1
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Cui K, Hammes-Schiffer S. Theory for proton-coupled energy transfer. J Chem Phys 2024; 161:034113. [PMID: 39012810 DOI: 10.1063/5.0217546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Accepted: 06/06/2024] [Indexed: 07/18/2024] Open
Abstract
In the recently discovered proton-coupled energy transfer (PCEnT) mechanism, the transfer of electronic excitation energy between donor and acceptor chromophores is coupled to a proton transfer reaction. Herein, we develop a general theory for PCEnT and derive an analytical expression for the nonadiabatic PCEnT rate constant. This theory treats the transferring hydrogen nucleus quantum mechanically and describes the PCEnT process in terms of nonadiabatic transitions between reactant and product electron-proton vibronic states. The rate constant is expressed as a summation over these vibronic states, and the contribution of each pair of vibronic states depends on the square of the vibronic coupling as well as the spectral convolution integral, which can be viewed as a generalization of the Förster-type spectral overlap integral for vibronic rather than electronic states. The convolution integral also accounts for the common vibrational modes shared by the donor and acceptor chromophores for intramolecular PCEnT. We apply this theory to model systems to investigate the key features of PCEnT processes. The excited vibronic states can contribute significantly to the total PCEnT rate constant, and the common modes can either slow down or speed up the process. Because the pairs of vibronic states that contribute the most to the PCEnT rate constant may correspond to spectroscopically dark states, PCEnT could occur even when there is no apparent overlap between the donor emission and acceptor absorption spectra. This theory will assist in the interpretation of experimental data and will guide the design of additional PCEnT systems.
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Affiliation(s)
- Kai Cui
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA
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2
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Coane CV, Romanelli M, Dall'Osto G, Di Felice R, Corni S. Unraveling the mechanism of tip-enhanced molecular energy transfer. Commun Chem 2024; 7:32. [PMID: 38360897 PMCID: PMC10869822 DOI: 10.1038/s42004-024-01118-1] [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: 07/04/2023] [Accepted: 02/01/2024] [Indexed: 02/17/2024] Open
Abstract
Electronic Energy Transfer (EET) between chromophores is fundamental in many natural light-harvesting complexes, serving as a critical step for solar energy funneling in photosynthetic plants and bacteria. The complicated role of the environment in mediating this process in natural architectures has been addressed by recent scanning tunneling microscope experiments involving EET between two molecules supported on a solid substrate. These measurements demonstrated that EET in such conditions has peculiar features, such as a steep dependence on the donor-acceptor distance, reminiscent of a short-range mechanism more than of a Förster-like process. By using state of the art hybrid ab initio/electromagnetic modeling, here we provide a comprehensive theoretical analysis of tip-enhanced EET. In particular, we show that this process can be understood as a complex interplay of electromagnetic-based molecular plasmonic processes, whose result may effectively mimic short range effects. Therefore, the established identification of an exponential decay with Dexter-like effects does not hold for tip-enhanced EET, and accurate electromagnetic modeling is needed to identify the EET mechanism.
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Affiliation(s)
- Colin V Coane
- Department of Chemical Sciences, University of Padova, via Marzolo 1, Padova, Italy
- Department of Physics and Astronomy, University of Southern California, Los Angeles, CA, 90089, USA
| | - Marco Romanelli
- Department of Chemical Sciences, University of Padova, via Marzolo 1, Padova, Italy
| | - Giulia Dall'Osto
- Department of Chemical Sciences, University of Padova, via Marzolo 1, Padova, Italy
| | - Rosa Di Felice
- Department of Physics and Astronomy, University of Southern California, Los Angeles, CA, 90089, USA.
- CNR Institute of Nanoscience, via Campi 213/A, Modena, Italy.
| | - Stefano Corni
- Department of Chemical Sciences, University of Padova, via Marzolo 1, Padova, Italy.
- CNR Institute of Nanoscience, via Campi 213/A, Modena, Italy.
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3
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Richards R, Song Y, O’Connor L, Wang X, Dailing EA, Bragg AE, Ayzner AL. Exciton Transfer Between Extended Electronic States in Conjugated Inter-Polyelectrolyte Complexes. ACS APPLIED MATERIALS & INTERFACES 2024; 16. [PMID: 38289236 PMCID: PMC11056932 DOI: 10.1021/acsami.3c14657] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 12/19/2023] [Accepted: 12/25/2023] [Indexed: 05/01/2024]
Abstract
Artificial light harvesting, a process that involves converting sunlight into chemical potential energy, is considered to be a promising part of the overall solution to address urgent global energy challenges. Conjugated polyelectrolyte complexes (CPECs) are particularly attractive for this purpose due to their extended electronic states, tunable assembly thermodynamics, and sensitivity to their local environment. Importantly, ionically assembled complexes of conjugated polyelectrolytes can act as efficient donor-acceptor pairs for electronic energy transfer (EET). However, to be of use in material applications, we must understand how modifying the chemical structure of the CPE backbone alters the EET rate beyond spectral overlap considerations. In this report we investigate the dependence of the EET efficiency and rate on the electronic structure and excitonic wave function of the CPE backbone. To do so, we synthesized a series of alternating copolymers where the electronic states are systematically altered by introducing comonomers with electron withdrawing and electron-rich character while keeping the linear ionic charge density nearly fixed. We find evidence that the excitonic coupling may be significantly affected by the exciton delocalization radius, in accordance with analytical models based on the line-dipole approximation and quantum chemistry calculations. Our results imply that care should be taken when selecting CPE components for optimal CPEC EET. These results have implications for using CPECs as key components in water-based light-harvesting materials, either as standalone assemblies or as adsorbates on nanoparticles and thin films.
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Affiliation(s)
- Rachael Richards
- Department
of Chemistry and Biochemistry, University
of California Santa Cruz, Santa
Cruz, California 95064, United States
| | - Yuqi Song
- Department
of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Luke O’Connor
- Department
of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Xiao Wang
- Department
of Chemistry and Biochemistry, University
of California Santa Cruz, Santa
Cruz, California 95064, United States
| | - Eric A. Dailing
- The
Molecular Foundry, Lawrence Berkeley National
Laboratory, Berkeley, California 94720,United States
| | - Arthur E. Bragg
- Department
of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Alexander L. Ayzner
- Department
of Chemistry and Biochemistry, University
of California Santa Cruz, Santa
Cruz, California 95064, United States
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4
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Giavazzi D, Saseendran S, Di Maiolo F, Painelli A. A Comprehensive Approach to Exciton Delocalization and Energy Transfer. J Chem Theory Comput 2022; 19:436-447. [PMID: 36563008 PMCID: PMC9878730 DOI: 10.1021/acs.jctc.2c00980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Indexed: 12/24/2022]
Abstract
Electrostatic intermolecular interactions lie at the heart of both the Förster model for resonance energy transfer (RET) and the exciton model for energy delocalization. In the Förster theory of RET, the excitation energy incoherently flows from the energy donor to a weakly coupled energy acceptor. The exciton model describes instead the energy delocalization in aggregates of identical (or nearly so) molecules. Here, we introduce a model that brings together molecular aggregates and RET. We will consider a couple of molecules, each described in terms of two diabatic electronic states, coupled to an effective molecular vibration. Electrostatic intermolecular interactions drive energy fluxes between the molecules, that, depending on model parameters, can be described as RET or energy delocalization. At variance with the standard Förster model for RET and of the exciton model for aggregates, our approach applies both in the weak and in the strong coupling regimes and fully accounts for the quantum nature of molecular vibrations in a nonadiabatic approach. Coupling the system to a thermal bath, we follow RET and energy delocalization in real time and simulate time-resolved emission spectra.
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Affiliation(s)
- D. Giavazzi
- Department of Chemistry,
Life Science and Environmental Sustainability, Università di Parma, 43124 Parma, Italy
| | - S. Saseendran
- Department of Chemistry,
Life Science and Environmental Sustainability, Università di Parma, 43124 Parma, Italy
| | - F. Di Maiolo
- Department of Chemistry,
Life Science and Environmental Sustainability, Università di Parma, 43124 Parma, Italy
| | - A. Painelli
- Department of Chemistry,
Life Science and Environmental Sustainability, Università di Parma, 43124 Parma, Italy
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5
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Gioti M, Tselekidou D, Foris V, Kyriazopoulos V, Papadopoulos K, Kassavetis S, Logothetidis S. Influence of Dopant Concentration and Annealing on Binary and Ternary Polymer Blends for Active Materials in OLEDs. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4099. [PMID: 36432386 PMCID: PMC9699568 DOI: 10.3390/nano12224099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/10/2022] [Accepted: 11/17/2022] [Indexed: 06/16/2023]
Abstract
Obtaining white light from organic LEDs is a considerable challenge and, to realize white light emission, many studies have been conducted, primarily addressing two- or three-color blend systems as a promising strategy. In this work, pristine films, grown by spin coating, consisting of commercial blue Poly(9,9-di-n-octylfluorenyl-2,7-diyl) (PFO), green Poly(9,9-dioctylfluorene-alt-benzothiadiazole) (F8BT), and red spiro-copolymer (SPR) light-emitting materials, were studied as reference materials. Afterward, binary (SPR doped in host PFO) and ternary (SPR and F8BT doped in host PFO) thin films were successfully prepared with various ratios. The characterization of the as-grown and thermally-treated blend films was focused on their optical and photophysical properties. After, the fabrication of OLED devices on glass substrates was carried out for the evaluation of a blend's composition and annealing in terms of the devices' electrical characteristics and electro-emission properties in order to achieve white light emission. Their analysis provided insights into the energy transfer mechanisms between the constituent materials, which were correlated to host-guest interactions as well as to the structural changes originated by thermal treatment, leading to the crystallization of PFO. Finally, the OLEDs based on ternary blends approach the white light emission with (x, y) of (0.272, 0.346). These fabricated devices also exhibit turn-on voltages as low as 3 V, accompanied by remarkable luminance values above 3000 cd/m2.
