1
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Gharbi AM, Biswas DS, Crégut O, Malý P, Didier P, Klymchenko A, Léonard J. Exciton annihilation and diffusion length in disordered multichromophoric nanoparticles. NANOSCALE 2024; 16:11550-11563. [PMID: 38868990 DOI: 10.1039/d4nr00325j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
Efficient exciton transport is the essential property of natural and synthetic light-harvesting (LH) devices. Here we investigate exciton transport properties in LH organic polymer nanoparticles (ONPs) of 40 nm diameter. The ONPs are loaded with a rhodamine B dye derivative and bulky counterion, enabling dye loadings as high as 0.3 M, while preserving fluorescence quantum yields larger than 30%. We use time-resolved fluorescence spectroscopy to monitor exciton-exciton annihilation (EEA) kinetics within the ONPs dispersed in water. We demonstrate that unlike the common practice for photoluminescence investigations of EEA, the non-uniform intensity profile of the excitation light pulse must be taken into account to analyse reliably intensity-dependent population dynamics. Alternatively, a simple confocal detection scheme is demonstrated, which enables (i) retrieving the correct value for the bimolecular EEA rate which would otherwise be underestimated by a typical factor of three, and (ii) revealing minor EEA by-products otherwise unnoticed. Considering the ONPs as homogeneous rigid solutions of weakly interacting dyes, we postulate an incoherent exciton hoping mechanism to infer a diffusion constant exceeding 0.003 cm2 s-1 and a diffusion length as large as 70 nm. This work demonstrates the success of the present ONP design strategy at engineering efficient exciton transport in disordered multichromophoric systems.
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Affiliation(s)
| | | | - Olivier Crégut
- IPCMS, Université de Strasbourg - CNRS, Strasbourg, France.
| | - Pavel Malý
- Charles University, Prague, Czech Republic
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2
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Hedley GJ, Schröder T, Steiner F, Eder T, Hofmann FJ, Bange S, Laux D, Höger S, Tinnefeld P, Lupton JM, Vogelsang J. Picosecond time-resolved photon antibunching measures nanoscale exciton motion and the true number of chromophores. Nat Commun 2021; 12:1327. [PMID: 33637741 PMCID: PMC7910429 DOI: 10.1038/s41467-021-21474-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 01/27/2021] [Indexed: 11/27/2022] Open
Abstract
The particle-like nature of light becomes evident in the photon statistics of fluorescence from single quantum systems as photon antibunching. In multichromophoric systems, exciton diffusion and subsequent annihilation occurs. These processes also yield photon antibunching but cannot be interpreted reliably. Here we develop picosecond time-resolved antibunching to identify and decode such processes. We use this method to measure the true number of chromophores on well-defined multichromophoric DNA-origami structures, and precisely determine the distance-dependent rates of annihilation between excitons. Further, this allows us to measure exciton diffusion in mesoscopic H- and J-type conjugated-polymer aggregates. We distinguish between one-dimensional intra-chain and three-dimensional inter-chain exciton diffusion at different times after excitation and determine the disorder-dependent diffusion lengths. Our method provides a powerful lens through which excitons can be studied at the single-particle level, enabling the rational design of improved excitonic probes such as ultra-bright fluorescent nanoparticles and materials for optoelectronic devices.
