1
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Bernhardt R, Manrho M, Zablocki J, Rieland L, Lützen A, Schiek M, Meerholz K, Zhu J, Jansen TLC, Knoester J, van Loosdrecht PHM. Structural Disorder as the Origin of Optical Properties and Spectral Dynamics in Squaraine Nano-Aggregates. J Am Chem Soc 2022; 144:19372-19381. [PMID: 36240390 DOI: 10.1021/jacs.2c07064] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In contrast to regular J- and H-aggregates, thin film squaraine aggregates usually have broad absorption spectra containing both J-and H-like features, which are favorable for organic photovoltaics. Despite being successfully applied in organic photovoltaics for years, a clear interpretation of these optical properties by relating them to specific excited states and an underlying aggregate structure has not been made. In this work, by static and transient absorption spectroscopy on aggregated n-butyl anilino squaraines, we provide evidence that both the red- and blue-shifted peaks can be explained by assuming an ensemble of aggregates with intermolecular dipole-dipole resonance interactions and structural disorder deriving from the four different nearest neighbor alignments─in sharp contrast to previous association of the peaks with intermolecular charge-transfer interactions. In our model, the next-nearest neighbor dipole-dipole interactions may be negative or positive, which leads to the occurrence of J- and H-like features in the absorption spectrum. Upon femtosecond pulse excitation of the aggregated sample, a transient absorption spectrum deviating from the absorbance spectrum emerges. The deviation finds its origin in the excitation of two-exciton states by the probe pulse. The lifetime of the exciton is confirmed by the band integral dynamics, featuring a single-exponential decay with a lifetime of 205 ps. Our results disclose the aggregated structure and the origin of red- and blue-shifted peaks and explain the absence of photoluminescence in squaraine thin films. Our findings underline the important role of structural disorder of molecular aggregates for photovoltaic applications.
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Affiliation(s)
- Robin Bernhardt
- II. Institute of Physics, University of Cologne, Zülpicher Str. 77, D-50937 Cologne, Germany
| | - Marìck Manrho
- Zernike Insitute for Advanced Materials, University of Groningen, Nijenborgh 4, NL-9747 AG Groningen, Netherlands
| | - Jennifer Zablocki
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Str. 1, D-53121 Bonn, Germany
| | - Lukas Rieland
- II. Institute of Physics, University of Cologne, Zülpicher Str. 77, D-50937 Cologne, Germany
| | - Arne Lützen
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Str. 1, D-53121 Bonn, Germany
| | - Manuela Schiek
- Institute of Physics, University of Oldenburg, Carl-von-Ossietzky-Str. 9-11, D-26129 Oldenburg, Germany.,LIOS & ZONA, Johannes Kepler University, Altenbergerstr. 69, A-4040 Linz, Austria.,Department of Chemistry, University of Cologne, Greinstr. 4-6, D-50939 Cologne, Germany
| | - Klaus Meerholz
- Department of Chemistry, University of Cologne, Greinstr. 4-6, D-50939 Cologne, Germany
| | - Jingyi Zhu
- II. Institute of Physics, University of Cologne, Zülpicher Str. 77, D-50937 Cologne, Germany.,State Key Laboratory of Molecular Reaction Dynamics and Dynamics Research Centre for Energy and Environmental Materials, Dalian Institute of Chemical Physics, 116023 Dalian, China
| | - Thomas L C Jansen
- Zernike Insitute for Advanced Materials, University of Groningen, Nijenborgh 4, NL-9747 AG Groningen, Netherlands
| | - Jasper Knoester
- Zernike Insitute for Advanced Materials, University of Groningen, Nijenborgh 4, NL-9747 AG Groningen, Netherlands.,Faculty of Science, Leiden University, Einsteinweg 55, NL-2300 RA Leiden, Netherlands
| | - Paul H M van Loosdrecht
- II. Institute of Physics, University of Cologne, Zülpicher Str. 77, D-50937 Cologne, Germany
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2
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Bolzonello L, Fassioli F, Collini E. Correlated Fluctuations and Intraband Dynamics of J-Aggregates Revealed by Combination of 2DES Schemes. J Phys Chem Lett 2016; 7:4996-5001. [PMID: 27973862 PMCID: PMC5165657 DOI: 10.1021/acs.jpclett.6b02433] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 11/22/2016] [Indexed: 05/22/2023]
Abstract
The intraband exciton dynamics of molecular aggregates is a crucial initial step to determine the possibly coherent nature of energy transfer and its implications for the ensuing interband relaxation pathways in strongly coupled excitonic systems. In this work, we fully characterize the intraband dynamics in linear J-aggregates of porphyrins, good model systems for multichromophoric assemblies in biological antenna complexes. Using different 2D electronic spectroscopy schemes together with Raman spectroscopy and theoretical modeling, we provide a full characterization of the inner structure of the main one-exciton band of the porphyrin aggregates. We find that the redistribution of population within the band occurs with a characteristic time of 280 fs and dominates the modulation of an electronic coherence. While we do not find that the coupling to vibrations significantly affects the dynamics of excitonic coherence, our results suggest that exciton fluctuations are nevertheless highly correlated.