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Affiliation(s)
- Maria Gioti
- Nanotechnology Lab LTFN, Department of Physics, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Despoina Tselekidou
- Nanotechnology Lab LTFN, Department of Physics, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Vasileios Foris
- Nanotechnology Lab LTFN, Department of Physics, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Vasileios Kyriazopoulos
- Organic Electronic Technologies P.C. (OET), 20th KM Thessaloniki—Tagarades, GR-57001 Thermi, Greece
| | - Kyparisis Papadopoulos
- Nanotechnology Lab LTFN, Department of Physics, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Spyros Kassavetis
- Nanotechnology Lab LTFN, Department of Physics, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Stergios Logothetidis
- Nanotechnology Lab LTFN, Department of Physics, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
- Organic Electronic Technologies P.C. (OET), 20th KM Thessaloniki—Tagarades, GR-57001 Thermi, Greece
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6
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Mondal D, Mandal RP, De S. Addressing the Superior Drug Delivery Performance of Bilosomes─A Microscopy and Fluorescence Study. ACS APPLIED BIO MATERIALS 2022; 5:3896-3911. [PMID: 35924346 DOI: 10.1021/acsabm.2c00435] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The global health scenario in present times has raised human awareness about drug delivery strategies. Among colloidal drug delivery vehicles, vesicular nanocarriers such as liposomes and niosomes are popular. However, liposomes and niosomes get disrupted in the harsh environment of the gastrointestinal tract. In this context, the drug delivery community has reported the superior performance of vesicles containing bile salts, that is, bilosomes. The present work attempts to examine the structural/morphological aspects underlying the superior performance of bilosomes. Optical microscopy, electron microscopy, and light scattering give a definite proof of the enhanced stability of bilosomes compared to niosomes, both prepared from the same amphiphilic molecule. Fluorescence probing of the vesicles provides detailed insight into the bilayer characteristics and the differences between bilosomes and niosomes. Fluorescence resonance energy transfer studies lend further support to the findings that bilosomes have a more flexible bilayer structure than niosomes. The entrapment efficiency of the vesicles for the well-known antioxidant curcumin (whose bioavailability is a matter of concern due to low water solubility) was also studied. Bilosomes show higher curcumin entrapment efficiency than niosomes. For use in drug delivery, one needs to establish a trade-off between cargo/drug entrapment and release. Thus, a flexible bilayer structure is an advantage.
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Affiliation(s)
- Durga Mondal
- Department of Chemistry, University of Kalyani, Kalyani 741235, West Bengal, India
| | - Ranju Prasad Mandal
- Scientist Novel Hair Dyes, Henkel Beauty Care, Henkel AG & Co. KGaA, Henkelstraße 67, 40589 Düsseldorf, Germany
| | - Swati De
- Department of Chemistry, University of Kalyani, Kalyani 741235, West Bengal, India
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7
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Khadria A. Tools to measure membrane potential of neurons. Biomed J 2022; 45:749-762. [DOI: 10.1016/j.bj.2022.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 05/08/2022] [Accepted: 05/29/2022] [Indexed: 12/31/2022] Open
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8
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Durán-Hernández J, Muñoz-Rugeles L, Guzmán-Méndez Ó, M Reza M, Cadena-Caicedo A, García-Montalvo V, Peón J. Sensitization of Nd 3+ Luminescence by Simultaneous Two-Photon Excitation through a Coordinating Polymethinic Antenna. J Phys Chem A 2022; 126:2498-2510. [PMID: 35436116 DOI: 10.1021/acs.jpca.2c01052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We have designed and synthesized two new cyaninic Nd3+ complexes where the lanthanide emission can be induced from simultaneous two-photon absorption followed by energy migration. These complexes correspond to a molecular design that uses an antenna ligand formed by the functionalization of a heptamethine dye with 5-ol-phenanthroline or 4-phenyl-terpyridine derivatives. These complexes employ the important nonlinear optical properties of symmetric polymethines to sensitize the lanthanide ion. We verified that simultaneous biphotonic excitation indirectly induces the 4F3/2 → 4I11/2 Nd3+ emission using femtosecond laser pulses tuned below the first electronic transition of the antenna. The simultaneous two-photon excitation events initially form the nonlinear-active second excited singlet of the polymethine antenna, which rapidly evolves into its first excited singlet. This state in turn induces the formation of the emissive Nd3+ states through energy transfer. The role of the first excited singlet of the antenna as the donor state in this process was verified through time resolution of the antenna's fluorescence. These measurements also provided the rates for antenna-lanthanide energy transfer, which indicate that the phenanthroline-type ligand is approximately five times more efficient for energy transfer than the phenyl-terpyridine derivative due to their relative donor-acceptor distances. The simultaneous two-photon excitation of this polymethine antenna allows for high spatial localization of the Nd3+excitation events.
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Affiliation(s)
- Jesús Durán-Hernández
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
| | - Leonardo Muñoz-Rugeles
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
| | - Óscar Guzmán-Méndez
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
| | - Mariana M Reza
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
| | - Andrea Cadena-Caicedo
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
| | | | - Jorge Peón
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
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9
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Dimitriev OP. Dynamics of Excitons in Conjugated Molecules and Organic Semiconductor Systems. Chem Rev 2022; 122:8487-8593. [PMID: 35298145 DOI: 10.1021/acs.chemrev.1c00648] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The exciton, an excited electron-hole pair bound by Coulomb attraction, plays a key role in photophysics of organic molecules and drives practically important phenomena such as photoinduced mechanical motions of a molecule, photochemical conversions, energy transfer, generation of free charge carriers, etc. Its behavior in extended π-conjugated molecules and disordered organic films is very different and very rich compared with exciton behavior in inorganic semiconductor crystals. Due to the high degree of variability of organic systems themselves, the exciton not only exerts changes on molecules that carry it but undergoes its own changes during all phases of its lifetime, that is, birth, conversion and transport, and decay. The goal of this review is to give a systematic and comprehensive view on exciton behavior in π-conjugated molecules and molecular assemblies at all phases of exciton evolution with emphasis on rates typical for this dynamic picture and various consequences of the above dynamics. To uncover the rich variety of exciton behavior, details of exciton formation, exciton transport, exciton energy conversion, direct and reverse intersystem crossing, and radiative and nonradiative decay are considered in different systems, where these processes lead to or are influenced by static and dynamic disorder, charge distribution symmetry breaking, photoinduced reactions, electron and proton transfer, structural rearrangements, exciton coupling with vibrations and intermediate particles, and exciton dissociation and annihilation as well.
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Affiliation(s)
- Oleg P Dimitriev
- V. Lashkaryov Institute of Semiconductor Physics NAS of Ukraine, pr. Nauki 41, Kyiv 03028, Ukraine
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10
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Lewis TN, Tonnelé C, Shuler WG, Kasun ZA, Sato H, Berges AJ, Rodriguez JR, Krische MJ, Casanova D, Bardeen CJ. Chemical Tuning of Exciton versus Charge-Transfer Excited States in Conformationally Restricted Arylene Cages. J Am Chem Soc 2021; 143:18548-18558. [PMID: 34709810 DOI: 10.1021/jacs.1c08176] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Covalent assemblies of conjugated organic chromophores provide the opportunity to engineer new excited states with novel properties. In this work, a newly developed triple-stranded cage architecture, in which meta-substituted aromatic caps serve as covalent linking groups that attach to both top and bottom of the conjugated molecule walls, is used to tune the properties of thiophene oligomer assemblies. Benzene-capped and triazine-capped 5,5'-(2,2-bithiophene)-containing arylene cages are synthesized and characterized using steady-state and time-resolved spectroscopic methods. The conformational freedom and electronic states are analyzed using time-dependent density functional theory. The benzene cap acts as a passive spacer whose electronic states do not mix with those of the chromophore walls. The excited state properties are dominated by through-space interactions between the chromophore subunits, generating a neutral Frenkel H-type exciton state. This excitonic state undergoes intersystem crossing on a 200 ps time scale while the fluorescence output is suppressed by a factor of 2 due to a decreased radiative rate. Switching to a triazine cap enables electron transfer from the chromophore-linker after the initial excitation to the exciton state, leading to the formation of a charge-transfer state within 10 ps. This state can avoid intersystem crossing and exhibits red-shifted fluorescence with enhanced quantum yield. The ability to interchange structural modules with different electronic properties while retaining the overall cage morphology provides a new approach for tuning the properties of discrete chromophore assemblies.
