboratory, Department of Chemistry, National Institute of Technology Karnataka, Surathkal, Mangalore 575 025, India.
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14
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Kang YJ, Bail R, Lee CW, Chin BD. Inkjet Printing of Mixed-Host Emitting Layer for Electrophosphorescent Organic Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2019; 11:21784-21794. [PMID: 31132238 DOI: 10.1021/acsami.9b04675] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We have investigated the impact of the ink formulation on the properties of an inkjet-printed small molecular mixed host in a phosphorescent organic light-emitting diode (PhOLED). Host solubility, film roughness, and device efficiency improved by blending tris(4-carbazoyl-9-ylphenyl)amine (TCTA) with pyrido[3',2':4,5]furo[2,3- b]pyridine (3CzPFP). At a host ratio of 60:40 (TCTA/3CzPFP), the brightness increased by 33%, the efficiency roll-off at 1000 cd/m2 dropped to well below 10%, and the luminance half-lifetime (LT50) improved by 80% in comparison to the device with a single host (100% TCTA). When the optimized ink was deposited by inkjet printing, a maximum external quantum efficiency of 8.9% and a current efficiency of 28.8 cd/A were achieved at 1000 cd/m2 brightness. This amounted to around 84% of the efficiency of a spin-cast reference device. The obtained results provide a blueprint for designing enhanced PhOLEDs with inkjet-printed mixed hosts.
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Affiliation(s)
| | | | - Chil Won Lee
- Department of Chemistry , Dankook University , Cheonan 31116 , Korea
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15
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Kim JY, Kwak G, Choi YC, Kim DH, Han YS. Enhanced performance of perovskite solar cells by incorporation of a triphenylamine derivative into hole-transporting poly(3-hexylthiophene) layers. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.01.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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16
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Tabata Y, Kamano Y, Uji H, Imai T, Kimura S. Electronic Properties of Cyclic β-Peptide Nanotube Bundles Reflecting Structural Arrangement. CHEM LETT 2019. [DOI: 10.1246/cl.181007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yuki Tabata
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yusuke Kamano
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hirotaka Uji
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Tomoya Imai
- Human Hemisphere, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Shunsaku Kimura
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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17
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Kaya İ, Boz ME, Kolcu F. 3-Aminopropyltriethoxysilane-mediated (phenoxy-imine) polymers: synthesis and characterization. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-018-2457-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Douvogianni E, Qiu X, Qiu L, Jahani F, Kooistra FB, Hummelen JC, Chiechi RC. Soft Nondamaging Contacts Formed from Eutectic Ga-In for the Accurate Determination of Dielectric Constants of Organic Materials. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2018; 30:5527-5533. [PMID: 30197469 PMCID: PMC6122948 DOI: 10.1021/acs.chemmater.8b02212] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 08/03/2018] [Indexed: 05/29/2023]
Abstract
A method for accurately measuring the relative dielectric constant (εr) of thin films of soft, organic materials is described. The effects of the bombardment of these materials with hot Al atoms, the most commonly used top electrode, are mitigated by using electrodes fabricated from eutectic gallium-indium (EGaIn). The geometry of the electrode is defined by injection into microchannels to form stable structures that are nondamaging and that conform to the topology of the organic thin film. The εr of a series of references and new organic materials, polymers, and fullerene derivatives was derived from impedance spectroscopy measurements for both Al and EGaIn electrodes showing the specific limitations of Al with soft, organic materials and overcoming them with EGaIn to determine their dielectric properties and provide realistic values of εr.