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Affiliation(s)
- Luca Bolzonello
- Department
of Chemical Sciences, University of Padova, Via Marzolo 1, Padova 35131, Italy
| | - Francesca Fassioli
- Department
of Physics, University of Trieste, Strada Costiera 11, Trieste 34151, Italy
- E-mail:
| | - Elisabetta Collini
- Department
of Chemical Sciences, University of Padova, Via Marzolo 1, Padova 35131, Italy
- E-mail:
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3
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Introduction to Advanced X-ray Diffraction Techniques for Polymeric Thin Films. COATINGS 2016. [DOI: 10.3390/coatings6040054] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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4
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King JT, Baiz CR, Kubarych KJ. Solvent-dependent spectral diffusion in a hydrogen bonded "vibrational aggregate". J Phys Chem A 2011; 114:10590-604. [PMID: 20831231 DOI: 10.1021/jp106142u] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Two-dimensional infrared spectroscopy (2DIR) is used to measure the viscosity-dependent spectral diffusion of a model vibrational probe, Mn(2)(CO)(10) (dimanganese decacarbonyl, DMDC), in a series of alcohols with time scales ranging from 2.67 ps in methanol to 5.33 ps in 1-hexanol. Alcohol-alkane solvent mixtures were found to produce indistinguishable linear IR spectra, while still demonstrating viscosity-dependent spectral diffusion. Using a vibrational exciton model to characterize the inhomogeneous energy landscape, several analogies emerge with multichromophoric electronic systems, such as J-aggregates and light-harvesting protein complexes. An excitonic, local vibrational mode Hamiltonian parametrized to reproduce the vibrational structure of DMDC serves as a starting point from which site energies (i.e., local carbonyl frequencies) are given Gaussian distributed disorder. The model gives excellent agreement with both the linear IR spectrum and the inhomogeneous widths extracted from 2DIR, indicating the system can be considered to be a "vibrational aggregate." This model naturally leads to exchange narrowing due to disorder-induced exciton localization, producing line widths consistent with our 1D and 2D measurements. Further, the diagonal disorder alone effectively reduces the molecular symmetry, leading to the appearance of Raman bands in the IR spectrum in accord with the measurements. Here, we show that the static inhomogeneity of the excitonic model with disorder successfully captures the essential details of the 1D spectrum while predicting the degree of IR activity of forbidden modes as well as the inhomogeneous widths and relative magnitudes of the transition moments.