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Affiliation(s)
- Taylor N Lewis
- University of California, Riverside, Department of Chemistry, Riverside, California 92521, United States
| | - Claire Tonnelé
- Donostia International Physics Center (DIPC), 20018, Donostia, Euskadi Spain
| | - William G Shuler
- University of Texas at Austin, Department of Chemistry, Austin, Texas 78712, United States
| | - Zachary A Kasun
- University of Texas at Austin, Department of Chemistry, Austin, Texas 78712, United States
| | - Hiroki Sato
- University of Texas at Austin, Department of Chemistry, Austin, Texas 78712, United States
| | - Adam J Berges
- University of California, Riverside, Department of Chemistry, Riverside, California 92521, United States
| | - Jacob R Rodriguez
- University of California, Riverside, Department of Materials Science and Engineering, Riverside, California 92521, United States
| | - Michael J Krische
- University of Texas at Austin, Department of Chemistry, Austin, Texas 78712, United States
| | - David Casanova
- Donostia International Physics Center (DIPC), 20018, Donostia, Euskadi Spain.,IKERBASQUE - Basque Foundation for Science, 48009, Bilbao, Euskadi Spain
| | - Christopher J Bardeen
- University of California, Riverside, Department of Chemistry, Riverside, California 92521, United States.,University of California, Riverside, Department of Materials Science and Engineering, Riverside, California 92521, United States
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11
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Fujimoto KJ. Electronic Couplings and Electrostatic Interactions Behind the Light Absorption of Retinal Proteins. Front Mol Biosci 2021; 8:752700. [PMID: 34604313 PMCID: PMC8480471 DOI: 10.3389/fmolb.2021.752700] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 09/02/2021] [Indexed: 11/13/2022] Open
Abstract
The photo-functional chromophore retinal exhibits a wide variety of optical absorption properties depending on its intermolecular interactions with surrounding proteins and other chromophores. By utilizing these properties, microbial and animal rhodopsins express biological functions such as ion-transport and signal transduction. In this review, we present the molecular mechanisms underlying light absorption in rhodopsins, as revealed by quantum chemical calculations. Here, symmetry-adapted cluster-configuration interaction (SAC-CI), combined quantum mechanical and molecular mechanical (QM/MM), and transition-density-fragment interaction (TDFI) methods are used to describe the electronic structure of the retinal, the surrounding protein environment, and the electronic coupling between chromophores, respectively. These computational approaches provide successful reproductions of experimentally observed absorption and circular dichroism (CD) spectra, as well as insights into the mechanisms of unique optical properties in terms of chromophore-protein electrostatic interactions and chromophore-chromophore electronic couplings. On the basis of the molecular mechanisms revealed in these studies, we also discuss strategies for artificial design of the optical absorption properties of rhodopsins.
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Affiliation(s)
- Kazuhiro J Fujimoto
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan.,Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, Japan
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12
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Fujimoto KJ, Minoda T, Yanai T. Spectral Tuning Mechanism of Photosynthetic Light-Harvesting Complex II Revealed by Ab Initio Dimer Exciton Model. J Phys Chem B 2021; 125:10459-10470. [PMID: 34521196 DOI: 10.1021/acs.jpcb.1c04457] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Excited states of two kinds of bacteriochlorophyll (BChl) aggregates, B850 and B800, in photosynthetic light-harvesting complex II (LH2) are theoretically investigated by developing and using an extended exciton model considering efficiently evaluated excitonic coupling. Our exciton model based on dimer fragmentation is shown to reproduce the experimental absorption spectrum of LH2 with good accuracy, entailing their different redshifts originating from aggregations of B850 and B800. The systematic analysis has been performed on the spectra by quantitatively decomposing their spectral shift energies into the contributions of various effects: structural distortion, electrostatic, excitonic coupling, and charge-transfer (CT) effects. Our results show that the spectral redshift of B800 is mainly attributed to its electrostatic interaction with the protein environment, while that of B850 arises from the marked effect of the excitonic coupling between BChl units. The interchromophore CT excitation also plays a key role in the spectral redshift of B850. This CT effect can be effectively described using our dimer model. This suited characterization reveals that the pronounced CT effect originates from the characteristics of B850 that has closely spaced BChls as dimers. We highlight the importance of the refinement of the crystal structure with the use of quantum chemical methods for prediction of the spectrum.
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Affiliation(s)
- Kazuhiro J Fujimoto
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furocho, Chikusa, Nagoya, 464-8601, Japan.,Department of Chemistry, Graduate School of Science, Nagoya University, Furocho, Chikusa, Nagoya, 464-8601, Japan
| | - Takumi Minoda
- Department of Chemistry, Graduate School of Science, Nagoya University, Furocho, Chikusa, Nagoya, 464-8601, Japan
| | - Takeshi Yanai
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furocho, Chikusa, Nagoya, 464-8601, Japan.,Department of Chemistry, Graduate School of Science, Nagoya University, Furocho, Chikusa, Nagoya, 464-8601, Japan
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13
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Cao S, Rosławska A, Doppagne B, Romeo M, Féron M, Chérioux F, Bulou H, Scheurer F, Schull G. Energy funnelling within multichromophore architectures monitored with subnanometre resolution. Nat Chem 2021; 13:766-770. [PMID: 34031563 DOI: 10.1038/s41557-021-00697-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 04/08/2021] [Indexed: 02/04/2023]
Abstract
The funnelling of energy within multichromophoric assemblies is at the heart of the efficient conversion of solar energy by plants. The detailed mechanisms of this process are still actively debated as they rely on complex interactions between a large number of chromophores and their environment. Here we used luminescence induced by scanning tunnelling microscopy to probe model multichromophoric structures assembled on a surface. Mimicking strategies developed by photosynthetic systems, individual molecules were used as ancillary, passive or blocking elements to promote and direct resonant energy transfer between distant donor and acceptor units. As it relies on organic chromophores as the elementary components, this approach constitutes a powerful model to address fundamental physical processes at play in natural light-harvesting complexes.
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Affiliation(s)
- Shuiyan Cao
- Université de Strasbourg, CNRS, IPCMS, UMR 7504, Strasbourg, France.,Department of Applied Physics, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Anna Rosławska
- Université de Strasbourg, CNRS, IPCMS, UMR 7504, Strasbourg, France.
| | | | | | - Michel Féron
- Université Bourgogne Franche-Comté, FEMTO-ST, UFC, CNRS, Besançon, France
| | - Frédéric Chérioux
- Université Bourgogne Franche-Comté, FEMTO-ST, UFC, CNRS, Besançon, France
| | - Hervé Bulou
- Université de Strasbourg, CNRS, IPCMS, UMR 7504, Strasbourg, France
| | - Fabrice Scheurer
- Université de Strasbourg, CNRS, IPCMS, UMR 7504, Strasbourg, France
| | - Guillaume Schull
- Université de Strasbourg, CNRS, IPCMS, UMR 7504, Strasbourg, France.
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14
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Mondal S, Mondal S, Seki K, Bagchi B. An exact solution in the theory of fluorescence resonance energy transfer with vibrational relaxation. J Chem Phys 2021; 154:134104. [PMID: 33832249 DOI: 10.1063/5.0045008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The elegant expression of Förster that predicts the well-known 1/R6 distance (R) dependence of the rate of energy transfer, although widely used, was derived using several approximations. Notable among them is the neglect of the vibrational relaxation in the reactant (donor) and product (acceptor) manifolds. Vibrational relaxation can play an important role when the energy transfer rate is faster than the vibrational relaxation rate. Under such conditions, donor to acceptor energy transfer can occur from the excited vibrational states. This phenomenon is not captured by the usual formulation based on the overlap of donor emission and acceptor absorption spectra. Here, we develop a Green's function-based generalized formalism and obtain an exact solution for the excited state population relaxation and the rate of energy transfer in the presence of vibrational relaxation. We find that the application of the well-known Förster's expression might lead to overestimation of R.
