1
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Cardoso S, Berberan-Santos MN. Reversible Electronic Energy Transfer (Homo-FRET) in Cyclic Molecular and Supramolecular Systems: Fluorescence Anisotropy Decays for the Isotropic Interaction. J Phys Chem A 2021; 125:8476-8481. [PMID: 34286990 DOI: 10.1021/acs.jpca.1c04975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reversible electronic energy transfer (homo-FRET) in cyclic multichromophoric systems is studied for sets of n identical fluorophores arranged in regular polygons (triangle, square, pentagon, etc.). A general analytic expression for the anisotropy decay is obtained for a regular polygon of any order, under the assumptions of isotropic interaction and nearest-neighbor FRET. A graphical way of connecting the decay form and polygon geometry based on the Frost circle is also presented. The consequences of the relaxation of these assumptions on the anisotropy decay are also discussed and analyzed in detail for the heptagon.
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Affiliation(s)
- Sofia Cardoso
- Physics Department, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - Mario N Berberan-Santos
- iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal.,Associate Laboratory i4HB-Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
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2
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3
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The effect of protonation on the excited state dynamics of pyrimidine chromophores. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112398] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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4
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Kournoutas F, Fihey A, Malval JP, Spangenberg A, Fecková M, le Poul P, Katan C, Robin-le Guen F, Bureš F, Achelle S, Fakis M. Branching effect on the linear and nonlinear optical properties of styrylpyrimidines. Phys Chem Chem Phys 2020; 22:4165-4176. [DOI: 10.1039/c9cp06476a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The branching effect on the photophysical properties of styrylpyrimidines is studied experimentally and theoretically.
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Affiliation(s)
| | - Arnaud Fihey
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F 35000 Rennes
- France
| | - Jean-Pierre Malval
- Institut de Science des Matériaux de Mulhouse CNRS-UMR 7361
- Université de Haute Alsace
- Mulhouse
- France
| | - Arnaud Spangenberg
- Institut de Science des Matériaux de Mulhouse CNRS-UMR 7361
- Université de Haute Alsace
- Mulhouse
- France
| | - Michaela Fecková
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F 35000 Rennes
- France
| | - Pascal le Poul
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F 35000 Rennes
- France
| | - Claudine Katan
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F 35000 Rennes
- France
| | - Françoise Robin-le Guen
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F 35000 Rennes
- France
| | - Filip Bureš
- Institute of Organic Chemistry and Technology
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice 53210
- Czech Republic
| | - Sylvain Achelle
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F 35000 Rennes
- France
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5
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Kournoutas F, Seintis K, Karakostas N, Tydlitát J, Achelle S, Pistolis G, Bureš F, Fakis M. Photophysical and Protonation Time Resolved Studies of Donor–Acceptor Branched Systems With Pyridine Acceptors. J Phys Chem A 2018; 123:417-428. [DOI: 10.1021/acs.jpca.8b08628] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Fotis Kournoutas
- Department of Physics, University of Patras, Greece, GR-26504 Patras, Greece
| | - Kostas Seintis
- Department of Physics, University of Patras, Greece, GR-26504 Patras, Greece
| | - Nikolaos Karakostas
- NCSR “Demokritos” Institute of Nanosciences and Nanotechnology (INN), 153 10 Athens, Greece
| | - Jiří Tydlitát
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice 532 10, Czech Republic
| | - Sylvain Achelle
- University of Rennes CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
| | - George Pistolis
- NCSR “Demokritos” Institute of Nanosciences and Nanotechnology (INN), 153 10 Athens, Greece
| | - Filip Bureš
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice 532 10, Czech Republic
| | - Mihalis Fakis
- Department of Physics, University of Patras, Greece, GR-26504 Patras, Greece
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6
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Renger T, Dankl M, Klinger A, Schlücker T, Langhals H, Müh F. Structure-Based Theory of Fluctuation-Induced Energy Transfer in a Molecular Dyad. J Phys Chem Lett 2018; 9:5940-5947. [PMID: 30247921 DOI: 10.1021/acs.jpclett.8b02403] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We present a microscopic theory for the description of fluctuation-induced excitation energy transfer in chromophore dimers to explain experimental data on a perylene biscarboximide dyad with orthogonal transition dipole moments. Our non-Condon extension of Förster theory takes into account the fluctuations of excitonic couplings linear and quadratic in the normal coordinates, treated microscopically by quantum chemical/electrostatic calculations. The modulation of the optical transition energies of the chromophores is inferred from optical spectra of the isolated chromophores. The application of the theory to the considered dyad reveals a two to three order of magnitude increase in the rate constant by non-Condon effects. These effects are found to be dominated by fluctuations linear in the normal coordinates and provide a structure-based qualitative interpretation of the experimental time constant for energy transfer as well as its dependence on temperature.
