1
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Wang C, Wu B, Li Y, Zhou S, Wu C, Dong T, Jiang Y, Hua Z, Song Y, Wen W, Tian J, Chai Y, Wen R, Wang C. Aggregation promotes charge separation in fullerene-indacenodithiophene dyad. Nat Commun 2024; 15:5681. [PMID: 38971813 PMCID: PMC11227505 DOI: 10.1038/s41467-024-50001-z] [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: 12/19/2023] [Accepted: 06/25/2024] [Indexed: 07/08/2024] Open
Abstract
Fast photoinduced charge separation (CS) and long-lived charge-separated state (CSS) in small-molecules facilitate light-energy conversion, while simultaneous attainment of both remains challenging. Here we accomplish this through aggregation based on fullerene-indacenodithiophene dyads. Transient absorption spectroscopy reveals that, compared to solution, the CS time in aggregates is accelerated from 41.5 ps to 0.4 ps, and the CSS lifetime is prolonged from 311.4 ps to 40 μs, indicating that aggregation concomitantly promotes fast CS and long-lived CSS. Fast CS arises from the hot charge-transfer states dissociation, opening up additional resonant channels to free carriers (FCs); subsequently, charge recombination into intramolecular triplet CSS becomes favorable mediated by spin-uncorrelated FCs. Different from fullerene/indacenodithiophene blends, the unique CS mechanism in dyad aggregates reduces the long-lived CSS dependence on molecular order, resulting in a CSS lifetime 200 times longer than blends. This endows the dyad aggregates to exhibit both photoelectronic switch properties and superior photocatalytic capabilities.
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Affiliation(s)
- Chong Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bo Wu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Yang Li
- School of Science, Beijing University of Posts and Telecommunications (BUPT), Beijing, 100876, China
| | - Shen Zhou
- College of Science, Hunan Key Laboratory of Mechanism and Technology of Quantum Information, National University of Defense Technology, Changsha, 410003, China
| | - Conghui Wu
- Spin-X Institute, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 511442, China
| | - Tianyang Dong
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Ying Jiang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zihui Hua
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yupeng Song
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Wei Wen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jianxin Tian
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yongqiang Chai
- Department of Chemistry and Pharmacy and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, 91058, Germany
| | - Rui Wen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chunru Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
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2
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Peng D, Zhang Z, Zhang J, Yang Y. Improving Photocatalytic Activity for Formaldehyde Degradation by Encapsulating C 60 Fullerenes into Graphite-like C 3N 4 through the Enhancement of Built-in Electric Fields. Molecules 2023; 28:5815. [PMID: 37570785 PMCID: PMC10420677 DOI: 10.3390/molecules28155815] [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: 06/13/2023] [Revised: 07/07/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
The photocatalytic degradation of formaldehyde by graphite-like C3N4 is one of the most attractive and environmentally friendly strategies to address the significant threat to human health posed by indoor air pollutants. Despite its potential, this degradation process still faces issues with suboptimal efficiency, which may be attributed to the rapid recombination of photogenerated excitons and the broad band gap. As a proof of concept, a series of graphite-like C3N4@C60 composites combining graphite-like C3N4 and C60 was developed via an in situ generation strategy. The obtained graphite-like C3N4@C60 composites exhibited a remarkable increase in the photocatalytic degradation efficiency of formaldehyde, of up to 99%, under visible light irradiation, outperforming pure graphite-like C3N4 and C60. This may be due to the composites' enhanced built-in electric field. Additionally, the proposed composites maintained a formaldehyde removal efficiency of 84% even after six cycles, highlighting their potential for indoor air purification and paving the way for the development of efficient photocatalysts.
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Affiliation(s)
- Dongmei Peng
- College of Furniture and Art Design, Central South University of Forestry and Technology, Changsha 410000, China; (D.P.); (J.Z.); (Y.Y.)
- Green Furniture Engineering Technology Research Center, National Forestry & Grassland Administration, Changsha 410004, China
- Green Home Engineering Technology Research Center, Changsha 410004, China
| | - Zhongfeng Zhang
- College of Furniture and Art Design, Central South University of Forestry and Technology, Changsha 410000, China; (D.P.); (J.Z.); (Y.Y.)
- Green Furniture Engineering Technology Research Center, National Forestry & Grassland Administration, Changsha 410004, China
- Green Home Engineering Technology Research Center, Changsha 410004, China
| | - Jijuan Zhang
- College of Furniture and Art Design, Central South University of Forestry and Technology, Changsha 410000, China; (D.P.); (J.Z.); (Y.Y.)
- Green Furniture Engineering Technology Research Center, National Forestry & Grassland Administration, Changsha 410004, China
- Green Home Engineering Technology Research Center, Changsha 410004, China
| | - Yang Yang
- College of Furniture and Art Design, Central South University of Forestry and Technology, Changsha 410000, China; (D.P.); (J.Z.); (Y.Y.)
- Green Furniture Engineering Technology Research Center, National Forestry & Grassland Administration, Changsha 410004, China
- Green Home Engineering Technology Research Center, Changsha 410004, China
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3
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Narasimha K, Albert SK, Kim J, Kang H, Kang S, Park J, Park J, Park SJ. Charge-Transfer-Induced Self-Assembly of Doped Conjugated Block Copolymer Nanofibers. ACS Macro Lett 2023; 12:382-388. [PMID: 36866815 DOI: 10.1021/acsmacrolett.2c00752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
Here, we report charge-transfer-driven self-assembly of conjugated block copolymers (BCP) into highly doped conjugated polymer nanofibers. The ground-state integer charge transfer (ICT) between a BCP composed of poly(3-hexylthiophene) and poly(ethylene oxide) (P3HT-b-PEO) and electron-deficient 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4TCNQ) induced spontaneous self-assembly of the donor and the acceptor into well-defined one-dimensional nanofibers. The presence of the PEO block plays an important role for the self-assembly by providing a polar environment that can stabilize nanoscale charge transfer (CT) assemblies. The doped nanofibers were responsive to various external stimuli such as heat, chemical, and light and exhibited efficient photothermal properties in the near-IR region. The CT-driven BCP self-assembly reported here provides a new platform for the fabrication of highly doped semiconductor nanostructures.
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Affiliation(s)
- Karnati Narasimha
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
| | - Shine K Albert
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
| | - Jongwook Kim
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
| | - Hyojung Kang
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
| | - Sungsu Kang
- School of Chemical and Biological Engineering, Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, South Korea
| | - Jungwon Park
- School of Chemical and Biological Engineering, Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, South Korea
| | - JaeHong Park
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
| | - So-Jung Park
- Department of Chemistry and Nanoscience, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea
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4
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Jeevan AK, Gopidas KR. Self-Assembly and Photochemistry of a Pyrene-Methyl Viologen Supramolecular Fiber System. J Phys Chem B 2021; 125:8539-8549. [PMID: 34313435 DOI: 10.1021/acs.jpcb.1c04417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
This paper reports the self-assembly of a donor-acceptor system into nanoscopic structures and the photo processes taking place within these structures. The donor employed is pyrene linked to two β-cyclodextrin molecules (CD-PY-CD), and adamantane-linked methyl viologen attached to the three arms of mesitylene (Ms-(MV2+-AD)3) is the acceptor. CD-PY-CD and Ms-(MV2+-AD)3 when dissolved in water self-assembled into vesicles, which joined together to give long fibers. The self-assembly was studied using spectroscopic and microscopic techniques. Fluorescence of the pyrene chromophore was quenched within the self-assembled system due to efficient photoinduced electron transfer to methyl viologen. Photoinduced electron transfer within the assembly is confirmed through identification of product radical ions in flash photolysis experiments. Steady-state irradiation of the self-assembled system in an optical bench led to the formation of methyl viologen radical cation, which was stable for a few hours. Longevity of the radical cation was attributed to the fast reaction of pyrene radical cation with adjacent pyrene to give an unstable adduct, which slows down the back electron transfer process.