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Affiliation(s)
- Sangita Mondal
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bengaluru, India
| | - Sayantan Mondal
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bengaluru, India
| | - Kazuhiko Seki
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
| | - Biman Bagchi
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bengaluru, India
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15
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de Sousa LE, de Paiva LSR, da Silva Filho DA, Sini G, de Oliveira Neto PH. Assessing the effects of increasing conjugation length on exciton diffusion: from small molecules to the polymeric limit. Phys Chem Chem Phys 2021; 23:15635-15644. [PMID: 34268543 DOI: 10.1039/d1cp01263k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Organic solar cells (OSC) generally contain long-chain π-conjugated polymers as donor materials, but, more recently, small-molecule donors have also attracted considerable attention. The nature of these compounds is of crucial importance concerning the various processes that determine device performance, among which singlet exciton diffusion is one of the most relevant. The efficiency of the diffusion mechanism depends on several aspects, from system morphology to electronic structure properties, which vary importantly with molecular size. In this work, we investigated the effects of conjugation length on the exciton diffusion length through electronic structure calculations and an exciton diffusion model. By applying extrapolation procedures to thiophene and phenylene vinylene oligomer series, we investigate their electronic and optical properties from the small-molecule point of view to the polymeric limit. Several properties are calculated as a function of oligomer size, including transition energies, absorption and emission spectra, reorganization energies, exciton coupling and Förster radii. Finally, an exciton diffusion model is used to estimate diffusion lengths as a function of oligomer size and for the polymeric limit showing agreement with experimental data. Results also show that longer conjugation lengths correlate with longer exciton diffusion lengths in spite of also being associated with shorter exciton lifetimes.
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Affiliation(s)
- Leonardo Evaristo de Sousa
- Department of Energy Conversion and Storage, Technical University of Denmark, Anker Engelunds Vej 301, 2800 Kongens Lyngby, Denmark
| | | | - Demétrio Antônio da Silva Filho
- Institute of Physics, University of Brasilia, 70919-970, Brasilia, Brazil. and Laboratoire de Physicochimie des Polymères et des Interfaces, EA 2528, CY Cergy Paris Université, 5 mail Gay-Lussac, 95031, Cergy-Pontoise Cedex, France and Institute for Advanced Studies, CY Cergy Paris Université, 1 rue Descartes, 95000, Neuville-sur-Oise, France
| | - Gjergji Sini
- Laboratoire de Physicochimie des Polymères et des Interfaces, EA 2528, CY Cergy Paris Université, 5 mail Gay-Lussac, 95031, Cergy-Pontoise Cedex, France
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16
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Anzola M, Sissa C, Painelli A, Hassanali AA, Grisanti L. Understanding Förster Energy Transfer through the Lens of Molecular Dynamics. J Chem Theory Comput 2020; 16:7281-7288. [DOI: 10.1021/acs.jctc.0c00893] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mattia Anzola
- Department of Chemistry, Life Science and Environmental Sustainability, Parma University, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Cristina Sissa
- Department of Chemistry, Life Science and Environmental Sustainability, Parma University, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Anna Painelli
- Department of Chemistry, Life Science and Environmental Sustainability, Parma University, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Ali A. Hassanali
- Condensed Matter and Statistical Physics, International Centre for Theoretical Physics, Strada Costiera 11, 34151 Trieste, Italy
| | - Luca Grisanti
- Division of Theoretical Physics, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
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17
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Fujimoto KJ, Inoue K. Excitonic coupling effect on the circular dichroism spectrum of sodium-pumping rhodopsin KR2. J Chem Phys 2020; 153:045101. [DOI: 10.1063/5.0013642] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
- Kazuhiro J. Fujimoto
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furocho, Chikusa, Nagoya 464-8601, Japan
| | - Keiichi Inoue
- The Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8581, Japan
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18
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de Sousa LE, Silva Filho DA, de Silva P, Ribeiro L, Oliveira Neto PH. A Genetic Algorithm Approach to Design Principles for Organic Photovoltaic Materials. ADVANCED THEORY AND SIMULATIONS 2020. [DOI: 10.1002/adts.202000042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Demétrio Antônio Silva Filho
- Institute of PhysicsUniversity of BrasiliaBrasilia Brasilia 70919‐970 Brazil
- Institute for Advanced StudiesUniversity of Cergy‐Pontoise1 rue Descartes Neuville‐sur‐Oise 95000 France
| | - Piotr de Silva
- Department of Energy Conversion and StorageTechnical University of Denmark Anker Engelunds Vej 301 Kongens Lyngby 2800
| | - Luciano Ribeiro
- Theoretical and Structural Chemistry GroupState University of GoiasAnapolis 75132-400 Brazil
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19
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Dutta R, Bagchi B. Quantum Coherence and Its Signatures in Extended Quantum Systems. J Phys Chem B 2020; 124:4551-4563. [DOI: 10.1021/acs.jpcb.0c02190] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Rajesh Dutta
- SSCU, Indian Institute of Science, Bangalore 560012, India
| | - Biman Bagchi
- SSCU, Indian Institute of Science, Bangalore 560012, India
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20
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Wang YS, Nijjar P, Zhou X, Bondar DI, Prezhdo OV. Combining Lindblad Master Equation and Surface Hopping to Evolve Distributions of Quantum Particles. J Phys Chem B 2020; 124:4326-4337. [DOI: 10.1021/acs.jpcb.0c03030] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yi-Siang Wang
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Parmeet Nijjar
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Xin Zhou
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
- College of Environment and Chemical Engineering, Dalian University, Dalian 116622, P. R. China
| | - Denys I. Bondar
- Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, United States
| | - Oleg V. Prezhdo
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
- Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089, United States
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21
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Hume PA, Hodgkiss JM. A Projective Method for the Calculation of Excited-State Electronic Coupling: Isolating Charge Transfer/Recombination Processes in Organic Photovoltaics. J Phys Chem A 2020; 124:591-600. [PMID: 31877043 DOI: 10.1021/acs.jpca.9b10167] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Electronic coupling between excited states is a vital parameter required to describe ultrafast energy and charge transfer processes that occur in photoresponsive organic materials. In such systems, short-range Coulombic, exchange, overlap, and configuration interaction effects must all be accounted for. Although a number of methods are available, the evaluation of coupling between arbitrary excited states remains challenging. In this contribution, a flexible and scalable method for the calculation of short-range electronic coupling between excited states is developed. Excitation- or charge-localized states are projected onto the adiabatic states of a dimeric molecular system using an efficient wave function overlap algorithm. In addition to correctly treating Coulombic, exchange, and overlap contributions, the inclusion of multistate interactions is inherent in the procedure. The method is then used to disentangle excitation energy transfer, charge transfer, and charge recombination processes in donor/acceptor systems relevant to organic photovoltaics, with a view toward the development of material design principles. Calculations were performed within single-excitation frameworks, but the scheme has the potential to be extended to multireference/higher-order excitation quantum-chemical methods.
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Affiliation(s)
- Paul A Hume
- 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
| | - 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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22
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Lyu G, Kendall J, Meazzini I, Preis E, Bayseç S, Scherf U, Clément S, Evans RC. Luminescent Solar Concentrators Based on Energy Transfer from an Aggregation-Induced Emitter Conjugated Polymer. ACS APPLIED POLYMER MATERIALS 2019; 1:3039-3047. [PMID: 31737866 PMCID: PMC6849335 DOI: 10.1021/acsapm.9b00718] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 09/19/2019] [Indexed: 05/28/2023]
Abstract
Luminescent solar concentrators (LSCs) are solar-harvesting devices fabricated from a transparent waveguide that is doped or coated with lumophores. Despite their potential for architectural integration, the optical efficiency of LSCs is often limited by incomplete harvesting of solar radiation and aggregation-caused quenching (ACQ) of lumophores in the solid state. Here, we demonstrate a multilumophore LSC design that circumvents these challenges through a combination of nonradiative Förster resonance energy transfer (FRET) and aggregation-induced emission (AIE). The LSC incorporates a green-emitting poly(tetraphenylethylene), p-O-TPE, as an energy donor and a red-emitting perylene bisimide molecular dye (PDI-Sil) as the energy acceptor, within an organic-inorganic hybrid diureasil waveguide. Steady-state photoluminescence studies demonstrate the diureasil host induced AIE from the p-O-PTE donor polymer, leading to a high photoluminescence quantum yield (PLQY) of ∼45% and a large Stokes shift of ∼150 nm. Covalent grafting of the PDI-Sil acceptor to the siliceous domains of the diureasil waveguide also inhibits nonradiative losses by preventing molecular aggregation. Due to the excellent spectral overlap, FRET was shown to occur from p-O-TPE to PDI-Sil, which increased with acceptor concentration. As a result, the final LSC (4.5 cm × 4.5 cm × 0.3 cm) with an optimized donor-acceptor ratio (1:1 by wt %) exhibited an internal photon efficiency of 20%, demonstrating a viable design for LSCs utilizing an AIE-based FRET approach to improve the solar-harvesting performance.