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Affiliation(s)
| | - Tim Schröder
- Department Chemie and Center for NanoScience (CeNS), Ludwig-Maximilians-Universität München, München, Germany
| | - Florian Steiner
- Department Chemie and Center for NanoScience (CeNS), Ludwig-Maximilians-Universität München, München, Germany
| | - Theresa Eder
- Institut für Experimentelle und Angewandte Physik and Regensburg Center for Ultrafast Nanoscopy (RUN), Universität Regensburg, Regensburg, Germany
| | - Felix J Hofmann
- Institut für Experimentelle und Angewandte Physik and Regensburg Center for Ultrafast Nanoscopy (RUN), Universität Regensburg, Regensburg, Germany
| | - Sebastian Bange
- Institut für Experimentelle und Angewandte Physik and Regensburg Center for Ultrafast Nanoscopy (RUN), Universität Regensburg, Regensburg, Germany
| | - Dirk Laux
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Bonn, Germany
| | - Sigurd Höger
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Bonn, Germany
| | - Philip Tinnefeld
- Department Chemie and Center for NanoScience (CeNS), Ludwig-Maximilians-Universität München, München, Germany
| | - John M Lupton
- Institut für Experimentelle und Angewandte Physik and Regensburg Center for Ultrafast Nanoscopy (RUN), Universität Regensburg, Regensburg, Germany
| | - Jan Vogelsang
- Institut für Experimentelle und Angewandte Physik and Regensburg Center for Ultrafast Nanoscopy (RUN), Universität Regensburg, Regensburg, Germany.
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3
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Chandrabose S, Chen K, Barker AJ, Sutton JJ, Prasad SKK, Zhu J, Zhou J, Gordon KC, Xie Z, Zhan X, Hodgkiss JM. High Exciton Diffusion Coefficients in Fused Ring Electron Acceptor Films. J Am Chem Soc 2019; 141:6922-6929. [DOI: 10.1021/jacs.8b12982] [Citation(s) in RCA: 115] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Sreelakshmi Chandrabose
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6010, New Zealand
- School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington 6010, New Zealand
| | - Kai Chen
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6010, New Zealand
- School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington 6010, New Zealand
| | - Alex J. Barker
- Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, Milan 20133, Italy
| | - Joshua J. Sutton
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6010, New Zealand
- Department of Chemistry, University of Otago, Dunedin 9001, New Zealand
| | - Shyamal K. K. Prasad
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6010, New Zealand
- School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington 6010, New Zealand
| | - Jingshuai Zhu
- Department of Materials Science and Engineering, College of Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Peking University, Beijing 100871, China
| | - Jiadong Zhou
- Institute of Polymer Optoelectronic Materials and Devices, Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Keith C. Gordon
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6010, New Zealand
- Department of Chemistry, University of Otago, Dunedin 9001, New Zealand
| | - Zengqi Xie
- Institute of Polymer Optoelectronic Materials and Devices, Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Xiaowei Zhan
- Department of Materials Science and Engineering, College of Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Peking University, Beijing 100871, China
| | - Justin M. Hodgkiss
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6010, New Zealand
- School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington 6010, New Zealand
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4
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Rana D, Donfack P, Jovanov V, Wagner V, Materny A. Ultrafast polaron-pair dynamics in a poly(3-hexylthiophene-2,5-diyl) device influenced by a static electric field: insights into electric-field-related charge loss. Phys Chem Chem Phys 2019; 21:21236-21248. [DOI: 10.1039/c9cp03736e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Photogenerated polaron-pair ultrafast dynamics in poly(3-hexylthiophene)-based devices are found to be influenced by external electric fields via delayed field-induced singlet exciton dissociation, yielding a bimolecular decay contribution.