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Affiliation(s)
- Athira K Jeevan
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695 019, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 200 002, India
| | - Karical R Gopidas
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695 019, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 200 002, India
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5
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Madhu M, Ramakrishnan R, Vijay V, Hariharan M. Free Charge Carriers in Homo-Sorted π-Stacks of Donor-Acceptor Conjugates. Chem Rev 2021; 121:8234-8284. [PMID: 34133137 DOI: 10.1021/acs.chemrev.1c00078] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Inspired by the high photoconversion efficiency observed in natural light-harvesting systems, the hierarchical organization of molecular building blocks has gained impetus in the past few decades. Particularly, the molecular arrangement and packing in the active layer of organic solar cells (OSCs) have garnered significant attention due to the decisive role of the nature of donor/acceptor (D/A) heterojunctions in charge carrier generation and ultimately the power conversion efficiency. This review focuses on the recent developments in emergent optoelectronic properties exhibited by self-sorted donor-on-donor/acceptor-on-acceptor arrangement of covalently linked D-A systems, highlighting the ultrafast excited state dynamics of charge transfer and transport. Segregated organization of donors and acceptors promotes the delocalization of photoinduced charges among the stacks, engendering an enhanced charge separation lifetime and percolation pathways with ambipolar conductivity and charge carrier yield. Covalently linking donors and acceptors ensure a sufficient D-A interface and interchromophoric electronic coupling as required for faster charge separation while providing better control over their supramolecular assemblies. The design strategies to attain D-A conjugate assemblies with optimal charge carrier generation efficiency, the scope of their application compared to state-of-the-art OSCs, current challenges, and future opportunities are discussed in the review. An integrated overview of rational design approaches derived from the comprehension of underlying photoinduced processes can pave the way toward superior optoelectronic devices and bring in new possibilities to the avenue of functional supramolecular architectures.
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Affiliation(s)
- Meera Madhu
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala, India 695551
| | - Remya Ramakrishnan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala, India 695551
| | - Vishnu Vijay
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala, India 695551
| | - Mahesh Hariharan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala, India 695551
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6
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Jeevan AK, Gopidas KR. Photoinduced Electron Transfer in a Self-Assembled Bis(β-cyclodextrin)-Linked Pyrene/Bis(adamantane)-Linked Methyl Viologen Donor-Acceptor System in Aqueous Solution. J Phys Chem B 2021; 125:4428-4437. [PMID: 33887907 DOI: 10.1021/acs.jpcb.1c00581] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Pyrene linked to two β-CD (CD = cyclodextrin; PY = pyrene) molecules (CD-PY-CD) and methylviologen (MV2+) linked to two adamantane (AD) groups (AD-MV2+-AD) self-assembled in water to give toroidal nanostructures. Photoprocesses taking place in the femtosecond and nanosecond time ranges within the assembly are reported. Fluorescence of the pyrene chromophore was quenched in the toroid, suggesting very efficient electron transfer. Fast quenching of the pyrene fluorescence with a time constant of 6.85 ns was attributed to photoinduced electron transfer from pyrene to methyl viologen within the toroid assembly. Electron transfer leads to the formation of radical ion products, PY•+ and MV•+, which were identified in the nanosecond transient absorption spectra. Because of the close packing of chromophores, the radical ions undergo fast reactions with chromophores or similar ions in adjacent stacks to give dimeric products. Since the dimeric species are not very stable, the reactions are reversed at longer time scales to generate the radical ions, which then undergo back electron transfer and regenerate the starting materials.
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Affiliation(s)
- Athira K Jeevan
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695 019, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 200 002, India
| | - Karical R Gopidas
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695 019, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 200 002, India
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7
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Abstract
This review surveys recent progress towards robust chiral nanostructure fabrication techniques using synthetic helical polymers, the unique inferred properties that these materials possess, and their intricate connection to natural, biological chirality.
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Affiliation(s)
| | - James F. Reuther
- Department of Chemistry
- University of Massachusetts Lowell
- Lowell
- USA
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8
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Krishnan SB, Gopidas KR. Generation of Long-Lived Photoinduced Charge Separation in a Supramolecular Toroidal Assembly. J Phys Chem B 2020; 124:9546-9555. [PMID: 32897708 DOI: 10.1021/acs.jpcb.0c05410] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Efficiencies of artificial photosynthetic and photocatalytic systems depend on their ability to generate long-lived charge-separated (CS) states in photoinduced electron transfer (PET) reactions. PET, in most cases, is followed by an ultrafast back electron transfer, which severely reduces lifetime and quantum yield of CS states. Generation of a long-lived CS state is an important goal in the study of PET reactions. Herein, we report that this goal is achieved using a hierarchically self-assembled anthracene-methyl viologen donor-acceptor system. Anthracene linked to two β-cyclodextrin molecules (CD-AN-CD) and methyl viologen linked to two adamantane units (AD-MV2+-AD) form an inclusion complex in water, which further self-assembled into well-defined toroidal nanostructures. The fluorescence of anthracene is highly quenched in the self-assembled system because of PET from anthracene to methyl viologen. Irradiation of the aqueous toroidal solution led to formation of a long-lived CS state. Rational mechanisms for the formation of the toroidal nanostructures and long-lived photoinduced charge separation are presented in the paper.
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Affiliation(s)
- Sumesh B Krishnan
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695 019, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi 110001, India
| | - Karical R Gopidas
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695 019, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi 110001, India
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9
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Hafner RJ, Görl D, Sienkiewicz A, Balog S, Frauenrath H. Long‐Lived Photocharges in Supramolecular Polymers of Low‐Band‐Gap Chromophores. Chemistry 2020; 26:9506-9517. [DOI: 10.1002/chem.201904561] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Indexed: 12/26/2022]
Affiliation(s)
- Regina J. Hafner
- Institute of MaterialsEcole Polytechnique Fédérale de Lausanne (EPFL)EPFL-STI-IMX-LMOM, MXG 037, Station 12 1015 Lausanne Switzerland
| | - Daniel Görl
- Institute of MaterialsEcole Polytechnique Fédérale de Lausanne (EPFL)EPFL-STI-IMX-LMOM, MXG 037, Station 12 1015 Lausanne Switzerland
| | - Andrzej Sienkiewicz
- Institute of Condensed Matter PhysicsEcole Polytechnique Fédérale de Lausanne (EPFL)EPFL-SB-IPHYS-LPMC, PH L 1 491, Station 3 1015 Lausanne Switzerland
| | - Sandor Balog
- Adolphe Merkle InstituteUniversité de Fribourg Chemin des Verdiers 4 1700 Fribourg Switzerland
| | - Holger Frauenrath
- Institute of MaterialsEcole Polytechnique Fédérale de Lausanne (EPFL)EPFL-STI-IMX-LMOM, MXG 037, Station 12 1015 Lausanne Switzerland
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10
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Kaur R, Sen S, Larsen MC, Tavares L, Kjelstrup-Hansen J, Ishida M, Zieleniewska A, Lynch VM, Bähring S, Guldi DM, Sessler JL, Jana A. Semiconducting Supramolecular Organic Frameworks Assembled from a Near-Infrared Fluorescent Macrocyclic Probe and Fullerenes. J Am Chem Soc 2020; 142:11497-11505. [PMID: 32413261 DOI: 10.1021/jacs.0c03699] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We report here a new extended tetrathiafulvalene (exTTF)-porphyrin scaffold, 2, that acts as a ball-and-socket receptor for C60 and C70. Supramolecular interactions between 2 and these fullerenes serve to stabilize 3D supramolecular organic frameworks (SOFs) in the solid state formally comprising peapod-like linear assemblies. The SOFs prepared via self-assembly in this way act as "tunable functional materials", wherein the complementary geometry of the components and the choice of fullerene play crucial roles in defining the conductance properties. The highest electrical conductivity (σ = 1.3 × 10-8 S cm-1 at 298 K) was observed in the case of the C70-based SOF. In contrast, low conductivity was seen for the SOF based on pristine 2 (σ = 5.9 × 10-11 S cm-1 at 298 K). The conductivity seen for the C70-based SOF approaches that seen for other TTF- and fullerene-based supramolecular materials despite the fact that the present systems are metal-free and constructed entirely from neutral building blocks. Transient absorption spectroscopic measurements corroborated the formation of charge-transfer states (i.e., 2δ+/C60δ- and 2δ+/C70δ-, respectively) rather than fully charge separated states (i.e., 2•+/C60•- and 2•+/C70•-, respectively) both in solution (toluene and benzonitrile) and in the solid state at 298 K. Such findings are considered consistent with an ability to transfer charges effectively over long distances within the present SOFs, rather than, for example, the formation of energetically trapped ionic species.