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Affiliation(s)
- Guanpeng Lyu
- Department
of Materials Science and Metallurgy, University
of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
| | - James Kendall
- Department
of Materials Science and Metallurgy, University
of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
| | - Ilaria Meazzini
- Department
of Materials Science and Metallurgy, University
of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
| | - Eduard Preis
- Macromolecular
Chemistry Group (buwmakro) and Institute for Polymer Technology, Bergische Universität Wuppertal, Gausss-Strasse 20, D-42119 Wuppertal, Germany
| | - Sebnem Bayseç
- Macromolecular
Chemistry Group (buwmakro) and Institute for Polymer Technology, Bergische Universität Wuppertal, Gausss-Strasse 20, D-42119 Wuppertal, Germany
| | - Ullrich Scherf
- Macromolecular
Chemistry Group (buwmakro) and Institute for Polymer Technology, Bergische Universität Wuppertal, Gausss-Strasse 20, D-42119 Wuppertal, Germany
| | - Sébastien Clément
- Institut
Charles Gerhardt Montpellier, ICGM, UMR 5253, CNRS, Université de Montpellier, ENSCM, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Rachel C. Evans
- Department
of Materials Science and Metallurgy, University
of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
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23
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Sánchez-Resa D, Schoepff L, Djemili R, Durot S, Heitz V, Ventura B. Photophysical properties of porphyrinic covalent cages endowed with different flexible linkers. J PORPHYR PHTHALOCYA 2019. [DOI: 10.1142/s1088424619500925] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In-depth photophysical studies of four flexible covalent cages bearing either two free-base porphyrins or one free-base porphyrin and one Zn(II) porphyrin, connected by linkers of different lengths, are reported. In the case of the cages with two free-base porphyrins, exciton coupling between the porphyrins is evidenced by large and split Soret bands in the absorption spectra, but the different length of the linkers has only a slight effect on their emission properties. Strong electronic interactions between the porphyrins are also evidenced for the cages that incorporate a free-base porphyrin and a Zn(II) porphyrin, with a more pronounced splitting of the Soret band for the system with longer linkers. In these cages, following excitation of the Zn-porphyrin component, an almost quantitative energy transfer to the free-base unit occurs, with a rate 1.4 times faster in the cage with longer linkers (1.4 × 10[Formula: see text] s[Formula: see text] vs. 1.0 × 10[Formula: see text] s[Formula: see text]. This difference might reflect the more flattened conformation adopted by the cage equipped with longer and more flexible linkers, the latter allowing for a shorter interplanar distance between the porphyrins. The results are discussed in terms of classical and short-range energy transfer mechanisms.
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Affiliation(s)
| | - Laetitia Schoepff
- Laboratoire de Synthèse des Assemblages Moléculaires Multifonctionnels, Institut de Chimie de Strasbourg, CNRS/UMR 7177, Université de Strasbourg, 4, Rue Blaise Pascal, 67000 Strasbourg, France
| | - Ryan Djemili
- Laboratoire de Synthèse des Assemblages Moléculaires Multifonctionnels, Institut de Chimie de Strasbourg, CNRS/UMR 7177, Université de Strasbourg, 4, Rue Blaise Pascal, 67000 Strasbourg, France
| | - Stéphanie Durot
- Laboratoire de Synthèse des Assemblages Moléculaires Multifonctionnels, Institut de Chimie de Strasbourg, CNRS/UMR 7177, Université de Strasbourg, 4, Rue Blaise Pascal, 67000 Strasbourg, France
| | - Valérie Heitz
- Laboratoire de Synthèse des Assemblages Moléculaires Multifonctionnels, Institut de Chimie de Strasbourg, CNRS/UMR 7177, Université de Strasbourg, 4, Rue Blaise Pascal, 67000 Strasbourg, France
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24
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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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25
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Cupellini L, Corbella M, Mennucci B, Curutchet C. Electronic energy transfer in biomacromolecules. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2018. [DOI: 10.1002/wcms.1392] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Lorenzo Cupellini
- Dipartimento di Chimica e Chimica Industriale University of Pisa Pisa Italy
| | - Marina Corbella
- Departament de Farmàcia i Tecnologia Farmacèutica i Fisicoquímica and Institut de Química Teòrica i Computacional (IQTC‐UB), Facultat de Farmàcia i Ciències de l'Alimentació Universitat de Barcelona Barcelona Spain
| | - Benedetta Mennucci
- Dipartimento di Chimica e Chimica Industriale University of Pisa Pisa Italy
| | - Carles Curutchet
- Departament de Farmàcia i Tecnologia Farmacèutica i Fisicoquímica and Institut de Química Teòrica i Computacional (IQTC‐UB), Facultat de Farmàcia i Ciències de l'Alimentació Universitat de Barcelona Barcelona Spain
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26
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Abstract
Resonance energy transfer (RET) is a complex phenomenon where energy is transferred between two nonequivalent molecules. In the Förster picture, that applies to the weak coupling regime, RET occurs from the energy donor molecule in the relaxed excited state toward the acceptor, in an energy-conserving process. However, energy dissipation is crucial for a more general picture of RET that also applies to the strong coupling regime. Here we present a dynamical, nonadiabatic model for RET also accounting for energy relaxation. We exploit the essential state formalism to set up a model for the RET pair that yields an accurate picture of the relevant physics, accounting for just a few electronic states and a single coupled vibrational coordinate per molecule. Molecular vibrations are treated in a nonadiabatic approach, and energy dissipation is dealt within the Redfield formalism. The approach is first validated on an isolated dye, demonstrating that a very simple relaxation model, defined in terms of a single relaxation parameter, properly describes the different regimes of energy dissipation expected for a molecule, with a fast (fs time window) internal conversion to the lowest excited state and a slow relaxation toward the ground state (ns time window). The same approach is then applied to follow the real time dynamics of a RET pair. In line with the Förster model, in the weak coupling regime the internal conversion of the donor molecule is completed before energy transfer takes place. Our approach also applies to the strong coupling regime, where we observe ultrafast energy transfer occurring well before the internal relaxation of the energy donor is completed.
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Affiliation(s)
- Francesco Di Maiolo
- Department of Chemistry, Life Science and Environmental Sustainability , Università di Parma , 43124 Parma , Italy
| | - Anna Painelli
- Department of Chemistry, Life Science and Environmental Sustainability , Università di Parma , 43124 Parma , Italy
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27
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Mandal S, Garcia Iglesias M, Ince M, Torres T, Tkachenko NV. Photoinduced Energy Transfer in ZnCdSeS Quantum Dot-Phthalocyanines Hybrids. ACS OMEGA 2018; 3:10048-10057. [PMID: 31459133 PMCID: PMC6644917 DOI: 10.1021/acsomega.8b01623] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 08/10/2018] [Indexed: 05/16/2023]
Abstract
In this article, interaction between ZnCdSeS quantum dot (QD) and phthalocyanines with variable linker has been reported. Steady-state and time-resolved spectroscopic investigation reveals that only photoinduced energy transfer occurs from QD to phthalocyanines. To evaluate quantitatively the energy transfer, the Poisson statistics of QD-dye complex formation was used in the analysis of steady-state and time-resolved emission quenching, which allows to estimate the energy transfer rate constant for an ideal one-to-one complex. The measured rate constants are compared to the rates evaluated based on the classic Förster theory, which shows roughly 1 nm discrepancy in the energy transfer distance estimation, or one order in magnitude discrepancy in the transfer rate constants.
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Affiliation(s)
- Sadananda Mandal
- Laboratory
of Chemistry and Bioengineering, Tampere
University of Technology, P. O. Box 541, 33101 Tampere, Finland
| | - Miguel Garcia Iglesias
- Departamento
de Química Orgánica, Universidad
Autónoma de Madrid, Cantoblanco, E-28049 Madrid, Spain
- IMDEA-Nanociencia, C/Faraday, 9, Cantoblanco, 28049 Madrid, Spain
| | - Mine Ince
- Advanced
Technology Research & Application Center, Mersin University, Ciftlikkoy Campus, TR-33343 Mersin, Turkey
- Department
of Energy Systems Engineering, Faculty of Tarsus Technology, Mersin University, 33480 Mersin, Turkey
| | - Tomás Torres
- Departamento
de Química Orgánica, Universidad
Autónoma de Madrid, Cantoblanco, E-28049 Madrid, Spain
- IMDEA-Nanociencia, C/Faraday, 9, Cantoblanco, 28049 Madrid, Spain
- Institute
for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Nikolai V. Tkachenko
- Laboratory
of Chemistry and Bioengineering, Tampere
University of Technology, P. O. Box 541, 33101 Tampere, Finland
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28
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Lissau JS, Viñas Muñoz A, Gotfredsen H, Jevric M, Nielsen MB, Sølling TI. Conformational Impact on Energy Storage Efficiency of Subphthalocyanine-Fullerene Hybrids. J Phys Chem A 2018; 122:6683-6692. [PMID: 30041520 DOI: 10.1021/acs.jpca.8b06064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Hybrid molecules involving subphthalocyanine and Buckminsterfullerene derivatives are interesting candidates as heavy metal free triplet sensitizers. Subphthalocyanine efficiently absorbs visible photons and transfer the singlet excited state energy to the Buckminsterfullerene where intersystem crossing produces triplet states in high yield. Thus, far the efficiency of the triplet-generating photophysics in these systems has been hampered by back energy transfer to the subphthalocyanine triplet state resulting in loss of excitation energy. Herein an efficient strategy is realized to avoid loss of triplet energy by back energy transfer. A hybrid molecule based on subphthalocyanine and Buckminsterfullerene is presented in which dispersion-induced π-π interactions result in a molecular geometry where highly efficient through-space singlet excited state energy transfer takes place in one direction, whereas energy flow in the opposite direction via the triplet manifold is blocked by lack of orbital overlap. The approach opens for a new class of heavy-metal-free triplet sensitizers of particular relevance to the fields of photodynamic therapy and noncoherent photon upconversion.