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Affiliation(s)
- Debkumar Rana
- Physics and Earth Sciences, Jacobs University Bremen
- 28759 Bremen
- Germany
| | - Patrice Donfack
- Physics and Earth Sciences, Jacobs University Bremen
- 28759 Bremen
- Germany
| | - Vladislav Jovanov
- Physics and Earth Sciences, Jacobs University Bremen
- 28759 Bremen
- Germany
| | - Veit Wagner
- Physics and Earth Sciences, Jacobs University Bremen
- 28759 Bremen
- Germany
| | - Arnulf Materny
- Physics and Earth Sciences, Jacobs University Bremen
- 28759 Bremen
- Germany
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5
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Peteanu LA, Chowdhury S, Wildeman J, Sfeir MY. Exciton–Exciton Annihilation as a Probe of Interchain Interactions in PPV–Oligomer Aggregates. J Phys Chem B 2017; 121:1707-1714. [DOI: 10.1021/acs.jpcb.6b11250] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Linda A. Peteanu
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Sanchari Chowdhury
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Jurjen Wildeman
- Zernike Institute of Advanced Materials, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Matthew Y. Sfeir
- Center
for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
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6
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Roy P, Jha A, Dasgupta J. Photoinduced charge generation rates in soluble P3HT : PCBM nano-aggregates predict the solvent-dependent film morphology. NANOSCALE 2016; 8:2768-2777. [PMID: 26763690 DOI: 10.1039/c5nr06445g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The device efficiency of bulk heterojunction (BHJ) solar cells is critically dependent on the nano-morphology of the solution-processed polymer : fullerene blend. Active control on blend morphology can only emanate from a detailed understanding of solution structures during the film casting process. Here we use photoinduced charge transfer (CT) rates to probe the effective length scale of the pre-formed solution structures and their energy disorder arising from a mixture of poly(3-hexylthiophene-2,5-diyl) (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) in three different organic solvents. The observed solvent-dependent ultrafast biphasic rise of the transient polaron state in solution along with changes detected in the C=C stretching frequency of bound PCBM provides direct evidence for film-like P3HT : PCBM interfaces in solution. Using the diffusive component of the charge transfer rate, we deduce ∼3-times larger functional nano-domain size in toluene than in chlorobenzene thereby correctly predicting the relative polymer nanofiber widths observed in annealed films. We thus provide first experimental evidence for the postulated polymer : fullerene : solvent ternary phase that seeds the eventual morphology in spin-cast films. Our work motivates the design of new chemical additives to tune the grain size of the evolving polymer : fullerene domains within the solution phase.
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Affiliation(s)
- Palas Roy
- Department of Chemical Sciences, 1 Homi Bhabha Road, Tata Institute of Fundamental Research, Mumbai 400005, India.
| | - Ajay Jha
- Department of Chemical Sciences, 1 Homi Bhabha Road, Tata Institute of Fundamental Research, Mumbai 400005, India.
| | - Jyotishman Dasgupta
- Department of Chemical Sciences, 1 Homi Bhabha Road, Tata Institute of Fundamental Research, Mumbai 400005, India.
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7
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Guzelturk B, Demir HV. Organic-Inorganic Composites of Semiconductor Nanocrystals for Efficient Excitonics. J Phys Chem Lett 2015; 6:2206-2215. [PMID: 26266593 DOI: 10.1021/acs.jpclett.5b00415] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Nanocomposites of colloidal semiconductor nanocrystals integrated into conjugated polymers are the key to soft-material hybrid optoelectronics, combining advantages of both plastics and particles. Synergic combination of the favorable properties in the hybrids of colloidal nanocrystals and conjugated polymers offers enhanced performance and new functionalities in light-generation and light-harvesting applications, where controlling and mastering the excitonic interactions at the nanoscale are essential. In this Perspective, we highlight and critically consider the excitonic interactions in the organic-inorganic nanocomposites to achieve highly efficient exciton transfer through rational design of the nanocomposites. The use of strong excitonic interactions in optoelectronic devices can trigger efficiency breakthroughs in hybrid optoelectronics.
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Affiliation(s)
- Burak Guzelturk
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
- LUMINOUS! Center of Excellence for Semiconductor Lighting and Displays, TPI - The Photonics Institute, School of Electrical and Electronic Engineering, School of Physical and Materials Sciences, Nanyang Technological University, Singapore 639798, Singapore
| | - Hilmi Volkan Demir
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
- LUMINOUS! Center of Excellence for Semiconductor Lighting and Displays, TPI - The Photonics Institute, School of Electrical and Electronic Engineering, School of Physical and Materials Sciences, Nanyang Technological University, Singapore 639798, Singapore
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8
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Meng R, Gao K, Zhang G, Han S, Yang F, Li Y, Xie S. Exciton intrachain transport induced by interchain packing configurations in conjugated polymers. Phys Chem Chem Phys 2015; 17:18600-5. [DOI: 10.1039/c5cp01689d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Exciton intrachain transport in polymers induced by the driving force resulting from the gradient of exciton creation energy along chains.