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Affiliation(s)
- Ramandeep Kaur
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen, Germany
| | - Sajal Sen
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A 5300, Austin, Texas 78712-1224, United States
| | - Mads Christian Larsen
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
| | - Luciana Tavares
- Mads Clausen Institute, University of Southern Denmark, Alsion 2, 6400 Soenderborg, Denmark
| | - Jakob Kjelstrup-Hansen
- Mads Clausen Institute, University of Southern Denmark, Alsion 2, 6400 Soenderborg, Denmark
| | - Masatoshi Ishida
- Department of Chemistry and Biochemistry, Graduate School of Engineering and Center for Molecular Systems, Kyushu University, Fukuoka 819-0395, Japan
| | - Anna Zieleniewska
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen, Germany
| | - Vincent M Lynch
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A 5300, Austin, Texas 78712-1224, United States
| | - Steffen Bähring
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
| | - Dirk M Guldi
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen, Germany
| | - Jonathan L Sessler
- Center for Supramolecular Chemistry and Catalysis, Shanghai University, No. 333 Nanchen Road, Baoshan District, Shanghai 200444, P. R. China.,Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A 5300, Austin, Texas 78712-1224, United States
| | - Atanu Jana
- Center for Supramolecular Chemistry and Catalysis, Shanghai University, No. 333 Nanchen Road, Baoshan District, Shanghai 200444, P. R. China
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11
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Dumele O, Chen J, Passarelli JV, Stupp SI. Supramolecular Energy Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907247. [PMID: 32162428 DOI: 10.1002/adma.201907247] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/17/2020] [Indexed: 06/10/2023]
Abstract
Self-assembly is a bioinspired strategy to craft materials for renewable and clean energy technologies. In plants, the alignment and assembly of the light-harvesting protein machinery in the green leaf optimize the ability to efficiently convert light from the sun to form chemical bonds. In artificial systems, strategies based on self-assembly using noncovalent interactions offer the possibility to mimic this functional correlation among molecules to optimize photocatalysis, photovoltaics, and energy storage. One of the long-term objectives of the field described here as supramolecular energy materials is to learn how to design soft materials containing light-harvesting assemblies and catalysts to generate fuels and useful chemicals. Supramolecular energy materials also hold great potential in the design of systems for photovoltaics in which intermolecular interactions in self-assembled structures, for example, in electron donor and acceptor phases, maximize charge transport and avoid exciton recombination. Possible pathways to integrate organic and inorganic structures by templating strategies and electrodeposition to create materials relevant to energy challenges including photoconductors and supercapacitors are also described. The final topic discussed is the synthesis of hybrid perovskites in which organic molecules are used to modify both structure and functions, which may include chemical stability, photovoltaics, and light emission.
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Affiliation(s)
- Oliver Dumele
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Jiahao Chen
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - James V Passarelli
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
- Simpson Querrey Institute, Northwestern University, Chicago, IL, 60611, USA
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12
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Wei Y, Xu L, He S, Li C, Wu Q, Zeng X, Wang H, Liu K. Novel benzimidazole-based conjugated polyelectrolytes: synthesis, solution photophysics and fluorescent sensing of metal ions. E-POLYMERS 2020. [DOI: 10.1515/epoly-2020-0003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
AbstractTwo benzimidazole-based conjugated polyelectrolytes (+)-PPBIPV and (-)-PPBIPV which have opposite charges on their side chains were synthesized via Heck coupling reaction and characterized by 1H-NMR, UV-vis and PL spectroscopy. These two polyelectrolytes are both consisted of benzimidazole derivatives and phenylenevinylene units. The absorption and emission spectra reveal that the polymers both have solvent-dependency and concentration-dependency, and they exhibit aggregation effect in aqueous solution. In the respect of ion detection, the aqueous solution of (+)-PPBIPV has excellent selectivity and sensitivity for Fe3+. Moreover, Pd2+ can almost completely quench the fluorescence of (+)-PPBIPV in methanol solution, and its quenching constant KSV is 5.93×104 M-1. For (-)-PPBIPV, Sn2+ can double the fluorescence intensity of its aqueous solution, while (-)-PPBIPV has good identification for Fe3+ in methanol with a KSV = 3.44×105 M-1. Hence, two polyelectrolytes have considerable potential to become effective fluorescent sensing materials for some specific metal ions. All of the stoichiometric relationships between metal ions and conjugated polyelectrolytes were calculated using Benesi-Hildebrand equation.
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Affiliation(s)
- Yuhan Wei
- College of Science, Sichuan Agricultural University, Yaan625014, China
| | - Lei Xu
- College of Science, Sichuan Agricultural University, Yaan625014, China
| | - Shengjiao He
- College of Science, Sichuan Agricultural University, Yaan625014, China
| | - Chenglei Li
- College of Life Science, Sichuan Agricultural University, Yaan625014, China
| | - Qi Wu
- College of Life Science, Sichuan Agricultural University, Yaan625014, China
| | - Xianyin Zeng
- College of Life Science, Sichuan Agricultural University, Yaan625014, China
| | - Hanguang Wang
- College of Science, Sichuan Agricultural University, Yaan625014, China
| | - Kuan Liu
- College of Science, Sichuan Agricultural University, Yaan625014, China
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13
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Ji X, Xie H, Zhu C, Zou Y, Mu AU, Al-Hashimi M, Dunbar KR, Fang L. Pauli Paramagnetism of Stable Analogues of Pernigraniline Salt Featuring Ladder-Type Constitution. J Am Chem Soc 2019; 142:641-648. [DOI: 10.1021/jacs.9b12626] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Xiaozhou Ji
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
| | - Haomiao Xie
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
| | - Congzhi Zhu
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
| | - Yang Zou
- Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China
| | - Anthony U. Mu
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
| | - Mohammed Al-Hashimi
- Department of Chemistry, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
| | - Kim R. Dunbar
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
| | - Lei Fang
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
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14
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Pun AB, Asadpoordarvish A, Kumarasamy E, Tayebjee MJY, Niesner D, McCamey DR, Sanders SN, Campos LM, Sfeir MY. Ultra-fast intramolecular singlet fission to persistent multiexcitons by molecular design. Nat Chem 2019; 11:821-828. [PMID: 31406323 DOI: 10.1038/s41557-019-0297-7] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 06/14/2019] [Indexed: 11/10/2022]
Abstract
Singlet fission-that is, the generation of two triplets from a lone singlet state-has recently resurfaced as a promising process for the generation of multiexcitons in organic systems. Although advances in this area have led to the discovery of modular classes of chromophores, controlling the fate of the multiexciton states has been a major challenge; for example, promoting fast multiexciton generation while maintaining long triplet lifetimes. Unravelling the dynamical evolution of the spin- and energy conversion processes from the transition of singlet excitons to correlated triplet pairs and individual triplet excitons is necessary to design materials that are optimized for translational technologies. Here, we engineer molecules featuring a discrete energy gradient that promotes the migration of strongly coupled triplet pairs to a spatially separated, weakly coupled state that readily dissociates into free triplets. This 'energy cleft' concept allows us to combine the amplification and migration processes within a single molecule, with rapid dissociation of tightly bound triplet pairs into individual triplets that exhibit lifetimes of ~20 µs.