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Affiliation(s)
- Jonas Sandby Lissau
- Department of Chemistry , University of Copenhagen , DK-2100 Copenhagen Ø , Denmark
| | - Alberto Viñas Muñoz
- Department of Chemistry , University of Copenhagen , DK-2100 Copenhagen Ø , Denmark
| | - Henrik Gotfredsen
- Department of Chemistry , University of Copenhagen , DK-2100 Copenhagen Ø , Denmark
| | - Martyn Jevric
- Department of Chemistry , University of Copenhagen , DK-2100 Copenhagen Ø , Denmark
| | | | - Theis I Sølling
- Department of Chemistry , University of Copenhagen , DK-2100 Copenhagen Ø , Denmark
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29
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Ziessel R, Stachelek P, Harriman A, Hedley GJ, Roland T, Ruseckas A, Samuel IDW. Ultrafast Through-Space Electronic Energy Transfer in Molecular Dyads Built around Dynamic Spacer Units. J Phys Chem A 2018; 122:4437-4447. [DOI: 10.1021/acs.jpca.8b02415] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Raymond Ziessel
- Molecular Photonics Laboratory, School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Patrycja Stachelek
- Molecular Photonics Laboratory, School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Anthony Harriman
- Molecular Photonics Laboratory, School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Gordon J. Hedley
- Organic Semiconductor Centre, SUPA, School of Physics & Astronomy, Physical Science Building, University of St. Andrews, North Haugh, St Andrews KY16 9SS, United Kingdom
| | - Thomas Roland
- Organic Semiconductor Centre, SUPA, School of Physics & Astronomy, Physical Science Building, University of St. Andrews, North Haugh, St Andrews KY16 9SS, United Kingdom
| | - Arvydas Ruseckas
- Organic Semiconductor Centre, SUPA, School of Physics & Astronomy, Physical Science Building, University of St. Andrews, North Haugh, St Andrews KY16 9SS, United Kingdom
| | - Ifor D. W. Samuel
- Organic Semiconductor Centre, SUPA, School of Physics & Astronomy, Physical Science Building, University of St. Andrews, North Haugh, St Andrews KY16 9SS, United Kingdom
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30
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Sanyal S, Painelli A, Pati SK, Terenziani F, Sissa C. Aggregates of quadrupolar dyes for two-photon absorption: the role of intermolecular interactions. Phys Chem Chem Phys 2018; 18:28198-28208. [PMID: 27722590 DOI: 10.1039/c6cp05153g] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
We present a theoretical investigation of small aggregates of quadrupolar (A-π-D-π-A or D-π-A-π-D) charge-transfer dyes, with attention focused on the role of intermolecular interactions in determining their optical properties. We tackle the theoretical issue by adopting essential-state models (ESMs), which describe an isolated molecule in terms of a minimal number of electronic states, corresponding to the resonance structures. ESMs quite naturally describe intermolecular interactions relaxing the dipolar approximation and accounting for molecular polarizabilities. The approach is applied to curcuminoid and squaraine dyes, two families of chromophores with weak and strong quadrupolar character, respectively. The method is validated against experiment and for curcuminoids also against time-dependent density functional theory. ESMs rationalize the strong ultra-excitonic effects recurrently observed in the experimental optical spectra of aggregates of highly polarizable quadrupolar dyes, offering a valuable tool to exploit the supramolecular design of material properties.
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Affiliation(s)
- S Sanyal
- Dipartimento di Chimica, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - A Painelli
- Dipartimento di Chimica, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - S K Pati
- Theoretical Sciences Unit and New Chemistry Unit, JNCASR, Jakkur P. O., Bangalore 560064, India
| | - F Terenziani
- Dipartimento di Chimica, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - C Sissa
- Dipartimento di Chimica, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
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31
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Sobakinskaya E, Schmidt am Busch M, Renger T. Theory of FRET "Spectroscopic Ruler" for Short Distances: Application to Polyproline. J Phys Chem B 2018; 122:54-67. [PMID: 29189003 PMCID: PMC5767878 DOI: 10.1021/acs.jpcb.7b09535] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 11/27/2017] [Indexed: 12/12/2022]
Abstract
Förster resonance energy transfer (FRET) is an important mechanism for the estimation of intermolecular distances, e.g., in fluorescent labeled proteins. The interpretations of FRET experiments with standard Förster theory relies on the following approximations: (i) a point-dipole approximation (PDA) for the coupling between transition densities of the chromophores, (ii) a screening of this coupling by the inverse optical dielectric constant of the medium, and (iii) the assumption of fast isotropic sampling over the mutual orientations of the chromophores. These approximations become critical, in particular, at short intermolecular distances, where the PDA and the screening model become invalid and the variation of interchromophore distances, and not just orientations, has a critical influence on the excitation energy transfer. Here, we present a quantum chemical/electrostatic/molecular dynamics (MD) method that goes beyond all of the above approximations. The Poisson-TrEsp method for the ab initio/electrostatic calculation of excitonic couplings in a dielectric medium is combined with all-atom molecular dynamics (MD) simulations to calculate FRET efficiencies. The method is applied to analyze single-molecule experiments on a polyproline helix of variable length labeled with Alexa dyes. Our method provides a quantitative explanation of the overestimation of FRET efficiencies by the standard Förster theory for short interchromophore distances for this system. A detailed analysis of the different levels of approximation that connect the present Poisson-TrEsp/MD method with Förster theory reveals error compensation effects, between the PDA and the neglect of correlations in interchromophore distances and orientations on one hand and the neglect of static disorder in orientations and interchromophore distances on the other. Whereas the first two approximations are found to decrease the FRET efficiency, the latter two overcompensate this decrease and are responsible for the overestimation of the FRET efficiency by Förster theory.
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Affiliation(s)
- Ekaterina Sobakinskaya
- Institut für Theoretische
Physik, Johannes Kepler Universität
Linz, Altenberger Str.
69, 4040 Linz, Austria
| | - Marcel Schmidt am Busch
- Institut für Theoretische
Physik, Johannes Kepler Universität
Linz, Altenberger Str.
69, 4040 Linz, Austria
| | - Thomas Renger
- Institut für Theoretische
Physik, Johannes Kepler Universität
Linz, Altenberger Str.
69, 4040 Linz, Austria
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32
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Study on the Fluorescent Activity of N²-Indolyl-1,2,3-triazole. Molecules 2017; 22:molecules22091380. [PMID: 28872608 PMCID: PMC6151483 DOI: 10.3390/molecules22091380] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 08/08/2017] [Accepted: 08/15/2017] [Indexed: 12/22/2022] Open
Abstract
A new type of blue emitter, N2-Indolyl-1,2,3-triazoles (NITs), with the λmax ranging from 420–480 nm and the Stokes shift from 89–143 nm, were synthesized through the coupling reaction of indoles with triazole derivatives. The influence of different substitution patterns on the optical properties (efficiency, excitation, and emission wavelengths) of the NITs was investigated. In addition, one palladium complex were synthesized by using NITs as the ligands, which, however, exhibited no fluorescent activity, but did show the enhanced co-planarity. Lastly, two bio-active molecule derivatives were explored for the potential use of these novel dyes in related chemical and biological applications.