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Affiliation(s)
- Ruixuan Meng
- School of Physics
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan
- P. R. China
| | - Kun Gao
- School of Physics
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan
- P. R. China
| | - Gaiyan Zhang
- School of Physics
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan
- P. R. China
| | - Shixuan Han
- School of Physics
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan
- P. R. China
| | - Fujiang Yang
- School of Physics
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan
- P. R. China
| | - Yuan Li
- School of Physics
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan
- P. R. China
| | - Shijie Xie
- School of Physics
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan
- P. R. China
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9
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Guzelturk B, Hernandez-Martinez PL, Sharma VK, Coskun Y, Ibrahimova V, Tuncel D, Govorov AO, Sun XW, Xiong Q, Demir HV. Study of exciton transfer in dense quantum dot nanocomposites. NANOSCALE 2014; 6:11387-94. [PMID: 25144691 DOI: 10.1039/c4nr03456b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Nanocomposites of colloidal quantum dots (QDs) integrated into conjugated polymers (CPs) are key to hybrid optoelectronics, where engineering the excitonic interactions at the nanoscale is crucial. For such excitonic operation, it was believed that exciton diffusion is essential to realize nonradiative energy transfer from CPs to QDs. In this study, contrary to the previous literature, efficient exciton transfer is demonstrated in the nanocomposites of dense QDs, where exciton transfer can be as efficient as 80% without requiring the assistance of exciton diffusion. This is enabled by uniform dispersion of QDs at high density (up to ∼70 wt%) in the nanocomposite while avoiding phase segregation. Theoretical modeling supports the experimental observation of weakly temperature dependent nonradiative energy transfer dynamics. This new finding provides the ability to design hybrid light-emitting diodes that show an order of magnitude enhanced external quantum efficiencies.
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Affiliation(s)
- Burak Guzelturk
- Department of Electrical and Electronics Engineering, Department of Physics, Department of Chemistry, and UNAM-National Nanotechnology Research Center, Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, TR-06800, Turkey.
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10
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Pietsch C, Schäfer J, Menzel R, Beckert R, Popp J, Dietzek B, Schubert US. Förster resonance energy transfer in poly(methyl methacrylates) copolymers bearing donor-acceptor 1,3-thiazole dyes. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26898] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Christian Pietsch
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University; Jena Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
| | - Johann Schäfer
- Institute of Photonic Technology Jena e.V.; Albert-Einstein-Str. 9 07745 Jena Germany
- Institute of Physical Chemistry (IPC) and Abbe Center of Photonics (ACP); Friedrich Schiller University Jena; Helmholtzweg 4 07743 Jena Germany
| | - Roberto Menzel
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University; Jena Humboldtstr. 10 07743 Jena Germany
| | - Rainer Beckert
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University; Jena Humboldtstr. 10 07743 Jena Germany
| | - Jürgen Popp
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
- Institute of Photonic Technology Jena e.V.; Albert-Einstein-Str. 9 07745 Jena Germany
- Institute of Physical Chemistry (IPC) and Abbe Center of Photonics (ACP); Friedrich Schiller University Jena; Helmholtzweg 4 07743 Jena Germany
| | - Benjamin Dietzek
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
- Institute of Photonic Technology Jena e.V.; Albert-Einstein-Str. 9 07745 Jena Germany
- Institute of Physical Chemistry (IPC) and Abbe Center of Photonics (ACP); Friedrich Schiller University Jena; Helmholtzweg 4 07743 Jena Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University; Jena Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
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11
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Schäfer J, Breul A, Birckner E, Hager MD, Schubert US, Popp J, Dietzek B. Fluorescence Study of Energy Transfer in PMMA Polymers with Pendant Oligo-Phenylene-Ethynylenes. Chemphyschem 2012; 14:170-8. [DOI: 10.1002/cphc.201200545] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Indexed: 11/08/2022]
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12
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Exciton diffusion, annihilation and their role in the charge carrier generation in fluorene based copolymers. Chem Phys 2012. [DOI: 10.1016/j.chemphys.2012.02.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Roland T, Léonard J, Hernandez Ramirez G, Méry S, Yurchenko O, Ludwigs S, Haacke S. Sub-100 fs charge transfer in a novel donor–acceptor–donor triad organized in a smectic film. Phys Chem Chem Phys 2012; 14:273-9. [DOI: 10.1039/c1cp22122a] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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14