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Affiliation(s)
- Andrew B Pun
- Department of Chemistry, Columbia University, NewYork, NY, USA
| | - Amir Asadpoordarvish
- ARC Centre of Excellence in Exciton Science, School of Physics, University of New South Wales, Sydney, New South Wales, Australia
| | | | - Murad J Y Tayebjee
- Cavendish Laboratory, University of Cambridge, Cambridge, UK.,School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, New South Wales, Australia
| | - Daniel Niesner
- Department of Chemistry, Columbia University, NewYork, NY, USA.,Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, MA, USA
| | - Dane R McCamey
- ARC Centre of Excellence in Exciton Science, School of Physics, University of New South Wales, Sydney, New South Wales, Australia
| | - Samuel N Sanders
- Department of Chemistry, Columbia University, NewYork, NY, USA. .,Rowland Institute at Harvard, Cambridge, MA, USA.
| | - Luis M Campos
- Department of Chemistry, Columbia University, NewYork, NY, USA.
| | - Matthew Y Sfeir
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, MA, USA. .,Photonics Initiative, Advanced Science Research Center, City University of New York, New York, NY, USA. .,Department of Physics, Graduate Center, City University of New York, New York, NY, USA.
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15
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Sanders SN, Pun AB, Parenti KR, Kumarasamy E, Yablon LM, Sfeir MY, Campos LM. Understanding the Bound Triplet-Pair State in Singlet Fission. Chem 2019. [DOI: 10.1016/j.chempr.2019.05.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Chen M, Zhou S, Guo L, Wang L, Yao F, Hu Y, Li H, Hao J. Aggregation Behavior and Antioxidant Properties of Amphiphilic Fullerene C 60 Derivatives Cofunctionalized with Cationic and Nonionic Hydrophilic Groups. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6939-6949. [PMID: 31050292 DOI: 10.1021/acs.langmuir.8b03681] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Amphiphilic derivatives of fullerene C60 are attractive from viewpoints of supramolecular chemistry and biomedicine. The establishment of relationships among the molecular structure, aggregation behavior and properties such as scavenging radicals of the amphiphilic C60 derivatives is the key to push these carbon nanomaterials to real applications. In this work, six monosubstituted C60 derivatives were synthesized by a one-step quaternization of their neutral precursors, which bear Percec monodendrons terminated with oligo(poly(ethylene oxide)) (o-PEO) chain(s). The main difference among the C60 derivatives lies in the number and substituted position of the o-PEO chain(s) within the Percec monodendron. Derivative with a 4-substitution of the o-PEO chain still showed limited solubility in water. Other derivatives possessing two or three o-PEO chains exhibited much improved solubilities and rich aggregation behavior in water. It was found that the formation of aggregates is regulated both by the number and the substituted pattern of the o-PEO chains. Typical morphologies include nanosheets, nanowires, vesicles, nanotubes, and nanorods. Although the structures of the C60 derivatives are different from those of traditional surfactants, their aggregation behavior can be also well explained by applying the theory of critical packing parameter. Interestingly, the capabilities of the C60 derivatives to scavenge the hydroxyl radicals (OH·-) followed the same order of their solubility in water, where the compound bearing three o-PEO chains with a 2,3,4-substitution got the champion quenching efficiency of ∼97.79% at a concentration of 0.15 mg·mL-1 (∼0.11 mmol·L-1).
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Affiliation(s)
- Mengjun Chen
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Shengju Zhou
- School of Chemistry and Chemical Engineering , Shandong University of Technology , Zibo 255049 , China
| | - Luxuan Guo
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Lin Wang
- Analytical Center of Qilu Normal University , Jinan 250100 , China
| | - Fuxin Yao
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Yuanyuan Hu
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Hongguang Li
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials , Shandong University, Ministry of Education , Jinan 250100 , China
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17
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Amerikheirabadi F, Diaz C, Mohan N, Zope RR, Baruah T. A DFT analysis of the ground and charge-transfer excited states of Sc 3N@I h-C 80 fullerene coupled with metal-free and zinc-phthalocyanine. Phys Chem Chem Phys 2018; 20:25841-25848. [PMID: 30288541 DOI: 10.1039/c8cp03849j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Endohedral metallofullerenes and phthalocyanine derivatives are recognized as excellent active materials in organic photovoltaics (OPVs). The tri-metallic nitride endohedral C80 fullerenes have greater absorption coefficients in the visible region and electron-accepting abilities similar to C60, which can allow for higher efficiencies in OPV devices. In this work, we have investigated the ground and charge transfer excited states of two co-facial donor-acceptor (D-A) molecular conjugates formed by the non-covalent coupling of trimetallic nitride endohedral fullerene (Sc3N@Ih-C80) with metal-free (H2Pc) and zinc-phthalocyanine (ZnPc) chromophores using DFT calculations. The charge transfer (CT) excitation energies are calculated using the perturbative delta-SCF method that enforces orthogonality between the ground and excited states. The binding energies calculated using the PBE and DFT-D3 methods indicate that the dispersion effects play an important role in the stabilization of these complexes. The ground state dipole moment of the Sc3N@C80-H2Pc dyad is much larger than that of Sc3N@C80-ZnPc, but this is reversed in the excited state where the dipole moment of Sc3N@C80-ZnPc increases significantly. The lowest few excitation energies in the gas phase for the two complexes are very close, in the range of 1.51-2.66 eV for Sc3N@C80-ZnPc and 1.51-2.71 eV for the Sc3N@C80-H2Pc complex. However, the lower ionization potential and lower exciton binding energy make the Sc3N@C80-ZnPc dyad a better candidate for OPVs as compared to the Sc3N@C80-H2Pc dyad.
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Affiliation(s)
- Fatemeh Amerikheirabadi
- Computational Science Program, The University of Texas at El Paso, El Paso, Texas 79968, USA.
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18
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Hafner RJ, Tian L, Brauer JC, Schmaltz T, Sienkiewicz A, Balog S, Flauraud V, Brugger J, Frauenrath H. Unusually Long-Lived Photocharges in Helical Organic Semiconductor Nanostructures. ACS NANO 2018; 12:9116-9125. [PMID: 30138559 DOI: 10.1021/acsnano.8b03165] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Photocharge generation and formation of long-lived charge carriers are relevant in photosynthesis, photocatalysis, photovoltaics, and organic electronics. A better understanding of the factors that determine these processes in synthetic polymer semiconductors is crucial, but difficult due to their morphological inhomogeneity. Here, we report the formation of exceptionally long-lived photocharges in one-dimensional organic semiconductor nanostructures. These nanostructures consist of chiral oligopeptide-substituted thienothiophene-based chromophores and exhibit a well-defined helical arrangement of these chromophores at their core. The chromophores give rise to spectroscopic H-aggregates and show strong intermolecular excitonic coupling. We demonstrate that all of these parameters are the prerequisites required for the nanostructures to show the efficient formation of polaron-like photocharges upon irradiation with a low-power white light source. The observed charge carriers in the helical nanowires show an unusually long lifetime on the order of several hours and are formed at high concentrations of up to 3 mol % in the absence of any dedicated electron acceptor. They are observed in solution as well as in film and furthermore give rise to a light-induced increase of the macroscopic charge transport. By contrast, no such photocharge generation is observed either in non-aggregating reference systems of the same chromophores or in aggregated but non-helical systems that do not form one-dimensional nanostructures. Our results thus demonstrate a clear correlation between nanoscopic confinement and the generation of long-lived photocharges.