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Affiliation(s)
- Evgenia Douvogianni
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
- Zernike
Institute
for Advanced Materials, Nijenborgh
4, 9747 AG Groningen, The Netherlands
| | - Xinkai Qiu
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
- Zernike
Institute
for Advanced Materials, Nijenborgh
4, 9747 AG Groningen, The Netherlands
| | - Li Qiu
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
- Zernike
Institute
for Advanced Materials, Nijenborgh
4, 9747 AG Groningen, The Netherlands
| | - Fatemeh Jahani
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
- Zernike
Institute
for Advanced Materials, Nijenborgh
4, 9747 AG Groningen, The Netherlands
| | - Floris B. Kooistra
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
- Zernike
Institute
for Advanced Materials, Nijenborgh
4, 9747 AG Groningen, The Netherlands
| | - Jan C. Hummelen
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
- Zernike
Institute
for Advanced Materials, Nijenborgh
4, 9747 AG Groningen, The Netherlands
| | - Ryan C. Chiechi
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
- Zernike
Institute
for Advanced Materials, Nijenborgh
4, 9747 AG Groningen, The Netherlands
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19
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Mikhailov IE, Popov LD, Dushenko GA, Revinskii YV, Minkin VI. Spectral Luminescent Properties of 3-[5-(4-Methoxyphenyl)-1,3,4-oxadiazol-2-yl]acrylic Acid and Its Complex with Zn(II). RUSS J GEN CHEM+ 2018. [DOI: 10.1134/s1070363218040369] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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20
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Mikhailov IE, Popov LD, Tkachev VV, Aldoshin SM, Dushenko GA, Revinskii YV, Minkin VI. Synthesis and crystal structure of novel fluorescent 1,3,4-oxadiazole-containing carboxylate ligands. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.12.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Phenanthridine based Ir(III) complex for blue phosphorescent organic light-emitting diodes with long-term operational stability. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2017.09.052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Lozano-Hernández LA, Maldonado JL, Garcias-Morales C, Espinosa Roa A, Barbosa-García O, Rodríguez M, Pérez-Gutiérrez E. Efficient OLEDs Fabricated by Solution Process Based on Carbazole and Thienopyrrolediones Derivatives. Molecules 2018; 23:E280. [PMID: 29385678 PMCID: PMC6017460 DOI: 10.3390/molecules23020280] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 01/26/2018] [Accepted: 01/26/2018] [Indexed: 11/17/2022] Open
Abstract
Four low molecular weight compounds-three of them new, two of them with carbazole (Cz) as functional group and the other two with thienopyrroledione (TPD) group-were used as emitting materials in organic light emitting diodes (OLEDs). Devices were fabricated with the configuration ITO/PEDOT:PSS/emitting material/LiF/Al. The hole injector layer (HIL) and the emitting sheet were deposited by spin coating; LiF and Al were thermally evaporated. OLEDs based on carbazole derivatives show luminances up to 4130 cd/m², large current efficiencies about 20 cd/A and, cautiously, a very impressive External Quantum Efficiency (EQE) up to 9.5%, with electroluminescence peaks located around 490 nm (greenish blue region). Whereas, devices manufactured with TPD derivatives, present luminance up to 1729 cd/m², current efficiencies about 4.5 cd/A and EQE of 1.5%. These results are very competitive regarding previous reported materials/devices.
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Affiliation(s)
- Luis-Abraham Lozano-Hernández
- Research Group of Optical Properties of Materials (GPOM), Centro de Investigaciones en Óptica, 37000 León, Guanajuato, Mexico.
| | - José-Luis Maldonado
- Research Group of Optical Properties of Materials (GPOM), Centro de Investigaciones en Óptica, 37000 León, Guanajuato, Mexico.
| | - Cesar Garcias-Morales
- Research Group of Optical Properties of Materials (GPOM), Centro de Investigaciones en Óptica, 37000 León, Guanajuato, Mexico.
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, 25280 Saltillo, Coahuila, Mexico.
| | - Arian Espinosa Roa
- Research Group of Optical Properties of Materials (GPOM), Centro de Investigaciones en Óptica, 37000 León, Guanajuato, Mexico.
| | - Oracio Barbosa-García
- Research Group of Optical Properties of Materials (GPOM), Centro de Investigaciones en Óptica, 37000 León, Guanajuato, Mexico.
| | - Mario Rodríguez
- Research Group of Optical Properties of Materials (GPOM), Centro de Investigaciones en Óptica, 37000 León, Guanajuato, Mexico.
| | - Enrique Pérez-Gutiérrez
- CONACYT-Laboratorio de Polímeros, Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla (BUAP), Complejo de Ciencias, ICUAP, 72570 Puebla, Puebla, Mexico.
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23
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Pelzer KM, Vázquez-Mayagoitia Á, Ratcliff LE, Tretiak S, Bair RA, Gray SK, Van Voorhis T, Larsen RE, Darling SB. Molecular dynamics and charge transport in organic semiconductors: a classical approach to modeling electron transfer. Chem Sci 2017; 8:2597-2609. [PMID: 28553494 PMCID: PMC5431633 DOI: 10.1039/c6sc04547b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 01/03/2017] [Indexed: 11/21/2022] Open
Abstract
Organic photovoltaics (OPVs) are a promising carbon-neutral energy conversion technology, with recent improvements pushing power conversion efficiencies over 10%. A major factor limiting OPV performance is inefficiency of charge transport in organic semiconducting materials (OSCs). Due to strong coupling with lattice degrees of freedom, the charges form polarons, localized quasi-particles comprised of charges dressed with phonons. These polarons can be conceptualized as pseudo-atoms with a greater effective mass than a bare charge. We propose that due to this increased mass, polarons can be modeled with Langevin molecular dynamics (LMD), a classical approach with a computational cost much lower than most quantum mechanical methods. Here we present LMD simulations of charge transfer between a pair of fullerene molecules, which commonly serve as electron acceptors in OSCs. We find transfer rates consistent with experimental measurements of charge mobility, suggesting that this method may provide quantitative predictions of efficiency when used to simulate materials on the device scale. Our approach also offers information that is not captured in the overall transfer rate or mobility: in the simulation data, we observe exactly when and why intermolecular transfer events occur. In addition, we demonstrate that these simulations can shed light on the properties of polarons in OSCs. Much remains to be learned about these quasi-particles, and there are no widely accepted methods for calculating properties such as effective mass and friction. Our model offers a promising approach to exploring mass and friction as well as providing insight into the details of polaron transport in OSCs.