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33
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Fujimoto KJ, Balashov SP. Vibronic coupling effect on circular dichroism spectrum: Carotenoid–retinal interaction in xanthorhodopsin. J Chem Phys 2017. [DOI: 10.1063/1.4977045] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Affiliation(s)
- Kazuhiro J. Fujimoto
- Faculty of Pharmaceutical Sciences, Hokuriku University, Ho-3 Kanagawa-machi, Kanazawa 920-1181, Japan
| | - Sergei P. Balashov
- Department of Physiology and Biophysics, University of California, Irvine, California 92697, USA
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34
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Dutta R, Bagchi B. Effects of dynamic disorder on exciton migration: Quantum diffusion, coherences, and energy transfer. J Chem Phys 2016; 145:164907. [DOI: 10.1063/1.4966035] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Rajesh Dutta
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560012, India
| | - Biman Bagchi
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560012, India
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35
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Kuchlyan J, Kundu N, sarkar N. Ionic liquids in microemulsions: Formulation and characterization. Curr Opin Colloid Interface Sci 2016. [DOI: 10.1016/j.cocis.2016.05.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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36
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Houston JE, Kraft M, Mooney I, Terry AE, Scherf U, Evans RC. Charge-Mediated Localization of Conjugated Polythiophenes in Zwitterionic Model Cell Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:8141-8153. [PMID: 27434827 DOI: 10.1021/acs.langmuir.6b01828] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The selective engineering of conjugated polyelectrolyte (CPE)-phospholipid interfaces is poised to play a key role in the design of advanced biomedical and biotechnological devices. Herein, we report a strategic study to investigate the relationship between the charge of the CPE side group and their association with zwitterionic phospholipid bilayers. The interaction of dipalmitoylphosphatidylcholine (DPPC) phospholipid vesicles with a series of poly(thiophene)s bearing zwitterionic, cationic, or anionic terminal groups (P3Zwit, P3TMAHT and P3Anionic, respectively) has been probed. Although all CPEs showed an affinity for the zwitterionic vesicles, the calculated partition coefficients determined using photoluminescence spectroscopy suggested preferential incorporation within the lipid bilayer in the order P3Zwit > P3Anionic ≫ P3TMAHT. The polarity probe Prodan was used to further qualify the position of the CPE inside the vesicle bilayers via Förster resonance energy transfer (FRET) studies. The varying proximity of the CPEs to Prodan was reflected in the Stern-Volmer quenching constants and decreased in the order P3Anionic > P3TMAHT ≫ P3Zwit. Dynamic light scattering measurements showed an increase in the hydrodynamic diameter of the DPPC vesicles upon addition of each poly(thiophene), but to the greatest extent for P3Anionic. Small-angle neutron scattering studies also revealed that P3Anionic specifically increased the thickness of the headgroup region of the phospholipid bilayer. Epifluorescence and atomic force microscopy imaging showed that P3TMAHT formed amorphous agglomerates on the vesicle surface, P3Zwit was buried throughout the bilayer, and P3Anionic formed a shell of protruding chains around the surface, which promoted vesicle fusion. The global data indicate three distinctive modes of interaction for the poly(thiophene)s within DPPC vesicles, whereby the nature of the association is ultimately controlled by the pendant charge group on each CPE chain. Our results suggest that charge-mediated self-assembly may provide a simple and effective route to design luminescent CPE probes capable of specific localization within phospholipid membranes.
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Affiliation(s)
- Judith E Houston
- School of Chemistry and CRANN, University of Dublin, Trinity College , College Green, Dublin 2, Ireland
| | - Mario Kraft
- Macromolecular Chemistry Group (Buwmakro) and Institute for Polymer Technology, Bergische Universität Wuppertal , Gauss-Str. 20, D-42119 Wuppertal, Germany
| | - Ian Mooney
- School of Chemistry and CRANN, University of Dublin, Trinity College , College Green, Dublin 2, Ireland
| | - Ann E Terry
- ISIS, STFC, Rutherford Appleton Laboratory, Didcot, Oxon OX11 0QX, U.K
| | - Ullrich Scherf
- Macromolecular Chemistry Group (Buwmakro) and Institute for Polymer Technology, Bergische Universität Wuppertal , Gauss-Str. 20, D-42119 Wuppertal, Germany
| | - Rachel C Evans
- School of Chemistry and CRANN, University of Dublin, Trinity College , College Green, Dublin 2, Ireland
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37
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Prajapati R, Chatterjee S, Kannaujiya KK, Mukherjee TK. Effect of compartmentalization of donor and acceptor on the ultrafast resonance energy transfer from DAPI to silver nanoclusters. NANOSCALE 2016; 8:13006-13016. [PMID: 27304093 DOI: 10.1039/c6nr01792d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The mechanism and dynamics of excitation energy transfer (EET) from photo-excited 4',6-diamidino-2-phenylindole (DAPI) to silver nanoclusters (Ag NCs) and its subsequent modulation in the presence of cationic polymer poly(diallyldimethylammonium chloride) (PDADMAC) and Calf Thymus DNA (CT-DNA) have been demonstrated using steady-state fluorescence and femtosecond fluorescence upconversion techniques. The synthesized Ag NCs were characterized using FTIR, mass spectrometry, XPS, HRTEM, DLS, UV-Vis and PL spectroscopy. Mass spectrometric analysis reveals the formation of ultrasmall Ag4 NCs with a small amount of Ag5 NCs. UV-Vis and PL spectra reveal distinct molecular-like optoelectronic behaviour of these ultrasmall Ag NCs. The dihydrolipoic acid-capped Ag NCs strongly quench the fluorescence of DAPI with concomitant increase in its photoluminescence (PL) intensity at 675 nm. This steady-state fluorescence quenching proceeds with a significant shortening of the fluorescence lifetime of DAPI in the presence of Ag NCs, signifying the nonradiative Förster resonance energy transfer (FRET) from DAPI to Ag NCs. Various energy transfer parameters have been estimated from FRET theory. The present FRET pair shows a characteristic Förster distance of 2.45 nm and can be utilized as a reporter of short-range distances in various FRET based applications. Moreover, this nonradiative FRET is completely suppressed in the presence of both 0.2 wt% PDADMAC and CT-DNA. Our results reveal selective compartmentalization of Ag NCs and DAPI in the presence of 0.2 wt% PDADMAC and CT-DNA, respectively. This selective compartmentalization of donor and acceptor and the subsequent modification of the FRET process may find application in various sensing, photovoltaic, and light harvesting applications.
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Affiliation(s)
- Roopali Prajapati
- Discipline of Chemistry, Indian Institute of Technology Indore, Simrol Campus, Khandwa Road, Indore-453552, M.P., India.
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38
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Stehr V, Fink RF, Deibel C, Engels B. Charge carrier mobilities in organic semiconductor crystals based on the spectral overlap. J Comput Chem 2016; 37:2146-56. [DOI: 10.1002/jcc.24441] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 06/10/2016] [Accepted: 06/13/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Vera Stehr
- Institut für Physikalische und Theoretische Chemie, Universität Würzburg; Würzburg 97074 Germany
| | - Reinhold F. Fink
- Institut für Physikalische und Theoretische Chemie, Universität Tübingen; Tübingen 72076 Germany
| | - Carsten Deibel
- Institut für Physik, Technische Universität Chemnitz; Chemnitz 09126 Germany
| | - Bernd Engels
- Institut für Physikalische und Theoretische Chemie, Universität Würzburg; Würzburg 97074 Germany
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39
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Stehr V, Fink RF, Tafipolski M, Deibel C, Engels B. Comparison of different rate constant expressions for the prediction of charge and energy transport in oligoacenes. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2016. [DOI: 10.1002/wcms.1273] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- V. Stehr
- Institut für Physikalische und Theoretische Chemie; Universität Würzburg; Würzburg Germany
| | - R. F. Fink
- Institut für Physikalische und Theoretische Chemie; Universität Tübingen; Tübingen Germany
| | - M. Tafipolski
- Institut für Physikalische und Theoretische Chemie; Universität Würzburg; Würzburg Germany
| | - C. Deibel
- Institut für Physik; Technische Universität Chemnitz; Chemnitz Germany
| | - B. Engels
- Institut für Physikalische und Theoretische Chemie; Universität Würzburg; Würzburg Germany
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40
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Zhang Q, Zhang C, Cao L, Wang Z, An B, Lin Z, Huang R, Zhang Z, Wang C, Lin W. Förster Energy Transport in Metal–Organic Frameworks Is Beyond Step-by-Step Hopping. J Am Chem Soc 2016; 138:5308-15. [DOI: 10.1021/jacs.6b01345] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Qiongqiong Zhang
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Cankun Zhang
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Lingyun Cao
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Zi Wang
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Bing An
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Zekai Lin
- Department
of Chemistry, University of Chicago, 929 E 57th Street, Chicago, Illinois 60637, United States
| | - Ruiyun Huang
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Zhiming Zhang
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Cheng Wang
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Wenbin Lin
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
- Department
of Chemistry, University of Chicago, 929 E 57th Street, Chicago, Illinois 60637, United States
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41
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Abstract
The design of optimal light-harvesting (supra)molecular systems and materials is one of the most challenging frontiers of science. Theoretical methods and computational models play a fundamental role in this difficult task, as they allow the establishment of structural blueprints inspired by natural photosynthetic organisms that can be applied to the design of novel artificial light-harvesting devices. Among theoretical strategies, the application of quantum chemical tools represents an important reality that has already reached an evident degree of maturity, although it still has to show its real potentials. This Review presents an overview of the state of the art of this strategy, showing the actual fields of applicability but also indicating its current limitations, which need to be solved in future developments.