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Affiliation(s)
- Regina J Hafner
- Institute of Materials, Laboratory of Macromolecular and Organic Materials , Ecole Polytechnique Fédérale de Lausanne (EPFL) , EPFL-STI-IMX-LMOM, MXG 037, Station 12 , 1015 Lausanne , Switzerland
| | - Liangfei Tian
- Institute of Materials, Laboratory of Macromolecular and Organic Materials , Ecole Polytechnique Fédérale de Lausanne (EPFL) , EPFL-STI-IMX-LMOM, MXG 037, Station 12 , 1015 Lausanne , Switzerland
| | - Jan C Brauer
- Institute of Materials, Laboratory of Macromolecular and Organic Materials , Ecole Polytechnique Fédérale de Lausanne (EPFL) , EPFL-STI-IMX-LMOM, MXG 037, Station 12 , 1015 Lausanne , Switzerland
| | - Thomas Schmaltz
- Institute of Materials, Laboratory of Macromolecular and Organic Materials , Ecole Polytechnique Fédérale de Lausanne (EPFL) , EPFL-STI-IMX-LMOM, MXG 037, Station 12 , 1015 Lausanne , Switzerland
| | | | | | | | | | - Holger Frauenrath
- Institute of Materials, Laboratory of Macromolecular and Organic Materials , Ecole Polytechnique Fédérale de Lausanne (EPFL) , EPFL-STI-IMX-LMOM, MXG 037, Station 12 , 1015 Lausanne , Switzerland
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19
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Ge P, Hou H, Cao X, Li S, Zhao G, Guo T, Wang C, Ji X. Multidimensional Evolution of Carbon Structures Underpinned by Temperature-Induced Intermediate of Chloride for Sodium-Ion Batteries. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1800080. [PMID: 29938187 PMCID: PMC6010011 DOI: 10.1002/advs.201800080] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 02/13/2018] [Indexed: 05/18/2023]
Abstract
Different dimensions of carbon materials with various features have captured numerous interests due to their applications on the tremendous fields. Restricted by the raw materials and devices, the controlling of their morphology is a major challenge. Utilizing the catalytic features of the intermediates from the low-cost salts and polymerization of 0D carbon quantum dots (CQDs), 0D CQDs are expected to self-assemble into 1/2/3D carbon structures with the assistance of temperature-induced intermediates (e.g., ZnO, Ni, and Cu) from the salts (ZnCl2, NiCl2, and CuCl). The formation mechanisms are illustrated as follows: 1) the "orient induction" to evoke "vine style" growth mechanism of ZnO; 2) the "dissolution-precipitation" of Ni; and 3) the "surface adsorption self-limited" of Cu. Subsequently, the degree of graphitization, interlayer distance, and special surface area are investigated in detail. 1D structure from 700 °C as anode displays a high Na-storage capacity of 301.2 mAh g-1 at 0.1 A g-1 after 200 cycles and 107 mAh g-1 at 5.0 A g-1 after 5000 cycles. Quantitative kinetics analysis confirms the fundamentals of the enhanced rate capacity and the potential region of Na-insertion/extraction. This elaborate work opens up an avenue toward the design of carbon with multidimensions and in-depth understanding of their sodium-storage features.
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Affiliation(s)
- Peng Ge
- State Key Laboratory of Powder MetallurgyCollege of Chemistry and Chemical EngineeringCentral South UniversityChangsha410083China
| | - Hongshuai Hou
- State Key Laboratory of Powder MetallurgyCollege of Chemistry and Chemical EngineeringCentral South UniversityChangsha410083China
| | - Xiaoyu Cao
- College of ChemistryChemical and Environmental EngineeringHenan University of TechnologyZhengzhou450000China
| | - Sijie Li
- State Key Laboratory of Powder MetallurgyCollege of Chemistry and Chemical EngineeringCentral South UniversityChangsha410083China
| | - Ganggang Zhao
- State Key Laboratory of Powder MetallurgyCollege of Chemistry and Chemical EngineeringCentral South UniversityChangsha410083China
| | - Tianxiao Guo
- State Key Laboratory of Powder MetallurgyCollege of Chemistry and Chemical EngineeringCentral South UniversityChangsha410083China
| | - Chao Wang
- School of Energy Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu611731China
| | - Xiaobo Ji
- State Key Laboratory of Powder MetallurgyCollege of Chemistry and Chemical EngineeringCentral South UniversityChangsha410083China
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20
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Chen L, Wu M, Shao G, Hu J, He G, Bu T, Yi JP, Xia J. A helical perylene diimide-based acceptor for non-fullerene organic solar cells: synthesis, morphology and exciton dynamics. ROYAL SOCIETY OPEN SCIENCE 2018; 5:172041. [PMID: 29892389 PMCID: PMC5990788 DOI: 10.1098/rsos.172041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 03/27/2018] [Indexed: 05/29/2023]
Abstract
Helical perylene diimide-based (hPDI) acceptors have been established as one of the most promising candidates for non-fullerene organic solar cells (OSCs). In this work, we report a novel hPDI-based molecule, hPDI2-CN2, as an electron acceptor for OSCs. Combining the hPDI2-CN2 with a low-bandgap polymeric donor (PTB7-Th), the blending film morphology exhibited high sensitivity to various treatments (such as thermal annealing and addition of solvent additives), as evidenced by atomic force microscope studies. The power conversion efficiency (PCE) was improved from 1.42% (as-cast device) to 2.76% after thermal annealing, and a PCE of 3.25% was achieved by further addition of 1,8-diiodooctane (DIO). Femtosecond transient absorption (TA) spectroscopy studies revealed that the improved thin-film morphology was highly beneficial for the charge carrier transport and collection. And a combination of fast exciton diffusion rate and the lowest recombination rate contributed to the best performance of the DIO-treated device. This result further suggests that the molecular conformation needs to be taken into account in the design of perylene diimide-based acceptors for OSCs.