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Affiliation(s)
- Thomas Renger
- Institute of Theoretical Physics, Department of Theoretical Biophysics , Johannes Kepler University Linz , Altenberger Str. 69 , 4040 Linz , Austria
| | - Mathias Dankl
- Institute of Theoretical Physics, Department of Theoretical Biophysics , Johannes Kepler University Linz , Altenberger Str. 69 , 4040 Linz , Austria
| | - Alexander Klinger
- Institute of Theoretical Physics, Department of Theoretical Biophysics , Johannes Kepler University Linz , Altenberger Str. 69 , 4040 Linz , Austria
| | - Thorben Schlücker
- Department of Chemistry , LMU University of Munich , Butenandtstr. 13 , D-81377 Munich , Germany
| | - Heinz Langhals
- Department of Chemistry , LMU University of Munich , Butenandtstr. 13 , D-81377 Munich , Germany
| | - Frank Müh
- Institute of Theoretical Physics, Department of Theoretical Biophysics , Johannes Kepler University Linz , Altenberger Str. 69 , 4040 Linz , Austria
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7
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Fakis M, Beckwith JS, Seintis K, Martinou E, Nançoz C, Karakostas N, Petsalakis I, Pistolis G, Vauthey E. Energy transfer and charge separation dynamics in photoexcited pyrene-bodipy molecular dyads. Phys Chem Chem Phys 2018; 20:837-849. [PMID: 29230451 DOI: 10.1039/c7cp06914f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The photophysical properties of two pyrene-bodipy molecular dyads, composed of a phenyl-pyrene (Py-Ph) linked to the meso position of a bodipy (BD) molecule with either H-atoms (BD1) or ethyl groups (BD2) at the 2,6 positions, are investigated by stationary, nanosecond and femtosecond spectroscopy. The properties of these dyads (Py-Ph-BD1 and Py-Ph-BD2) are compared to those of their constituent chromophores in two solvents namely 1,2-dichloroethane (DCE) and acetonitrile (ACN). Stationary spectroscopy reveals a weak coupling among the subunits in both dyads. Excitation of the pyrene (Py) subunit leads to emission that is totally governed by the BD subunits in both dyads pointing to excitation energy transfer (EET) from the Py to BD chromophore. Femtosecond fluorescence and transient absorption spectroscopy reveal that EET takes place within 0.3-0.5 ps and is mostly independent of the solvent and the type of the BD subunit. The EET lifetime is in reasonable agreement with that predicted by Förster theory. After EET has taken place, Py-Ph-BD1 in DCE and Py-Ph-BD2 in both solvents decay mainly radiatively to the ground state with 3.5-5.0 ns lifetimes which are similar to those of the individual BD chromophores. However, the excited state of Py-Ph-BD1 in ACN is quenched having a lifetime of 1 ns. This points to the opening of an additional non-radiative channel of the excited state of Py-Ph-BD1 in this solvent, most probably charge separation (CS). Target analysis of the TA spectra has shown that the CS follows inverted kinetics and is substantially slower than the recombination of the charge-separated state. Occurrence of CS with Py-Ph-BD1 in ACN is also supported by energetic considerations. The above results indicate that only a small change in the structure of the BD units incorporated in the dyads significantly affects the excited state dynamics leading either to a dyad with long lifetime and high fluorescence quantum yield or to a dyad with ability to undergo CS.
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Affiliation(s)
- M Fakis
- Department of Physics, University of Patras, GR-26504, Patras, Greece.
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8
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Reddy G, Duvva N, Seetharaman S, D’Souza F, Giribabu L. Photoinduced energy transfer in carbazole–BODIPY dyads. Phys Chem Chem Phys 2018; 20:27418-27428. [DOI: 10.1039/c8cp05509b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A series of carbazole (CBZ)–boron dipyrromethene (BODIPY) based donor–acceptor dyads, CB1, CB2, and CB3, with CBZ as an energy donor, tethered together with spacers of varied sizes i.e., phenyl bridge, biphenyl bridge and diphenylethyne bridge, respectively, are reported.