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Affiliation(s)
- John T King
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, USA
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5
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Das S, Bwambok D, El-Zahab B, Monk J, de Rooy SL, Challa S, Li M, Hung FR, Baker GA, Warner IM. Nontemplated approach to tuning the spectral properties of cyanine-based fluorescent nanoGUMBOS. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:12867-76. [PMID: 20583774 PMCID: PMC2917973 DOI: 10.1021/la101463r] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Template-free controlled aggregation and spectral properties in fluorescent organic nanoparticles (FONs) is highly desirable for various applications. Herein, we report a nontemplated method for controlling the aggregation in near-infrared (NIR) cyanine-based nanoparticles derived from a group of uniform materials based on organic salts (GUMBOS). Cationic heptamethine cyanine dye 1,1',3,3,3',3'-hexamethylindotricarbocyanine (HMT) was coupled with five different anions, viz., [NTf(2)(-)], [BETI(-)], [TFPB(-)], [AOT(-)], and [TFP4B(-)], by an ion-exchange method to obtain the respective GUMBOS. The nanoGUMBOS obtained via a reprecipitation method were primarily amorphous and spherical (30-100 nm) as suggested by selected area electron diffraction (SAED) and transmission electron microscopy (TEM). The formation of tunable self-assemblies within the nanoGUMBOS was characterized using absorption and fluorescence spectroscopy in conjunction with molecular dynamics simulations. Counterion-controlled spectral properties observed in the nanoGUMBOS were attributed to variations in J/H ratios with different anions. Association with the [AOT(-)] anion afforded predominant J aggregation enabling the highest fluorescence intensity, whereas [TFP4B(-)] disabled the fluorescence due to predominant H aggregation in the nanoparticles. Analyses of the stacking angle of the cations based on molecular dynamic simulation results in [HMT][NTf(2)], [HMT][BETI], and [HMT][AOT] dispersed in water and a visual analysis of the representative simulation snapshots also imply that the type of aggregation was controlled through the counterion associated with the dye cation.
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Affiliation(s)
- Susmita Das
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana-70803
| | - David Bwambok
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana-70803
| | - Bilal El-Zahab
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana-70803
| | - Joshua Monk
- Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana-70803
| | - Sergio L de Rooy
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana-70803
| | - Santhosh Challa
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana-70803
| | - Min Li
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana-70803
| | - Francisco R. Hung
- Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana-70803
| | - Gary A. Baker
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
| | - Isiah M Warner
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana-70803
- To whom correspondence should be made:
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6
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Verma S, Ghosh A, Das A, Ghosh HN. Ultrafast Exciton Dynamics of J- and H-Aggregates of the Porphyrin-Catechol in Aqueous Solution. J Phys Chem B 2010; 114:8327-34. [DOI: 10.1021/jp101643c] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sandeep Verma
- Radiation and Photo Chemistry Division, Bhabha Atomic Research Center, Mumbai-400085, India, and Central Salt and Marine Chemicals Research Institute (CSIR), Bhavnagar: 364002, Gujarat, India
| | - Amrita Ghosh
- Radiation and Photo Chemistry Division, Bhabha Atomic Research Center, Mumbai-400085, India, and Central Salt and Marine Chemicals Research Institute (CSIR), Bhavnagar: 364002, Gujarat, India
| | - Amitava Das
- Radiation and Photo Chemistry Division, Bhabha Atomic Research Center, Mumbai-400085, India, and Central Salt and Marine Chemicals Research Institute (CSIR), Bhavnagar: 364002, Gujarat, India
| | - Hirendra Nath Ghosh
- Radiation and Photo Chemistry Division, Bhabha Atomic Research Center, Mumbai-400085, India, and Central Salt and Marine Chemicals Research Institute (CSIR), Bhavnagar: 364002, Gujarat, India
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7
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Liu K, Liu W, Yan Y, Dong Z, Xu C, Qian S. Excited-state dynamics in light-harvesting complex of Rhodobacter sphaeroides. Sci Bull (Beijing) 2008. [DOI: 10.1007/s11434-008-0187-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Formation process of micrometer-sized pseudoisocyanine J-aggregates studied by single-aggregate fluorescence spectroscopy. Chem Phys Lett 2008. [DOI: 10.1016/j.cplett.2008.04.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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9
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Dijkstra AG, la Cour Jansen T, Knoester J. Localization and coherent dynamics of excitons in the two-dimensional optical spectrum of molecular J-aggregates. J Chem Phys 2008; 128:164511. [DOI: 10.1063/1.2897753] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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10
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11
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Klugkist JA, Malyshev VA, Knoester J. Intrinsic optical bistability of thin films of linear molecular aggregates: the two-exciton approximation. J Chem Phys 2008; 128:084706. [PMID: 18315071 DOI: 10.1063/1.2832312] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We generalize our recent work on the optical bistability of thin films of molecular aggregates [J. A. Klugkist et al., J. Chem. Phys. 127, 164705 (2007)] by accounting for the optical transitions from the one-exciton manifold to the two-exciton manifold as well as the exciton-exciton annihilation of the two-exciton states via a high-lying molecular vibronic term. We also include the relaxation from the vibronic level back to both the one-exciton manifold and the ground state. By selecting the dominant optical transitions between the ground state, the one-exciton manifold, and the two-exciton manifold, we reduce the problem to four levels, enabling us to describe the nonlinear optical response of the film. The one- and two-exciton states are obtained by diagonalizing a Frenkel Hamiltonian with an uncorrelated on-site (diagonal) disorder. The optical dynamics is described by means of the density matrix equations coupled to the electromagnetic field in the film. We show that the one- to two-exciton transitions followed by a fast exciton-exciton annihilation promote the occurrence of bistability and reduce the switching intensity. We provide estimates of pertinent parameters for actual materials and conclude that the effect can be realized.