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Affiliation(s)
- Li Chen
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, No. 122 Luoshi Road, Wuhan 430070, People's Republic of China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, No. 122 Luoshi Road, Wuhan 430070, People's Republic of China
| | - Mingliang Wu
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, No. 122 Luoshi Road, Wuhan 430070, People's Republic of China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, No. 122 Luoshi Road, Wuhan 430070, People's Republic of China
| | - Guangwei Shao
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, No. 122 Luoshi Road, Wuhan 430070, People's Republic of China
| | - Jiahua Hu
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, No. 122 Luoshi Road, Wuhan 430070, People's Republic of China
| | - Guiying He
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, No. 122 Luoshi Road, Wuhan 430070, People's Republic of China
| | - Tongle Bu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, No. 122 Luoshi Road, Wuhan 430070, People's Republic of China
| | - Jian-Peng Yi
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, No. 122 Luoshi Road, Wuhan 430070, People's Republic of China
| | - Jianlong Xia
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, No. 122 Luoshi Road, Wuhan 430070, People's Republic of China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, No. 122 Luoshi Road, Wuhan 430070, People's Republic of China
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21
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Lin Z, Yang X, Xu H, Sakurai T, Matsuda W, Seki S, Zhou Y, Sun J, Wu KY, Yan XY, Zhang R, Huang M, Mao J, Wesdemiotis C, Aida T, Zhang W, Cheng SZD. Topologically Directed Assemblies of Semiconducting Sphere–Rod Conjugates. J Am Chem Soc 2017; 139:18616-18622. [DOI: 10.1021/jacs.7b10193] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhiwei Lin
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Xing Yang
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Hui Xu
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Tsuneaki Sakurai
- Department
of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Wakana Matsuda
- Department
of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Shu Seki
- Department
of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yangbin Zhou
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Jian Sun
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Kuan-Yi Wu
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Xiao-Yun Yan
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Ruimeng Zhang
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Mingjun Huang
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Jialin Mao
- Department
of Chemistry, The University of Akron, Akron, Ohio 44325, United States
| | - Chrys Wesdemiotis
- Department
of Chemistry, The University of Akron, Akron, Ohio 44325, United States
| | - Takuzo Aida
- Department
of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Wei Zhang
- South
China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou 510640, China
| | - Stephen Z. D. Cheng
- Department
of Polymer Science, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
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22
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Zhang L, Li S, Squillaci MA, Zhong X, Yao Y, Orgiu E, Samorì P. Supramolecular Self-Assembly in a Sub-micrometer Electrodic Cavity: Fabrication of Heat-Reversible π-Gel Memristor. J Am Chem Soc 2017; 139:14406-14411. [DOI: 10.1021/jacs.7b04347] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Lei Zhang
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
| | - Songlin Li
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
| | - Marco A. Squillaci
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
| | - Xiaolan Zhong
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
| | - Yifan Yao
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
| | - Emanuele Orgiu
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
| | - Paolo Samorì
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
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23
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Chauhan AK, Gupta SK, Taguchi D, Manaka T, Jha P, Veerender P, Sridevi C, Koiry SP, Gadkari SC, Iwamoto M. Enhancement of the carrier mobility of conducting polymers by formation of their graphene composites. RSC Adv 2017. [DOI: 10.1039/c6ra26195g] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Improved carrier mobility and solar cell performance in graphene composites of conducting polymers is demonstrated and analyzed.
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Affiliation(s)
- A. K. Chauhan
- Technical Physics Division
- Bhabha Atomic Research Centre
- Mumbai
- 400085 India
| | - S. K. Gupta
- Technical Physics Division
- Bhabha Atomic Research Centre
- Mumbai
- 400085 India
| | - D. Taguchi
- Department of Physical Electronics
- Tokyo Institute of Technology
- Tokyo
- Japan
| | - T. Manaka
- Department of Physical Electronics
- Tokyo Institute of Technology
- Tokyo
- Japan
| | - P. Jha
- Technical Physics Division
- Bhabha Atomic Research Centre
- Mumbai
- 400085 India
| | - P. Veerender
- Technical Physics Division
- Bhabha Atomic Research Centre
- Mumbai
- 400085 India
| | - C. Sridevi
- Technical Physics Division
- Bhabha Atomic Research Centre
- Mumbai
- 400085 India
| | - S. P. Koiry
- Technical Physics Division
- Bhabha Atomic Research Centre
- Mumbai
- 400085 India
| | - S. C. Gadkari
- Technical Physics Division
- Bhabha Atomic Research Centre
- Mumbai
- 400085 India
| | - M. Iwamoto
- Department of Physical Electronics
- Tokyo Institute of Technology
- Tokyo
- Japan
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24
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Peterhans L, Alloa E, Sheima Y, Vannay L, Leclerc M, Corminboeuf C, Hayes SC, Banerji N. Salt-induced thermochromism of a conjugated polyelectrolyte. Phys Chem Chem Phys 2017; 19:28853-28866. [DOI: 10.1039/c7cp02734f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
We report here the photophysical properties of a water-soluble polythiophene with cationic side-chains in PBS buffer solution.
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Affiliation(s)
- Lisa Peterhans
- Department of Chemistry
- University of Fribourg
- CH-1700 Fribourg
- Switzerland
| | - Elisa Alloa
- Department of Chemistry
- University of Cyprus
- Nicosia
- Cyprus
| | - Yauhen Sheima
- Department of Chemistry
- University of Fribourg
- CH-1700 Fribourg
- Switzerland
| | - Laurent Vannay
- Laboratory for Computational Molecular Design
- Institute of Chemical Sciences and Engineering
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- CH-1015 Lausanne
- Switzerland
| | - Mario Leclerc
- Department of Chemistry
- Université Laval
- G1K 7P4 Quebec City
- Canada
| | - Clémence Corminboeuf
- Laboratory for Computational Molecular Design
- Institute of Chemical Sciences and Engineering
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- CH-1015 Lausanne
- Switzerland
| | | | - Natalie Banerji
- Department of Chemistry
- University of Fribourg
- CH-1700 Fribourg
- Switzerland
- Department of Chemistry and Biochemistry
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25
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Kłos J, Kim M, Alexander MH, Wang Y. Chemical Control and Spectral Fingerprints of Electronic Coupling in Carbon Nanostructures. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2016; 120:29476-29483. [PMID: 28819465 PMCID: PMC5555747 DOI: 10.1021/acs.jpcc.6b09612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The optical and electronic properties of atomically thin materials such as single-walled carbon nanotubes and graphene are sensitively influenced by substrates, the degree of aggregation, and the chemical environment. However, it has been experimentally challenging to determine the origin and quantify these effects. Here we use time-dependent density-functional-theory calculations to simulate these properties for well-defined molecular systems. We investigate a series of core-shell structures containing C60 enclosed in progressively larger carbon shells and their perhydrogenated or perfluorinated derivatives. Our calculations reveal strong electronic coupling effects that depend sensitively on the interparticle distance and on the surface chemistry. In many of these systems we predict considerable orbital mixing and charge transfer between the C60 core and the enclosing shell. We predict that chemical functionalization of the shell can modulate the electronic coupling to the point where the core and shell are completely decoupled into two electronically independent chemical systems. Additionally, we predict that the C60 core will oscillate within the confining shell, at a frequency directly related to the strength of the electronic coupling. This low-frequency motion should be experimentally detectable in the IR region.
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Affiliation(s)
- Jacek Kłos
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Mijin Kim
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Millard H. Alexander
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
- Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742, United States
| | - YuHuang Wang
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
- Maryland NanoCenter, University of Maryland, College Park, Maryland 20742, United States
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26
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Lee SH, Blake IM, Larsen AG, McDonald JA, Ohkubo K, Fukuzumi S, Reimers JR, Crossley MJ. Synthetically tuneable biomimetic artificial photosynthetic reaction centres that closely resemble the natural system in purple bacteria. Chem Sci 2016; 7:6534-6550. [PMID: 27928494 PMCID: PMC5125414 DOI: 10.1039/c6sc01076h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 06/16/2016] [Indexed: 12/18/2022] Open
Abstract
Porphyrin-based photosynthetic reaction centre (PRC) mimics, ZnPQ-Q2HP-C60 and MP2Q-Q2HP-C60 (M = Zn or 2H), designed to have a similar special-pair electron donor and similar charge-separation distances, redox processes and photochemical reaction rates to those in the natural PRC from purple bacteria, have been synthesised and extensive photochemical studies performed. Mechanisms of electron-transfer reactions are fully investigated using femtosecond and nanosecond transient absorption spectroscopy. In benzonitrile, all models show picosecond-timescale charge-separations and the final singlet charge-separations with the microsecond-timescale. The established lifetimes are long compared to other processes in organic solar cells or other organic light harvesting systems. These rigid, synthetically flexible molecules provide the closest mimics to the natural PRC so far synthesised and present a future direction for the design of light harvesters with controllable absorption, redox, and kinetics properties.