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Affiliation(s)
- Kenley M Pelzer
- Center for Nanoscale Materials , Argonne National Laboratory , 9700 Cass Ave., Lemont , IL 60439 , USA . ; Tel: +1-630-252-7020
- Materials Science Division , Argonne National Laboratory , 9700 Cass Ave, Lemont , IL 60439 , USA
| | - Álvaro Vázquez-Mayagoitia
- Argonne Leadership Computing Facility , Argonne National Laboratory , 9700 Cass Ave. , Lemont , IL 60439 , USA
| | - Laura E Ratcliff
- Argonne Leadership Computing Facility , Argonne National Laboratory , 9700 Cass Ave. , Lemont , IL 60439 , USA
| | - Sergei Tretiak
- Theoretical Division , Center for Nonlinear Studies , Center for Integrated Nanotechnologies , Los Alamos National Laboratory , Los Alamos , NM 87545 , USA
| | - Raymond A Bair
- Mathematics and Computer Science Division , Argonne National Laboratory , 9700 Cass Ave. , Argonne , IL 60439 , USA
- Computation Institute , University of Chicago , 5735 S. Ellis Ave. , Chicago , IL 60637 , USA
- Computer, Environment, and Life Sciences , Argonne National Laboratory , 9700 Cass Ave. , Lemont , IL 60439 , USA
| | - Stephen K Gray
- Center for Nanoscale Materials , Argonne National Laboratory , 9700 Cass Ave., Lemont , IL 60439 , USA . ; Tel: +1-630-252-7020
- Computation Institute , University of Chicago , 5735 S. Ellis Ave. , Chicago , IL 60637 , USA
| | - Troy Van Voorhis
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Ave , Cambridge , MA 02139 , USA
| | - Ross E Larsen
- Computational Science Center , National Renewable Energy Laboratory , 15301 Denver W. Parkway, Golden , CO 80401 , USA
| | - Seth B Darling
- Center for Nanoscale Materials , Argonne National Laboratory , 9700 Cass Ave., Lemont , IL 60439 , USA . ; Tel: +1-630-252-7020
- Institute for Molecular Engineering , University of Chicago , 5747 S. Ellis Ave. , Chicago , IL 60637 , USA
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24
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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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25
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Lyu L, Cai L, Wang Y, Huang J, Zeng X, Liu P. One-pot, two-step synthesis and photophysical properties of 2-(5-phenylindol-3-yl)benzimidazole derivatives. RSC Adv 2017. [DOI: 10.1039/c7ra09864b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
A one-pot, two-step procedure is developed for synthesis of fluorescent 2-(5-phenylindol-3-yl)benzimidazoles with high yield.
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Affiliation(s)
- Liu Lyu
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou
- China
| | - Liu Cai
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou
- China
| | - Yun Wang
- Centre for Clean Environment and Energy
- Griffith University
- Australia
| | - Jinfeng Huang
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou
- China
| | - Xiangchao Zeng
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou
- China
| | - Porun Liu
- Centre for Clean Environment and Energy
- Griffith University
- Australia
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26
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Cao J, Xie ZZ, Yu X. Excited-state dynamics of oxazole: A combined electronic structure calculations and dynamic simulations study. Chem Phys 2016. [DOI: 10.1016/j.chemphys.2016.05.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Jeon SK, Yook KS, Lee JY. Highly efficient exciplex organic light-emitting diodes using thermally activated delayed fluorescent emitters as donor and acceptor materials. NANOTECHNOLOGY 2016; 27:224001. [PMID: 27098231 DOI: 10.1088/0957-4484/27/22/224001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Highly efficient exciplex type organic light-emitting diodes were developed using thermally activated delayed fluorescent emitters as donors and acceptors of an exciplex. Blue emitting bis[4-(9,9-dimethyl-9,10-dihydroacridine)phenyl]sulfone (DMAC-DPS) was a donor and 9,9'-(5-(4,6-diphenyl-1,3,5-triazin-2-yl)-1,3-phenylene)bis(9H-carbazole) (DDCzTrz) and 9,9',9″-(5-(4,6-diphenyl-1,3,5-triazin-2-yl)benzene-1,2,3-triyl)tris(9H-carbazole) (TCzTrz) were acceptor materials. The exciplexes of DMAC-DPS:TCzTrz and DMAC-DPS:DDCzTrz resulted in high photoluminescence quantum yield and high quantum efficiency in the green exciplex organic light-emitting diodes. High quantum efficiencies of 13.4% and 15.3% were obtained in the DMAC-DPS:DDCzTrz and DMAC-DPS:TCzTrz exciplex devices.