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Affiliation(s)
- Govind Reddy
- Polymers & Functional Materials Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Naresh Duvva
- Polymers & Functional Materials Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | | | | | - Lingamallu Giribabu
- Polymers & Functional Materials Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
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9
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Ondarse-Alvarez D, Oldani N, Roitberg AE, Kleiman V, Tretiak S, Fernandez-Alberti S. Energy transfer and spatial scrambling of an exciton in a conjugated dendrimer. Phys Chem Chem Phys 2018; 20:29648-29660. [DOI: 10.1039/c8cp05852k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photoexcitation of multichromophoric light harvesting molecules induces a number of intramolecular electronic energy relaxation and redistribution pathways that can ultimately lead to ultrafast exciton self-trapping on a single chromophore unit.
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Affiliation(s)
- D. Ondarse-Alvarez
- Departamento de Ciencia y Tecnologia
- Universidad Nacional de Quilmes/CONICET
- B1876BXD Bernal
- Argentina
| | - N. Oldani
- Departamento de Ciencia y Tecnologia
- Universidad Nacional de Quilmes/CONICET
- B1876BXD Bernal
- Argentina
| | - A. E. Roitberg
- Department of Chemistry of Chemistry
- University of Florida
- Gainesville
- USA
| | - V. Kleiman
- Department of Chemistry of Chemistry
- University of Florida
- Gainesville
- USA
| | - S. Tretiak
- Theoretical Division
- Center for Nonlinear Studies (CNLS), and Center for Integrated Nanotechnologies (CINT)
- Los Alamos National Laboratory
- Los Alamos
- USA
| | - S. Fernandez-Alberti
- Departamento de Ciencia y Tecnologia
- Universidad Nacional de Quilmes/CONICET
- B1876BXD Bernal
- Argentina
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10
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McKenna B, Evans RC. Towards Efficient Spectral Converters through Materials Design for Luminescent Solar Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1606491. [PMID: 28524245 DOI: 10.1002/adma.201606491] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 01/21/2017] [Indexed: 05/20/2023]
Abstract
Single-junction photovoltaic devices exhibit a bottleneck in their efficiency due to incomplete or inefficient harvesting of photons in the low- or high-energy regions of the solar spectrum. Spectral converters can be used to convert solar photons into energies that are more effectively captured by the photovoltaic device through a photoluminescence process. Here, recent advances in the fields of luminescent solar concentration, luminescent downshifting, and upconversion are discussed. The focus is specifically on the role that materials science has to play in overcoming barriers in the optical performance in all spectral converters and on their successful integration with both established (e.g., c-Si, GaAs) and emerging (perovskite, organic, dye-sensitized) cell types. Current challenges and emerging research directions, which need to be addressed for the development of next-generation luminescent solar devices, are also discussed.
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Affiliation(s)
- Barry McKenna
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Rachel C Evans
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
- Department of Materials Science & Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge, CB3 0FS, U.K
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11
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Mazza MMA, Yamazaki S, Mai DX, Padgaonkar S, Peurifoy S, Goncalves A, Wu YL, Hu Q, Scott AM. Photoinduced charge recombination in dipolar D-A-A photonic liquid crystal polymorphs. Phys Chem Chem Phys 2017; 19:4588-4596. [PMID: 28124694 DOI: 10.1039/c6cp08631d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A hexylalkoxy dipolar D-A-A molecule [7-(4-N,N-(bis(4-hexyloxyphenyl)amino)phenyl)-2,1,3-(benzothia-diazol-4-yl)methylene]propane-dinitrile, (C6-TPA-BT-CN) has been synthesized and the photophysics studied via femtosecond transient absorption spectroscopy (FsTA) in toluene and in amorphous and liquid crystalline spherulite thin films. Two spherulite macromolecular crystalline phases (banded, and non-banded) were observed through concentration dependent, solution processing techniques and are birefringent with a negative sign of elongation. A dramatic change in the electronic absorption from blue in amorphous films to green in spherulites was observed, and the molecular orientation was determined through the combined analysis of polarized light microscopy, X-ray diffraction, and scanning electron microscopy. FsTA was performed on amorphous films and show complex charge recombination dynamics, and a Stark effect, characterized from the combined TPA+˙ and [BT-CN]-˙ spectroscopic signatures at 450 nm and 510 nm and identified through spectroelectrochemistry. Radical cation dynamics of TPA+˙ was observed selectively at 750 nm with >503.3 ps (18%) recombination kinetics resulting in a rather significant yield of free charge carriers in amorphous films and consistent with previous reports on energetically disordered blend films. However, photoexcitation on large, non-banded spherulites areas (>250 μm) reveal average monoexponential charge recombination lifetimes of 169.2 ps from delocalized states similar to those observed in amorphous films and are 5× longer-lived than previous reports [Chang et al., J. Am. Chem. Soc., 2013, 135, 8790] of a related methyl-DPAT-BT-CN whose amorphous thin films were prepared through vapor deposition. Thus, the correlation between the microstructure of the blend film and the photoinduced radical pair dynamics described here is critical for developing a fundamental understanding of how dipolar states contribute to the charge carrier yield in a disordered energy system.