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Affiliation(s)
- Sai-Ho Lee
- School of Chemistry F11 , The University of Sydney , 2006 , NSW , Australia .
| | - Iain M Blake
- School of Chemistry F11 , The University of Sydney , 2006 , NSW , Australia .
| | - Allan G Larsen
- School of Chemistry F11 , The University of Sydney , 2006 , NSW , Australia .
| | - James A McDonald
- School of Chemistry F11 , The University of Sydney , 2006 , NSW , Australia .
| | - Kei Ohkubo
- Department of Material and Life Science , Graduate School of Engineering , Osaka University , Suita , Osaka 565-0871 , Japan .
| | - Shunichi Fukuzumi
- Department of Chemistry and Nano Science , Ewha Womans University , Seoul 120-750 , Korea ; Faculty of Science and Engineering , Meijo University , Nagoya , Aichi 468-0073 , Japan
| | - Jeffrey R Reimers
- School of Chemistry F11 , The University of Sydney , 2006 , NSW , Australia . ; International Centre for Quantum and Molecular Structure , Shanghai University , 200444 , Shanghai , China . ; School of Mathematical and Physical Sciences , The University of Technology Sydney , 2007 , NSW , Australia .
| | - Maxwell J Crossley
- School of Chemistry F11 , The University of Sydney , 2006 , NSW , Australia .
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27
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Burrows HD, Costa T, Ramos ML, Valente AJM, Stewart B, Justino LLG, Almeida AIA, Catarina NL, Mallavia R, Knaapila M. Self-assembled systems of water soluble metal 8-hydroxyquinolates with surfactants and conjugated polyelectrolytes. Phys Chem Chem Phys 2016; 18:16629-40. [PMID: 26817700 DOI: 10.1039/c5cp07085f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We have studied the interaction of 8-hydroxyquinoline-5-sulfonate (8-HQS) with the metal ions Al(iii) and Zn(ii) in aqueous solution in the presence of tetraalkylammonium surfactants using UV/vis absorption, fluorescence, NMR spectroscopy and electrical conductivity measurements, complemented by DFT calculations and molecular dynamics (MD) simulations. Under appropriate conditions, complexes between 8-HQS and metal ions form rapidly, and have similar electronic, spectroscopic and photophysical properties to the corresponding metal quinolates, such as Alq3. These interact with the cationic surfactants, leading to marked increases in fluorescence intensity. However, significant differences are seen in the behavior of the two metal ions. With aluminium, a stable [Al(8-QS)3](3-) anion is formed, and interacts, predominantly through electrostatic interactions, with the surfactant, without disrupting the metal ion coordination sphere. In contrast, with Zn(ii), there is a competition between the metal ion and surfactants in the interaction with 8-HQS, although the [Zn(8-QS)2(H2O)2](2-) species is stable at appropriate pH and surfactant concentration. The studies are extended to systems with the conjugated polyelectrolyte (CPE) poly-(9,9-bis(6-N,N,N-trimethylammonium)hexyl)-fluorene-phenylene bromide (HTMA-PFP), which has a similar alkylammonium chain to the surfactants. Mixing metal salt, 8-HQS and HTMA-PFP in the presence of a nonionic surfactant leads to the formation of a metal complex/CPE supramolecular assembly between the conjugated polyelectrolyte and the metal/8-HQS complex, as demonstrated by electronic energy transfer. The potential of these systems in sensing, light harvesting, and electron injection/transport layers in organic semiconductor devices is discussed.
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Affiliation(s)
- Hugh D Burrows
- Centro de Química, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal.
| | - Telma Costa
- Centro de Química, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal.
| | - M Luisa Ramos
- Centro de Química, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal.
| | - Artur J M Valente
- Centro de Química, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal.
| | - Beverly Stewart
- Centro de Química, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal.
| | - Licinia L G Justino
- Centro de Química, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal.
| | - Aline I A Almeida
- Centro de Química, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal.
| | - Nathanny Lessa Catarina
- Centro de Química, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal.
| | - Ricardo Mallavia
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernandez de Elche, Avda. de la Universidad s/n, 03202 Elche, Spain
| | - Matti Knaapila
- Department of Physics, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
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28
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Huber RC, Ferreira AS, Aguirre JC, Kilbride D, Toso DB, Mayoral K, Zhou ZH, Kopidakis N, Rubin Y, Schwartz BJ, Mason TG, Tolbert SH. Structure and Conductivity of Semiconducting Polymer Hydrogels. J Phys Chem B 2016; 120:6215-24. [DOI: 10.1021/acs.jpcb.6b02202] [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]
Affiliation(s)
- Rachel C. Huber
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - Amy S. Ferreira
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - Jordan C. Aguirre
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - Daniel Kilbride
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - Daniel B. Toso
- Department of Microbiology, Immunology & Molecular Genetics, and Biomedical Engineering Program, UCLA, 609 Charles E. Young Drive South, Los Angeles, California 90095, United States
| | - Kenny Mayoral
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - Z. Hong Zhou
- Department of Microbiology, Immunology & Molecular Genetics, and Biomedical Engineering Program, UCLA, 609 Charles E. Young Drive South, Los Angeles, California 90095, United States
- California NanoSystems
Institute, UCLA, 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Nikos Kopidakis
- Chemical and Nanoscience
Center, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, Colorado 80401, United States
| | - Yves Rubin
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - Benjamin J. Schwartz
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
- California NanoSystems
Institute, UCLA, 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Thomas G. Mason
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - Sarah H. Tolbert
- Department
of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
- California NanoSystems
Institute, UCLA, 570 Westwood Plaza, Los Angeles, California 90095, United States
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29
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Chen M, Zhu H, Zhou S, Xu W, Dong S, Li H, Hao J. Self-Organization and Vesicle Formation of Amphiphilic Fulleromonodendrons Bearing Oligo(poly(ethylene oxide)) Chains. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:2338-47. [PMID: 26898216 DOI: 10.1021/acs.langmuir.6b00321] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
A new series of N-methylfulleropyrrolidines bearing oligo(poly(ethylene oxide))-appended Percec monodendrons (fulleromonodendrons, 4a-f) have been synthesized. The substituted position of the oligo(poly(ethylene oxide)) chain(s) on the phenyl group of the Percec monodendron for 4a-f was varied, which is at the 4-, 2,4-, 3,5-, 3,4,5-, 2,3,4- and 2,4,6- position, respectively. 4a-e are obtained as solids at 25 °C and can self-organize into lamellar phases as revealed by X-ray diffraction (XRD) and small-angle X-ray scattering (SAXS) measurements, while 4f appears as a viscous liquid. The substitution patterns of the oligo(poly(ethylene oxide)) chain(s) also significantly influence the solubility of 4a-f, especially in ethanol and water. Formation of self-organized supramolecular structures of 4d and 4e in water as well as 4d in ethanol is evidenced from UV-vis and dynamic light scattering (DLS) measurements. Further studies in water using various imaging techniques including transmission electron microscopy (TEM), freeze-fracture TEM (FF-TEM), cryo-TEM and atomic force microscopy (AFM) observations revealed the formation of well-defined vesicles for 4d and plate-like aggregates for 4e, indicating that the aggregation behavior of the fulleromonodendrons is highly dependent on their molecular structures. For 4d in ethanol, only irregular aggregates were noticed, indicating the solvent also plays a role on regulating the aggregation behavior. After functionalization with the Percec monodendrons, 4a-f can preserve the intriguing electrochemical properties of pristine C60 as revealed by cyclic voltammetries. The thermotropic properties of 4a-f have also been investigated. It was found that all of them show good thermal stability, but no mesophases were detected within the investigated temperature ranges.