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Affiliation(s)
- Carles Curutchet
- Departament de Fisicoquímica, Facultat de Farmàcia, Universitat de Barcelona , Av. Joan XXIII s/n, 08028 Barcelona, Spain
| | - Benedetta Mennucci
- Dipartimento di Chimica e Chimica Industriale, University of Pisa , via G. Moruzzi 13, 56124 Pisa, Italy
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42
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Kenny EP, Kassal I. Benchmarking Calculations of Excitonic Couplings between Bacteriochlorophylls. J Phys Chem B 2015; 120:25-32. [DOI: 10.1021/acs.jpcb.5b08817] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Elise P. Kenny
- Centre
for Engineered Quantum
Systems, Centre for Quantum Computation and Communication Technology,
and School of Mathematics and Physics, The University of Queensland, Brisbane QLD 4072, Australia
| | - Ivan Kassal
- Centre
for Engineered Quantum
Systems, Centre for Quantum Computation and Communication Technology,
and School of Mathematics and Physics, The University of Queensland, Brisbane QLD 4072, Australia
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43
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Roy A, Kundu N, Banik D, Sarkar N. Comparative Fluorescence Resonance Energy-Transfer Study in Pluronic Triblock Copolymer Micelle and Niosome Composed of Biological Component Cholesterol: An Investigation of Effect of Cholesterol and Sucrose on the FRET Parameters. J Phys Chem B 2015; 120:131-42. [PMID: 26672631 DOI: 10.1021/acs.jpcb.5b09761] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Arpita Roy
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Niloy Kundu
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Debasis Banik
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Nilmoni Sarkar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
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44
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Hedley GJ, Ruseckas A, Benniston AC, Harriman A, Samuel IDW. Ultrafast Electronic Energy Transfer Beyond the Weak Coupling Limit in a Proximal but Orthogonal Molecular Dyad. J Phys Chem A 2015; 119:12665-71. [DOI: 10.1021/acs.jpca.5b08640] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gordon J. Hedley
- Organic
Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9SS, U.K
| | - Arvydas Ruseckas
- Organic
Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9SS, U.K
| | - Andrew C. Benniston
- Molecular
Photonics Laboratory, School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, U.K
| | - Anthony Harriman
- Molecular
Photonics Laboratory, School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, U.K
| | - Ifor D. W. Samuel
- Organic
Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9SS, U.K
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45
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Ultrafast Chemical Dynamics in Time Domain Through Fluorescence Spectroscopy. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES 2015. [DOI: 10.1007/s40010-015-0250-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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46
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Chevrier M, Kesters J, Blayo C, Richeter S, Van Der Lee A, Coulembier O, Surin M, Mehdi A, Lazzaroni R, Evans RC, Maes W, Dubois P, Clément S. Regioregular Polythiophene-Porphyrin Supramolecular Copolymers for Optoelectronic Applications. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500280] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Michèle Chevrier
- Institut Charles Gerhardt; Université de Montpellier; Place Eugène Bataillon 34095 Montpellier Cedex 05 France
- Laboratory of Polymeric and Composites Materials; Center for Innovation in Materials and Polymers; Research Institute for Science and Engineering of Materials; University of Mons-UMONS; 23 Place du Parc B-7000 Mons Belgium
| | - Jurgen Kesters
- Institute for Materials Research (IMO); Design & Synthesis of Organic Semiconductors (DSOS); Hasselt University; Agoralaan 1-Building D B-3590 Diepenbeek Belgium
| | - Camille Blayo
- School of Chemistry; Trinity College Dublin; The University of Dublin; Dublin 2 Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN); Trinity College Dublin; The University of Dublin; Dublin 2 Ireland
| | - Sébastien Richeter
- Institut Charles Gerhardt; Université de Montpellier; Place Eugène Bataillon 34095 Montpellier Cedex 05 France
| | - Arie Van Der Lee
- Institut Européen des Membranes; CNRS - UMR 5635; Université de Montpellier; Place Eugène Bataillon 34095 Montpellier Cedex 05 France
| | - Olivier Coulembier
- Laboratory of Polymeric and Composites Materials; Center for Innovation in Materials and Polymers; Research Institute for Science and Engineering of Materials; University of Mons-UMONS; 23 Place du Parc B-7000 Mons Belgium
| | - Mathieu Surin
- Laboratory for Chemistry of Novel Materials; Center for Innovation in Materials and Polymers; Research Institute for Science and Engineering of Materials; University of Mons-UMONS; 23 Place du Parc B-7000 Mons Belgium
| | - Ahmad Mehdi
- Institut Charles Gerhardt; Université de Montpellier; Place Eugène Bataillon 34095 Montpellier Cedex 05 France
| | - Roberto Lazzaroni
- Laboratory for Chemistry of Novel Materials; Center for Innovation in Materials and Polymers; Research Institute for Science and Engineering of Materials; University of Mons-UMONS; 23 Place du Parc B-7000 Mons Belgium
| | - Rachel C. Evans
- School of Chemistry; Trinity College Dublin; The University of Dublin; Dublin 2 Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN); Trinity College Dublin; The University of Dublin; Dublin 2 Ireland
| | - Wouter Maes
- Institute for Materials Research (IMO); Design & Synthesis of Organic Semiconductors (DSOS); Hasselt University; Agoralaan 1-Building D B-3590 Diepenbeek Belgium
| | - Philippe Dubois
- Laboratory of Polymeric and Composites Materials; Center for Innovation in Materials and Polymers; Research Institute for Science and Engineering of Materials; University of Mons-UMONS; 23 Place du Parc B-7000 Mons Belgium
| | - Sébastien Clément
- Institut Charles Gerhardt; Université de Montpellier; Place Eugène Bataillon 34095 Montpellier Cedex 05 France
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47
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Cruz CD, Christensen PR, Chronister EL, Casanova D, Wolf MO, Bardeen CJ. Sulfur-Bridged Terthiophene Dimers: How Sulfur Oxidation State Controls Interchromophore Electronic Coupling. J Am Chem Soc 2015; 137:12552-64. [DOI: 10.1021/jacs.5b05457] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Chad D. Cruz
- Department
of Chemistry, University of California Riverside, 501 Big Springs Road, Riverside, California 92521, United States
| | - Peter R. Christensen
- Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1 Canada
| | - Eric L. Chronister
- Department
of Chemistry, University of California Riverside, 501 Big Springs Road, Riverside, California 92521, United States
| | - David Casanova
- Kimika Facultatea, Euskal Herriko Unibertsitatea (UPV/EHU), Donostia International Physics Center, P.K: 1072, Donostia 20080, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, Euskadi 48013, Spain
| | - Michael O. Wolf
- Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1 Canada
| | - Christopher J. Bardeen
- Department
of Chemistry, University of California Riverside, 501 Big Springs Road, Riverside, California 92521, United States
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48
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Abstract
Recent experiments aimed at probing the dynamics of excitons have revealed that semiconducting films composed of disordered molecular subunits, unlike expectations for their perfectly ordered counterparts, can exhibit a time-dependent diffusivity in which the effective early time diffusion constant is larger than that of the steady state. This observation has led to speculation about what role, if any, microscopic disorder may play in enhancing exciton transport properties. In this article, we present the results of a model study aimed at addressing this point. Specifically, we introduce a general model, based upon Förster theory, for incoherent exciton diffusion in a material composed of independent molecular subunits with static energetic disorder. Energetic disorder leads to heterogeneity in molecule-to-molecule transition rates, which we demonstrate has two important consequences related to exciton transport. First, the distribution of local site-specific hopping rates is broadened in a manner that results in a decrease in average exciton diffusivity relative to that in a perfectly ordered film. Second, since excitons prefer to make transitions that are downhill in energy, the steady state distribution of exciton energies is biased toward low-energy molecular subunits, those that exhibit reduced diffusivity relative to a perfectly ordered film. These effects combine to reduce the net diffusivity in a manner that is time dependent and grows more pronounced as disorder is increased. Notably, however, we demonstrate that the presence of energetic disorder can give rise to a population of molecular subunits with exciton transfer rates exceeding those of subunits in an energetically uniform material. Such enhancements may play an important role in processes that are sensitive to molecular-scale fluctuations in exciton density field.
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Affiliation(s)
- Elizabeth M Y Lee
- †Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - William A Tisdale
- †Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Adam P Willard
- ‡Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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49
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Wang J, Huang J, Du L, Lan Z. Photoinduced Ultrafast Intramolecular Excited-State Energy Transfer in the Silylene-Bridged Biphenyl and Stilbene (SBS) System: A Nonadiabatic Dynamics Point of View. J Phys Chem A 2015; 119:6937-48. [DOI: 10.1021/acs.jpca.5b00354] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jun Wang
- Key
Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy
and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 Shandong, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jing Huang
- Key
Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy
and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 Shandong, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Likai Du
- Key
Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy
and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 Shandong, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zhenggang Lan
- Key
Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy
and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 Shandong, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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50
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Harriman A. Artificial light-harvesting arrays for solar energy conversion. Chem Commun (Camb) 2015; 51:11745-56. [DOI: 10.1039/c5cc03577e] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Following natures' blueprint, the concept of artificial light-harvesting antennae is discussed in terms of sophisticated molecular arrays displaying a tailored cascade of electronic energy transfer steps.
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Affiliation(s)
- Anthony Harriman
- Molecular Photonics Laboratory
- School of Chemistry
- Bedson Building
- Newcastle University
- Newcastle upon Tyne
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