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Affiliation(s)
- Joost A Klugkist
- Centre for Theoretical Physics and Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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12
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Ultrafast pump-probe spectroscopy of linear molecular aggregates: Effects of exciton coherence and thermal dephasing. Chem Phys 2007. [DOI: 10.1016/j.chemphys.2007.06.050] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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Ivanov AA, Alfimov MV, Zheltikov AM. Wavelength-tunable ultrashort-pulse output of a photonic-crystal fiber designed to resolve ultrafast molecular dynamics. OPTICS LETTERS 2006; 31:3330-2. [PMID: 17072413 DOI: 10.1364/ol.31.003330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Wavelength-tunable 100 fs pulses generated through the soliton self-frequency shift in a photonic-crystal fiber are employed to visualize femtosecond coherence and population relaxation dynamics in molecular aggregates by means of time-resolved sum-frequency generation. This technique reveals an ultrafast dephasing of coherent molecular excitations with a phase relaxation time of about 120 fs and resolves an ultrafast switching of the nonlinear-optical response of molecular aggregates.
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Affiliation(s)
- Anatoly A Ivanov
- Center of Photochemistry, Russian Academy of Sciences, Moscow, Russia
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14
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Stiopkin I, Brixner T, Yang M, Fleming GR. Heterogeneous Exciton Dynamics Revealed by Two-Dimensional Optical Spectroscopy. J Phys Chem B 2006; 110:20032-7. [PMID: 17020391 DOI: 10.1021/jp062882f] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We show that optical two-dimensional (2D) spectroscopy can recover ultrafast heterogeneous dynamics of closely spaced delocalized exciton states from a molecular exciton manifold characterized by a single absorption band. The complete experimental third-order nonlinear optical response from room-temperature J-aggregates in liquid phase is reproduced for the first time with self-consistent Frenkel exciton theory combined with modified Redfield theory. We show that exciton relaxation between the exciton states and nuclear-motion-induced exchange-narrowed energy fluctuations of individual delocalized exciton states can be distinguished because these two processes lead to a distinctively different evolution of the absolute 2D spectrum. Our technique also allows recovery of the variation of the exciton relaxation rates as well as the degree of exciton delocalization across the absorption band.
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Affiliation(s)
- Igor Stiopkin
- Department of Chemistry and QB3 Institute University of California, Berkeley, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720-1460, USA
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15
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Liu W, Liu Y, Yan Y, Liu K, Guo L, Xu C, Qian S. The Observation of Ultrafast Excited-state Dynamical Evolution In B800- Partially or Completely Released LH2 of Rhodobacter sphaeroides601 at Room Temperature. J Biomol Struct Dyn 2006; 23:529-36. [PMID: 16494502 DOI: 10.1080/07391102.2006.10507077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Photodynamics of two kinds of peripheral antenna complexes (LH2 of Rhodobacter sphaeroides, native LH2 (RS601) and B800-released LH2 where B800-BChls were partially or completely removed with different pH treatments), were studied using femtosecond pump-probe technique at different laser wavelengths. The obtained results for these samples with different B800/B850 ratios demonstrated that under the excitation around B800 nm, the photoabsorption and photobleaching dynamics were caused by the direct excitation of upper excitonic levels of B850 and excited state of B800 pigments, respectively. Furthermore, the removal of B800 pigments had little effect on the energy transfer processes of B850 interband/intraband transfer.