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Affiliation(s)
- Mengjun Chen
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education , Jinan 250100, Shandong, P. R. China
| | - Hongxia Zhu
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education , Jinan 250100, Shandong, P. R. China
| | - Shengju Zhou
- State Key Laboratory of Solid Lubrication & Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences , Lanzhou 730000, Gansu, P. R. China
| | - Wenlong Xu
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education , Jinan 250100, Shandong, P. R. China
| | - Shuli Dong
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education , Jinan 250100, Shandong, P. R. China
| | - Hongguang Li
- State Key Laboratory of Solid Lubrication & Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences , Lanzhou 730000, Gansu, P. R. China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education , Jinan 250100, Shandong, P. R. China
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30
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Carini M, Da Ros T, Prato M, Mateo-Alonso A. Shuttling as a Strategy to Control the Regiochemistry of Bis-Additions on Fullerene Derivatives. Chemphyschem 2016; 17:1823-8. [DOI: 10.1002/cphc.201501174] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Marco Carini
- Department of Chemical and Pharmaceutical Sciences; University di Trieste; Piazzale Europa 1 34127 Trieste Italy
- POLYMAT; University of the Basque Country UPV/EHU; Avenida de Tolosa 72 20018 Donostia-San Sebastián Spain
| | - Tatiana Da Ros
- Department of Chemical and Pharmaceutical Sciences; University di Trieste; Piazzale Europa 1 34127 Trieste Italy
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences; University di Trieste; Piazzale Europa 1 34127 Trieste Italy
- Carbon Nanobiotechnology Laboratory; CIC biomaGUNE; Paseo de Miramón 182 20009 Donostia-San Sebastian Spain
- Ikerbasque; Basque Foundation for Science; 48011 Bilbao Spain
| | - Aurelio Mateo-Alonso
- POLYMAT; University of the Basque Country UPV/EHU; Avenida de Tolosa 72 20018 Donostia-San Sebastián Spain
- Ikerbasque; Basque Foundation for Science; 48011 Bilbao Spain
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31
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Wang H, Wu J, Gong K, Hao Q, Wang X, Jiang J, Li Z, Lai G. Design of a nanoporous interfacial SiO2layer in polysiloxane–graphene oxide nanocomposites for efficient stress transmission. RSC Adv 2016. [DOI: 10.1039/c6ra10745a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The formation process of nanoporous surface of GEOS (left), the enhanced mechanical performance for PDMS-OH (right). Nanoporous interfacial layer SiO2is an important contributing factor for enhanced stress transmission between GEO and polysiloxane.
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Affiliation(s)
- Hualan Wang
- Key Laboratory of Organosilicon Chemistry and Material Technology
- Ministry of Education
- Hangzhou Normal University
- Hangzhou
- China
| | - Jirong Wu
- Key Laboratory of Organosilicon Chemistry and Material Technology
- Ministry of Education
- Hangzhou Normal University
- Hangzhou
- China
| | - Kai Gong
- School of Pharmaceutical Science
- Jiangnan University
- Wuxi
- China
| | - Qingli Hao
- Key Laboratory of Soft Chemistry and Functional Materials
- Ministry of Education
- Nanjing University of Science and Technology
- Nanjing
- China
| | - Xin Wang
- Key Laboratory of Soft Chemistry and Functional Materials
- Ministry of Education
- Nanjing University of Science and Technology
- Nanjing
- China
| | - Jianxiong Jiang
- Key Laboratory of Organosilicon Chemistry and Material Technology
- Ministry of Education
- Hangzhou Normal University
- Hangzhou
- China
| | - Zhifang Li
- Key Laboratory of Organosilicon Chemistry and Material Technology
- Ministry of Education
- Hangzhou Normal University
- Hangzhou
- China
| | - Guoqiao Lai
- Key Laboratory of Organosilicon Chemistry and Material Technology
- Ministry of Education
- Hangzhou Normal University
- Hangzhou
- China
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32
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Yu Q, Ding Y, Cao H, Lu X, Cai Y. Use of Polyion Complexation for Polymerization-Induced Self-Assembly in Water under Visible Light Irradiation at 25 °C. ACS Macro Lett 2015; 4:1293-1296. [PMID: 35614831 DOI: 10.1021/acsmacrolett.5b00699] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Polyion complexation (PIC) as the driving force of polymerization-induced self-assembly (PISA), that is, PIC-PISA, is explored. Reversible addition-fragmentation chain transfer (RAFT) dispersion polymerization of NH3+-monomer 2-aminoethylacrylamide hydrochloride (AEAM) can be achieved in water under visible light irradiation at 25 °C, using nonionic poly2-hydroxypropylmethacrylamide (PHPMA) macromolecular chain transfer agent in the presence of anionic poly(sodium 2-acrylamido-2-methylpropanesulfonate) (PAMPS) PIC-template. Sphere-to-network transition occurs, owing to the PIC of PAMPS with growing chains upon reaction close to isoelectric point (IEP); thereafter, the increase of electrostatic repulsion promotes the split of networks and the rupture of spheres into fragments. Therefore, the free-flowing solution becomes viscous liquid and free-standing physical gel, and then back into viscous and free-flowing liquid. Such a PIC-PISA is appealing for gene delivery because the size and surface charge are variable on demand and at high solids.
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Affiliation(s)
- Qiuping Yu
- Jiangsu
Key Laboratory of
Advanced Functional Polymer Design and Application, Suzhou Key Laboratory
of Macromolecular Design and Precision Synthesis, the College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Yi Ding
- Jiangsu
Key Laboratory of
Advanced Functional Polymer Design and Application, Suzhou Key Laboratory
of Macromolecular Design and Precision Synthesis, the College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Hui Cao
- Jiangsu
Key Laboratory of
Advanced Functional Polymer Design and Application, Suzhou Key Laboratory
of Macromolecular Design and Precision Synthesis, the College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Xinhua Lu
- Jiangsu
Key Laboratory of
Advanced Functional Polymer Design and Application, Suzhou Key Laboratory
of Macromolecular Design and Precision Synthesis, the College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Yuanli Cai
- Jiangsu
Key Laboratory of
Advanced Functional Polymer Design and Application, Suzhou Key Laboratory
of Macromolecular Design and Precision Synthesis, the College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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33
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Costa T, de Azevedo D, Stewart B, Knaapila M, Valente AJM, Kraft M, Scherf U, Burrows HD. Interactions of a zwitterionic thiophene-based conjugated polymer with surfactants. Polym Chem 2015. [DOI: 10.1039/c5py01210d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Structural organization and photoluminescence properties of zwitterionic conjugated polymer–surfactant assemblies depend on specific and non-specific polymer–surfactant interactions within the aggregate.
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Affiliation(s)
- Telma Costa
- Centro de Química de Coimbra, Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade de Coimbra
- 3004-535 Coimbra
- Portugal
| | - Diego de Azevedo
- Centro de Química de Coimbra, Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade de Coimbra
- 3004-535 Coimbra
- Portugal
| | - Beverly Stewart
- Centro de Química de Coimbra, Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade de Coimbra
- 3004-535 Coimbra
- Portugal
| | - Matti Knaapila
- Department of Physics
- Technical University of Denmark
- 2800 Kgs. Lyngby
- Denmark
| | - Artur J. M. Valente
- Centro de Química de Coimbra, Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade de Coimbra
- 3004-535 Coimbra
- Portugal
| | - Mario Kraft
- Macromolecular Chemistry Group
- Bergische Universität Wuppertal
- D-42119 Wuppertal
- Germany
| | - Ullrich Scherf
- Macromolecular Chemistry Group
- Bergische Universität Wuppertal
- D-42119 Wuppertal
- Germany
| | - Hugh D. Burrows
- Centro de Química de Coimbra, Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade de Coimbra
- 3004-535 Coimbra
- Portugal
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