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Happ B, Schäfer J, Menzel R, Hager MD, Winter A, Popp J, Beckert R, Dietzek B, Schubert US. Synthesis and Resonance Energy Transfer Study on a Random Terpolymer Containing a 2-(Pyridine-2-yl)thiazole Donor-Type Ligand and a Luminescent [Ru(bpy)2(2-(triazol-4-yl)pyridine)]2+ Chromophore. Macromolecules 2011. [DOI: 10.1021/ma201193e] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Bobby Happ
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-Universität Jena, Humboldtstrasse 10, 07743 Jena, Germany
| | - Johann Schäfer
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-Universität Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Institute for Photonic Technology Jena (IPhT), Albert-Einstein-Strasse 9, 07745 Jena, Germany
| | - Roberto Menzel
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-Universität Jena, Humboldtstrasse 10, 07743 Jena, Germany
| | - Martin D. Hager
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-Universität Jena, Humboldtstrasse 10, 07743 Jena, Germany
| | - Andreas Winter
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-Universität Jena, Humboldtstrasse 10, 07743 Jena, Germany
| | - Jürgen Popp
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-Universität Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Institute for Photonic Technology Jena (IPhT), Albert-Einstein-Strasse 9, 07745 Jena, Germany
- Institute for Physical Chemistry, Friedrich-Schiller-University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Rainer Beckert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-Universität Jena, Humboldtstrasse 10, 07743 Jena, Germany
| | - Benjamin Dietzek
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-Universität Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Institute for Photonic Technology Jena (IPhT), Albert-Einstein-Strasse 9, 07745 Jena, Germany
- Institute for Physical Chemistry, Friedrich-Schiller-University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-Universität Jena, Humboldtstrasse 10, 07743 Jena, Germany
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15
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Marciniak H, Li XQ, Würthner F, Lochbrunner S. One-Dimensional Exciton Diffusion in Perylene Bisimide Aggregates. J Phys Chem A 2010; 115:648-54. [DOI: 10.1021/jp107407p] [Citation(s) in RCA: 137] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Henning Marciniak
- Institut für Physik, Universität Rostock, Universitätsplatz 3, 18055 Rostock, Germany
| | - Xue-Qing Li
- Institut für Organische Chemie and Röntgen Research Center for Complex Material Systems, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Frank Würthner
- Institut für Organische Chemie and Röntgen Research Center for Complex Material Systems, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Stefan Lochbrunner
- Institut für Physik, Universität Rostock, Universitätsplatz 3, 18055 Rostock, Germany
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16
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High photoluminescence quantum yield due to intramolecular energy transfer in the Super Yellow conjugated copolymer. Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.03.030] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Howard IA, Hodgkiss JM, Zhang X, Kirov KR, Bronstein HA, Williams CK, Friend RH, Westenhoff S, Greenham NC. Charge Recombination and Exciton Annihilation Reactions in Conjugated Polymer Blends. J Am Chem Soc 2009; 132:328-35. [DOI: 10.1021/ja908046h] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ian A. Howard
- Cavendish Laboratory, J. J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom, Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom, and Department of Chemistry, Biochemistry & Biophysics, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden
| | - Justin M. Hodgkiss
- Cavendish Laboratory, J. J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom, Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom, and Department of Chemistry, Biochemistry & Biophysics, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden
| | - Xinping Zhang
- Cavendish Laboratory, J. J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom, Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom, and Department of Chemistry, Biochemistry & Biophysics, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden
| | - Kiril R. Kirov
- Cavendish Laboratory, J. J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom, Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom, and Department of Chemistry, Biochemistry & Biophysics, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden
| | - Hugo A. Bronstein