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Affiliation(s)
- Weimin Liu
- Physics Department, Fudan University, Shanghai 200433, China
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17
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Kano H, Hamaguchi HO. Three-Dimensional Vibrational Imaging of a Microcrystalline J-Aggregate Using Supercontinuum-Based Ultra-Broadband Multiplex Coherent Anti-Stokes Raman Scattering Microscopy. J Phys Chem B 2006; 110:3120-6. [PMID: 16494318 DOI: 10.1021/jp056749j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Vibrational properties of a porphyrin J-aggregate microcrystal have been investigated by ultra-broadband multiplex coherent anti-Stokes Raman scattering (CARS) microspectroscopy using a supercontinuum light source generated from a photonic crystal fiber. Owing to a strong resonance effect due to an excitonic transition, clear spectral and spatial profiles of the CARS signal have been successfully obtained. On the basis of the comparison between the CARS and the fluorescence images, the spatial dependence of the CARS signal can be explained by the spatial inhomogeneity of the excitonic transition energy in the single J-aggregate microcrystal.
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Affiliation(s)
- Hideaki Kano
- Department of Chemistry, School of Science, The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan.
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18
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Zheltikov AM. Let there be white light: supercontinuum generation by ultrashort laser pulses. ACTA ACUST UNITED AC 2006. [DOI: 10.3367/ufnr.0176.200606d.0623] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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19
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Kitahama Y, Kimura Y, Takazawa K, Kido G. Magnetic Alignment of Fiber-Shaped Pseudoisocyanine J Aggregates in a Gelated Solution. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2005. [DOI: 10.1246/bcsj.78.727] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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20
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Goodson TG. Optical excitations in organic dendrimers investigated by time-resolved and nonlinear optical spectroscopy. Acc Chem Res 2005; 38:99-107. [PMID: 15709729 DOI: 10.1021/ar020247w] [Citation(s) in RCA: 163] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Our research is concerned with the optical properties of covalently bound branched multichromophore systems. The presence of strong intramolecular interactions in dendrimers and other branched macromolecules has stimulated new approaches toward improved energy transfer and light-emitting and enhanced nonlinear optical materials, as well as the possibility of delocalized (exciton) excitations in molecular aggregates. This Account summarizes some of our investigations, which combine the use of different time-resolved techniques to examine the dynamics in organic (conjugated) branched structures and provide important structure-function correlations necessary for applications.
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Affiliation(s)
- T G Goodson
- Department of Chemistry, Wayne State University, Detroit, MI 48202, USA.
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21
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Shklyarevskiy IO, Christianen PCM, Aret E, Meekes H, Vlieg E, Deroover G, Callant P, van Meervelt L, Maan JC. Determination of the Molecular Arrangement Inside Cyanine Dye Aggregates by Magnetic Orientation. J Phys Chem B 2004. [DOI: 10.1021/jp049945j] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- I. O. Shklyarevskiy
- High Field Magnet Laboratory, NSRIM, University of Nijmegen, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands, Department of Solid State Chemistry, NSRIM, University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands, AGFA-Gevaert N. V., Septestraat 27, B-2640, Mortsel, Belgium, and Department of Chemistry, KULeuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - P. C. M. Christianen
- High Field Magnet Laboratory, NSRIM, University of Nijmegen, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands, Department of Solid State Chemistry, NSRIM, University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands, AGFA-Gevaert N. V., Septestraat 27, B-2640, Mortsel, Belgium, and Department of Chemistry, KULeuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - E. Aret
- High Field Magnet Laboratory, NSRIM, University of Nijmegen, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands, Department of Solid State Chemistry, NSRIM, University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands, AGFA-Gevaert N. V., Septestraat 27, B-2640, Mortsel, Belgium, and Department of Chemistry, KULeuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - H. Meekes