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Affiliation(s)
- Sang Kyu Jeon
- School of Chemical Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi, 440-746, Korea
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28
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Xie Y, Zheng J, Lan Z. Full-dimensional multilayer multiconfigurational time-dependent Hartree study of electron transfer dynamics in the anthracene/C60 complex. J Chem Phys 2016; 142:084706. [PMID: 25725750 DOI: 10.1063/1.4909521] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Electron transfer at the donor-acceptor heterojunctions plays a critical role in the photoinduced process during the solar energy conversion in organic photovoltaic materials. We theoretically investigate the electron transfer process in the anthracene/C60 donor-acceptor complex by using quantum dynamics calculations. The electron-transfer model Hamiltonian with full dimensionality was built by quantum-chemical calculations. The quantum dynamics calculations were performed using the multiconfigurational time-dependent Hartree (MCTDH) theory and multilayer (ML) MCTDH methods. The latter approach (ML-MCTDH) allows us to conduct the comprehensive study on the quantum evolution of the full-dimensional electron-transfer model including 4 electronic states and 246 vibrational degrees of freedom. Our quantum dynamics calculations exhibit the ultrafast anthracene → C60 charge transfer process because of the strong coupling between excitonic and charge transfer states. This work demonstrates that the ML-MCTDH is a very powerful method to treat the quantum evolution of complex systems.
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Affiliation(s)
- Yu Xie
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Jie Zheng
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Zhenggang Lan
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
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29
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Hwang KH, Kim DH, Choi MH, Han JP, Moon DK. Effect of side chain position and conformation of quinacridone–quinoxaline based conjugated polymers on photovoltaic properties. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2015.10.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Liu J, McCarthy D, Tong L, Cowan MJ, Kinsley JM, Sonnenberg L, Skorenko KH, Boyer SM, DeCoste JB, Bernier WE, Jones WE. Poly(3,4-ethylenedioxythiophene) (PEDOT) infused TiO2 nanofibers: the role of hole transport layer in photocatalytic degradation of phenazopyridine as a pharmaceutical contaminant. RSC Adv 2016. [DOI: 10.1039/c6ra22797j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
PEDOT infused TiO2 nanofibers exhibit enhanced photocatalytic performance by improved hole transfer for the degradation of PAP.
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Affiliation(s)
- Jian Liu
- Department of Chemistry
- Binghamton University-State University of New York
- Binghamton
- USA
| | - Danielle L. McCarthy
- Department of Chemistry
- Binghamton University-State University of New York
- Binghamton
- USA
| | - Linyue Tong
- Department of Chemistry
- Binghamton University-State University of New York
- Binghamton
- USA
| | - Michael J. Cowan
- Department of Chemistry
- Binghamton University-State University of New York
- Binghamton
- USA
| | - John M. Kinsley
- Department of Chemistry
- Binghamton University-State University of New York
- Binghamton
- USA
| | - Laura Sonnenberg
- Department of Chemistry
- Binghamton University-State University of New York
- Binghamton
- USA
| | - Kenneth H. Skorenko
- Department of Chemistry
- Binghamton University-State University of New York
- Binghamton
- USA
| | - Steven M. Boyer
- Department of Chemistry
- Binghamton University-State University of New York
- Binghamton
- USA
| | | | - William E. Bernier
- Department of Chemistry
- Binghamton University-State University of New York
- Binghamton
- USA
| | - Wayne E. Jones
- Department of Chemistry
- Binghamton University-State University of New York
- Binghamton
- USA
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31
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Yook KS, Lee JY. Bipolar Host Materials for Organic Light-Emitting Diodes. CHEM REC 2015; 16:159-72. [DOI: 10.1002/tcr.201500221] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Indexed: 01/19/2023]
Affiliation(s)
- Kyoung Soo Yook
- School of Chemical Engineering Sungkyunkwan University; 2066, Seobu-ro Jangan-gu Suwon Gyeonggi 440-746 Republic of Korea
- School of Mechanical Engineering Sungkyunkwan University; 2066, Seobu-ro Jangan-gu Suwon Gyeonggi 440-746 Republic of Korea
| | - Jun Yeob Lee
- School of Chemical Engineering Sungkyunkwan University; 2066, Seobu-ro Jangan-gu Suwon Gyeonggi 440-746 Republic of Korea
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32