- Cavendish Laboratory, J. J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom, Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom, and Department of Chemistry, Biochemistry & Biophysics, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden
| | - Charlotte K. Williams
- Cavendish Laboratory, J. J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom, Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom, and Department of Chemistry, Biochemistry & Biophysics, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden
| | - Richard H. Friend
- Cavendish Laboratory, J. J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom, Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom, and Department of Chemistry, Biochemistry & Biophysics, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden
| | - Sebastian Westenhoff
- Cavendish Laboratory, J. J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom, Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom, and Department of Chemistry, Biochemistry & Biophysics, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden
| | - Neil C. Greenham
- Cavendish Laboratory, J. J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom, Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom, and Department of Chemistry, Biochemistry & Biophysics, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden
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Dias FB, Kamtekar KT, Cazati T, Williams G, Bryce MR, Monkman AP. Exciton Diffusion in Polyfluorene Copolymer Thin Films: Kinetics, Energy Disorder and Thermally Assisted Hopping. Chemphyschem 2009; 10:2096-104. [DOI: 10.1002/cphc.200900112] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Minevičiūtė I, Gulbinas V, Franckevičius M, Vaišnoras R, Marcos M, Serrano J. Exciton migration and quenching in poly(propylene imine) dendrimers. Chem Phys 2009. [DOI: 10.1016/j.chemphys.2009.03.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Collini E, Scholes GD. Electronic and Vibrational Coherences in Resonance Energy Transfer along MEH-PPV Chains at Room Temperature. J Phys Chem A 2009; 113:4223-41. [DOI: 10.1021/jp810757x] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Elisabetta Collini
- Lash-Miller Chemical Laboratories, Institute for Optical Sciences and Centre for Quantum Information and Quantum Control, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Gregory D. Scholes
- Lash-Miller Chemical Laboratories, Institute for Optical Sciences and Centre for Quantum Information and Quantum Control, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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Sakamoto A, Nakamura O, Tasumi M. Picosecond Time-Resolved Polarized Infrared Spectroscopic Study of Photoexcited States and Their Dynamics in Oriented Poly(p-phenylenevinylene). J Phys Chem B 2008; 112:16437-44. [DOI: 10.1021/jp709641b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Akira Sakamoto
- Materials Science Division, Graduate School of Science and Engineering, Saitama University, Shimo-okubo 255, Sakura-ku, Saitama 338-8570, Japan
| | - Osamu Nakamura
- Materials Science Division, Graduate School of Science and Engineering, Saitama University, Shimo-okubo 255, Sakura-ku, Saitama 338-8570, Japan
| | - Mitsuo Tasumi
- Materials Science Division, Graduate School of Science and Engineering, Saitama University, Shimo-okubo 255, Sakura-ku, Saitama 338-8570, Japan
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Walter MJ, Borys NJ, van Schooten KJ, Lupton JM. Light-harvesting action spectroscopy of single conjugated polymer nanowires. NANO LETTERS 2008; 8:3330-3335. [PMID: 18783280 DOI: 10.1021/nl801757p] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We study exciton migration in single molecular nanowires, dye-endcapped multichromophoric conjugated polymers, as a function of excitation energy. This approach reveals the actual molecular absorption properties, uncovering the molecules within an ensemble and the chromophores within a molecule which contribute to absorption at a given wavelength. As the excitation energy is raised, an increasing number of polymers exhibit energy transfer suggesting that, in contrast to the emission spectrum, the absorption of a single chain under energy transfer conditions can be very broad even at 5 K. At the same time, the polarization anisotropy in excitation decreases due to an increase in the number of noncolinear chromophores involved in absorption. Power and wavelength-dependent measurements clearly discern the exciton blockade effect that gives rise to strong fluctuations of energy transfer. Although the polymer and endcap constitute nominally discrete spectroscopic entities, we are able to identify a subtle influence of the primary backbone exciton energy on the ultimate endcap emission. This demonstration of interchromophoric cooperativity provides a direct realization of how nonradiative energy dissipation in one nanoscale unit influences the spectroscopy of another.
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Affiliation(s)
- Manfred J Walter
- Department of Physics, University of Utah, Salt Lake City, Utah 84112, USA
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