- High Field Magnet Laboratory, NSRIM, University of Nijmegen, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands, Department of Solid State Chemistry, NSRIM, University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands, AGFA-Gevaert N. V., Septestraat 27, B-2640, Mortsel, Belgium, and Department of Chemistry, KULeuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - E. Vlieg
- High Field Magnet Laboratory, NSRIM, University of Nijmegen, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands, Department of Solid State Chemistry, NSRIM, University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands, AGFA-Gevaert N. V., Septestraat 27, B-2640, Mortsel, Belgium, and Department of Chemistry, KULeuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - G. Deroover
- High Field Magnet Laboratory, NSRIM, University of Nijmegen, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands, Department of Solid State Chemistry, NSRIM, University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands, AGFA-Gevaert N. V., Septestraat 27, B-2640, Mortsel, Belgium, and Department of Chemistry, KULeuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - P. Callant
- High Field Magnet Laboratory, NSRIM, University of Nijmegen, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands, Department of Solid State Chemistry, NSRIM, University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands, AGFA-Gevaert N. V., Septestraat 27, B-2640, Mortsel, Belgium, and Department of Chemistry, KULeuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - L. van Meervelt
- High Field Magnet Laboratory, NSRIM, University of Nijmegen, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands, Department of Solid State Chemistry, NSRIM, University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands, AGFA-Gevaert N. V., Septestraat 27, B-2640, Mortsel, Belgium, and Department of Chemistry, KULeuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - J. C. Maan
- High Field Magnet Laboratory, NSRIM, University of Nijmegen, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands, Department of Solid State Chemistry, NSRIM, University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands, AGFA-Gevaert N. V., Septestraat 27, B-2640, Mortsel, Belgium, and Department of Chemistry, KULeuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
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22
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Beenken WJD, Pullerits T. Spectroscopic Units in Conjugated Polymers: A Quantum Chemically Founded Concept? J Phys Chem B 2004; 108:6164-9. [PMID: 18950096 DOI: 10.1021/jp037332l] [Citation(s) in RCA: 212] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Tõnu Pullerits
- Department of Chemical Physics, Lund University, 22100 Lund, Sweden
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Hamanaka Y, Kawasaki O, Yamauchi T, Nakamura A. Morphology of self-assembled merocyanine J-aggregates in films studied by scanning near-field optical microscope. Chem Phys Lett 2003. [DOI: 10.1016/s0009-2614(03)01239-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Struganova IA, Hazell M, Gaitor J, McNally-Carr D, Zivanovic S. Influence of Inorganic Salts and Bases on the J-Band in the Absorption Spectra of Water Solutions of 1,1‘-Diethyl-2,2‘-cyanine Iodide. J Phys Chem A 2003. [DOI: 10.1021/jp0223004] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Irina A. Struganova
- Department of Physical Sciences, Barry University, 11300 NE 2nd Avenue, Miami Shores, Florida 33161
| | - Mesha Hazell
- Department of Physical Sciences, Barry University, 11300 NE 2nd Avenue, Miami Shores, Florida 33161
| | - Jacinta Gaitor
- Department of Physical Sciences, Barry University, 11300 NE 2nd Avenue, Miami Shores, Florida 33161
| | - Debra McNally-Carr
- Department of Physical Sciences, Barry University, 11300 NE 2nd Avenue, Miami Shores, Florida 33161
| | - Sanja Zivanovic
- Department of Physical Sciences, Barry University, 11300 NE 2nd Avenue, Miami Shores, Florida 33161
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Frenkel and Charge-Transfer Excitons in Organic Solids. ELECTRONIC EXCITATIONS IN ORGANIC NANOSTRUCTURES 2003. [DOI: 10.1016/s1079-4050(03)31001-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Struganova IA, Lim H, Morgan SA. The Influence of Inorganic Salts and Bases on the Formation of the J-band in the Absorption and Fluorescence Spectra of the Diluted Aqueous Solutions of TDBC. J Phys Chem B 2002. [DOI: 10.1021/jp013511w] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Irina A. Struganova
- Department of Physical Sciences, Barry University, 11300 NE 2nd Avenue, Miami Shores, Florida 33161
| | - Hyunsoo Lim
- Department of Physical Sciences, Barry University, 11300 NE 2nd Avenue, Miami Shores, Florida 33161
| | - Simone A. Morgan