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Efficient single-emitting layer hybrid white organic light-emitting diodes with low efficiency roll-off, stable color and extremely high luminance. J IND ENG CHEM 2015. [DOI: 10.1016/j.jiec.2015.05.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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33
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34
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Liu B, Xu Z, Zou J, Tao H, Xu M, Gao D, Lan L, Wang L, Ning H, Peng J. High-performance hybrid white organic light-emitting diodes employing p-type interlayers. J IND ENG CHEM 2015. [DOI: 10.1016/j.jiec.2014.12.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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35
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Hofmann OT, Rinke P, Scheffler M, Heimel G. Integer versus Fractional Charge Transfer at Metal(/Insulator)/Organic Interfaces: Cu(/NaCl)/TCNE. ACS NANO 2015; 9:5391-404. [PMID: 25905769 PMCID: PMC4514220 DOI: 10.1021/acsnano.5b01164] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 04/23/2015] [Indexed: 05/17/2023]
Abstract
Semilocal and hybrid density functional theory was used to study the charge transfer and the energy-level alignment at a representative interface between an extended metal substrate and an organic adsorbate layer. Upon suppressing electronic coupling between the adsorbate and the substrate by inserting thin, insulating layers of NaCl, the hybrid functional localizes charge. The laterally inhomogeneous charge distribution resulting from this spontaneous breaking of translational symmetry is reflected in observables such as the molecular geometry, the valence and core density of states, and the evolution of the work function with molecular coverage, which we discuss for different growth modes. We found that the amount of charge transfer is determined, to a significant extent, by the ratio of the lateral spacing of the molecules and their distance to the metal. Therefore, charge transfer does not only depend on the electronic structure of the individual components but, just as importantly, on the interface geometry.
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Affiliation(s)
- Oliver T. Hofmann
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
- Graz University of Technology, Petersgasse 16, 8010 Graz, Austria
- Address correspondence to
| | - Patrick Rinke
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
- COMP/Department of Applied Physics, Aalto University School of Science, P.O. Box 11100, FI-00076 Aalto, Finland
| | - Matthias Scheffler
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Georg Heimel
- Institut für Physik, Humboldt-Universität zu Berlin, Newtonstraße 15, 12489 Berlin, Germany
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36
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van der Poll TS, Zhugayevych A, Chertkov E, Bakus RC, Coughlin JE, Teat SJ, Bazan GC, Tretiak S. Polymorphism of Crystalline Molecular Donors for Solution-Processed Organic Photovoltaics. J Phys Chem Lett 2014; 5:2700-2704. [PMID: 26277966 DOI: 10.1021/jz5012675] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Using ab initio calculations and classical molecular dynamics simulations coupled to complementary experimental characterization, four molecular semiconductors were investigated in vacuum, solution, and crystalline form. Independently, the molecules can be described as nearly isostructural, yet in crystalline form, two distinct crystal systems are observed with characteristic molecular geometries. The minor structural variations provide a platform to investigate the subtlety of simple substitutions, with particular focus on polymorphism and rotational isomerism. Resolved crystal structures offer an exact description of intermolecular ordering in the solid state. This enables evaluation of molecular binding energy in various crystallographic configurations to fully rationalize observed crystal packing on a basis of first-principle calculations of intermolecular interactions.
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Affiliation(s)
| | - Andriy Zhugayevych
- ‡Theoretical Division, Center for Nonlinear Studies and Center for Integrated Nanotechnologies, Los Alamos National Laboratory, T-12, MS B268, Los Alamos, New Mexico 87545, United States
| | - Eli Chertkov
- ‡Theoretical Division, Center for Nonlinear Studies and Center for Integrated Nanotechnologies, Los Alamos National Laboratory, T-12, MS B268, Los Alamos, New Mexico 87545, United States
| | | | | | - Simon J Teat
- §Advanced Light Source, Lawrence Berkeley National Laboratory, 6 Cyclotron Road, Berkeley, California 94720, United States
| | | | - Sergei Tretiak
- ‡Theoretical Division, Center for Nonlinear Studies and Center for Integrated Nanotechnologies, Los Alamos National Laboratory, T-12, MS B268, Los Alamos, New Mexico 87545, United States
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