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Affiliation(s)
- Mercedes M A Mazza
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146, USA.
| | - Shiori Yamazaki
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146, USA.
| | - Dieu X Mai
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146, USA.
| | - Suyog Padgaonkar
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146, USA.
| | - Samuel Peurifoy
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146, USA.
| | - Ariane Goncalves
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146, USA.
| | - Yi-Lin Wu
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Qiaoyu Hu
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146, USA.
| | - Amy M Scott
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146, USA.
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12
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Zhang F, Baudron SA, Hosseini MW. Solvent and anion effects on the organization of a luminescent [2 + 2] BODIPY/Ag(i) metallamacrocycle in the crystalline state. CrystEngComm 2017. [DOI: 10.1039/c7ce00997f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The assembly of a novel BODIPY bearing peripheral vinyl–benzonitrile groups with AgX salts (X− = AsF6−, BF4−, ClO4−) leads to the recurrent formation of a [2 + 2] [Ag2(BODIPY)2]2+ type metallamacrocycle featuring emission in the crystalline state.
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Affiliation(s)
- Fan Zhang
- Laboratoire de Tectonique Moléculaire
- UMR CNRS 7140
- icFRC
- Université de Strasbourg
- Strasbourg
| | - Stéphane A. Baudron
- Laboratoire de Tectonique Moléculaire
- UMR CNRS 7140
- icFRC
- Université de Strasbourg
- Strasbourg
| | - Mir Wais Hosseini
- Laboratoire de Tectonique Moléculaire
- UMR CNRS 7140
- icFRC
- Université de Strasbourg
- Strasbourg
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13
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Seintis K, Agathangelou D, Cvejn D, Almonasy N, Bureš F, Giannetas V, Fakis M. Femtosecond to nanosecond studies of octupolar molecules and their quadrupolar and dipolar analogues. Phys Chem Chem Phys 2017; 19:16485-16497. [DOI: 10.1039/c7cp01463e] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The fs–ps anisotropy dynamics of octupolar, quadrupolar and dipolar molecules with different π-bridges.
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Affiliation(s)
- K. Seintis
- Department of Physics
- University of Patras
- Patras
- Greece
| | | | - D. Cvejn
- Institute of Organic Chemistry and Technology
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice
- Czech Republic
| | - N. Almonasy
- Institute of Organic Chemistry and Technology
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice
- Czech Republic
| | - F. Bureš
- Institute of Organic Chemistry and Technology
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice
- Czech Republic
| | - V. Giannetas
- Department of Physics
- University of Patras
- Patras
- Greece
| | - M. Fakis
- Department of Physics
- University of Patras
- Patras
- Greece
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14
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Kaloudi-Chantzea A, Martinou E, Seintis K, Karakostas N, Giastas P, Pitterl F, Oberacher H, Fakis M, Pistolis G. Formation of a highly-ordered rigid multichromophoric 3D supramolecular network by combining ionic and coordination-driven self-assembly. Chem Commun (Camb) 2016; 52:3388-91. [DOI: 10.1039/c5cc10335e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A highly-ordered supramolecular network for energy transfer and polarization switching.
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Affiliation(s)
| | - Elisabeth Martinou
- NCSR “Demokritos” Institute of Nanoscience and Nanotechnology
- 153 10 Athens
- Greece
| | - Kostas Seintis
- Department of Physics
- University of Patras
- 26500 Patras
- Greece
| | - Nikolaos Karakostas
- NCSR “Demokritos” Institute of Nanoscience and Nanotechnology
- 153 10 Athens
- Greece
| | | | - Florian Pitterl
- Inst. of Legal Medicine and Core Facility Metabolomics
- Medical Univ. of Innsbruck
- 6020 Innsbruck
- Austria
| | - Herbert Oberacher
- Inst. of Legal Medicine and Core Facility Metabolomics
- Medical Univ. of Innsbruck
- 6020 Innsbruck
- Austria
| | - Mihalis Fakis
- Department of Physics
- University of Patras
- 26500 Patras
- Greece
| | - George Pistolis
- NCSR “Demokritos” Institute of Nanoscience and Nanotechnology
- 153 10 Athens
- Greece
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