- Department of Physical Sciences, Barry University, 11300 NE 2nd Avenue, Miami Shores, Florida 33161
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Nomura Y, Sugishita T, Narita S, Shibuya TI. Linear and Nonlinear Polarizabilities of Fragmental Molecules for the Phenylacetylene Dendrimers. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2002. [DOI: 10.1246/bcsj.75.481] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Ohta K, Yang M, Fleming GR. Ultrafast exciton dynamics of J-aggregates in room temperature solution studied by third-order nonlinear optical spectroscopy and numerical simulation based on exciton theory. J Chem Phys 2001. [DOI: 10.1063/1.1403693] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kano H, Saito T, Kobayashi T. Dynamic Intensity Borrowing in Porphyrin J-Aggregates Revealed by Sub-5-fs Spectroscopy. J Phys Chem B 2000. [DOI: 10.1021/jp0026134] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hideaki Kano
- Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - Takashi Saito
- Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - Takayoshi Kobayashi
- Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
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Struganova I. Dynamics of Formation of 1,1‘-Diethyl-2,2‘-Cyanine Iodide J-Aggregates in Solution. J Phys Chem A 2000. [DOI: 10.1021/jp994190f] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Irina Struganova
- Department of Physical Sciences, Barry University, 11300 NE 2nd Avenue, Miami Shores, Florida 33161
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Bakalis LD, Knoester J. Optical properties of one-dimensional exciton systems: Beyond the Heitler-London approximation. J Chem Phys 1997. [DOI: 10.1063/1.473676] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Leupold D, Stiel H, Teuchner K, Nowak F, Sandner W, Ücker B, Scheer H. Size Enhancement of Transition Dipoles to One- and Two-Exciton Bands in a Photosynthetic Antenna. PHYSICAL REVIEW LETTERS 1996; 77:4675-4678. [PMID: 10062598 DOI: 10.1103/physrevlett.77.4675] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Malyshev V, Moreno P. Mirrorless optical bistability of linear molecular aggregates. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1996; 53:416-423. [PMID: 9912898 DOI: 10.1103/physreva.53.416] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Malyshev V, Moreno P. Hidden structure of the low-energy spectrum of a one-dimensional localized Frenkel exciton. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:14587-14593. [PMID: 9978392 DOI: 10.1103/physrevb.51.14587] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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van Burgel M, Wiersma DA, Duppen K. The dynamics of one‐dimensional excitons in liquids. J Chem Phys 1995. [DOI: 10.1063/1.469393] [Citation(s) in RCA: 197] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ui H, Tomioka A, Nishiwaki T, Miyano K. Local‐field effects in the second‐harmonic generation from Langmuir–Blodgett monolayers. J Chem Phys 1994. [DOI: 10.1063/1.468367] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Pullerits T, Chachisvilis M, Jones M, Hunter C, Sundström V. Exciton dynamics in the light-harvesting complexes of Rhodobacter sphaeroides. Chem Phys Lett 1994. [DOI: 10.1016/0009-2614(94)00561-3] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Durrant JR, Knoester J, Wiersma DA. Local energetic disorder in molecular aggregates probed by the one-exciton to two-exciton transition. Chem Phys Lett 1994. [DOI: 10.1016/0009-2614(94)00379-3] [Citation(s) in RCA: 82] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Misawa K, Minoshima K, Ono H, Kobayashi T. Giant static dipole moment change on electronic excitation in highly oriented J-aggregates. Chem Phys Lett 1994. [DOI: 10.1016/0009-2614(94)00180-4] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Juzeliunas G, Andrews DL. Quantum electrodynamics of resonant energy transfer in condensed matter. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:8751-8763. [PMID: 10009655 DOI: 10.1103/physrevb.49.8751] [Citation(s) in RCA: 108] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Knoester J. Nonlinear optical line shapes of disordered molecular aggregates: Motional narrowing and the effect of intersite correlations. J Chem Phys 1993. [DOI: 10.1063/1.465623] [Citation(s) in RCA: 155] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Fidder H, Knoester J, Wiersma DA. Observation of the one‐exciton to two‐exciton transition in a J aggregate. J Chem Phys 1993. [DOI: 10.1063/1.464797] [Citation(s) in RCA: 183] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Knoester J. Third-order optical response of molecular aggregates. Disorder and the breakdown of size-enhancement. Chem Phys Lett 1993. [DOI: 10.1016/0009-2614(93)85583-a] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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