Xanthene Derivative

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Shinsuke Takagi - One of the best experts on this subject based on the ideXlab platform.

  • artificial light harvesting system with energy migration functionality in a cationic dye inorganic nanosheet complex
    Journal of Physical Chemistry C, 2015
    Co-Authors: Yuta Ohtani, Tetsuya Shimada, Shinsuke Takagi
    Abstract:

    We investigated a reaction involving photochemical energy transfer between a cationic Xanthene Derivative (Flu(D)) and a cationic porphyrin (Por(A)) with an energy migration functionality, which is crucial for efficient light-harvesting on an inorganic nanosheet. Efficient energy transfer from excited Flu(D) to Por(A) took place, and the maximum energy transfer efficiency was 99%. Even under light-harvesting conditions, Por(A) concentration was much less than Flu(D) concentration (Flu(D)/Por(A) concentration ratio = 15), and the energy transfer efficiency was still 80%. Steady-state, time-resolved, anisotropic fluorescence measurements indicate energy migration between Flu(D) molecules. This system has the functionality of a light-harvesting system using a dye and having a large overlap between its absorption and fluorescence spectra.

  • Artificial Light-Harvesting System with Energy Migration Functionality in a Cationic Dye/Inorganic Nanosheet Complex
    The Journal of Physical Chemistry C, 2015
    Co-Authors: Yuta Ohtani, Tetsuya Shimada, Shinsuke Takagi
    Abstract:

    We investigated a reaction involving photochemical energy transfer between a cationic Xanthene Derivative (Flu(D)) and a cationic porphyrin (Por(A)) with an energy migration functionality, which is crucial for efficient light-harvesting on an inorganic nanosheet. Efficient energy transfer from excited Flu(D) to Por(A) took place, and the maximum energy transfer efficiency was 99%. Even under light-harvesting conditions, Por(A) concentration was much less than Flu(D) concentration (Flu(D)/Por(A) concentration ratio = 15), and the energy transfer efficiency was still 80%. Steady-state, time-resolved, anisotropic fluorescence measurements indicate energy migration between Flu(D) molecules. This system has the functionality of a light-harvesting system using a dye and having a large overlap between its absorption and fluorescence spectra.

  • Artificial Light-Harvesting System with Energy Migration Functionality in a Cationic Dye/Inorganic Nanosheet Complex
    2015
    Co-Authors: Yuta Ohtani, Tetsuya Shimada, Shinsuke Takagi
    Abstract:

    We investigated a reaction involving photochemical energy transfer between a cationic Xanthene Derivative (Flu­(D)) and a cationic porphyrin (Por­(A)) with an energy migration functionality, which is crucial for efficient light-harvesting on an inorganic nanosheet. Efficient energy transfer from excited Flu­(D) to Por­(A) took place, and the maximum energy transfer efficiency was 99%. Even under light-harvesting conditions, Por­(A) concentration was much less than Flu­(D) concentration (Flu­(D)/Por­(A) concentration ratio = 15), and the energy transfer efficiency was still 80%. Steady-state, time-resolved, anisotropic fluorescence measurements indicate energy migration between Flu­(D) molecules. This system has the functionality of a light-harvesting system using a dye and having a large overlap between its absorption and fluorescence spectra

  • Adsorption and photochemical behaviors of the novel cationic Xanthene Derivative on the clay surface
    Tetrahedron Letters, 2014
    Co-Authors: Yuta Ohtani, Tetsuya Shimada, Hiroshi Tachibana, Yuka Ando, Yohei Ishida, Shinsuke Takagi
    Abstract:

    Abstract Novel tetra-cationic Xanthene Derivative (Flu) was synthesized. Its adsorption and photochemical behaviors on the clay surface were investigated. Fluorescence quantum yield ( ϕ f ) and fluorescence lifetime were 0.50 and 2.9 ns for Flu/clay complex. ϕ f of Flu was enough high (>0.1) even at high density conditions (0.080 molecules nm −2 ). It is supposed that the strong interaction between clay and Flu by the ‘Size-Matching Effect’ realizes the highly emissive clay complexes at high density adsorption condition by a suppression of a molecular aggregation, which tends to decrease the photochemical activity.

Yuta Ohtani - One of the best experts on this subject based on the ideXlab platform.

  • artificial light harvesting system with energy migration functionality in a cationic dye inorganic nanosheet complex
    Journal of Physical Chemistry C, 2015
    Co-Authors: Yuta Ohtani, Tetsuya Shimada, Shinsuke Takagi
    Abstract:

    We investigated a reaction involving photochemical energy transfer between a cationic Xanthene Derivative (Flu(D)) and a cationic porphyrin (Por(A)) with an energy migration functionality, which is crucial for efficient light-harvesting on an inorganic nanosheet. Efficient energy transfer from excited Flu(D) to Por(A) took place, and the maximum energy transfer efficiency was 99%. Even under light-harvesting conditions, Por(A) concentration was much less than Flu(D) concentration (Flu(D)/Por(A) concentration ratio = 15), and the energy transfer efficiency was still 80%. Steady-state, time-resolved, anisotropic fluorescence measurements indicate energy migration between Flu(D) molecules. This system has the functionality of a light-harvesting system using a dye and having a large overlap between its absorption and fluorescence spectra.

  • Artificial Light-Harvesting System with Energy Migration Functionality in a Cationic Dye/Inorganic Nanosheet Complex
    The Journal of Physical Chemistry C, 2015
    Co-Authors: Yuta Ohtani, Tetsuya Shimada, Shinsuke Takagi
    Abstract:

    We investigated a reaction involving photochemical energy transfer between a cationic Xanthene Derivative (Flu(D)) and a cationic porphyrin (Por(A)) with an energy migration functionality, which is crucial for efficient light-harvesting on an inorganic nanosheet. Efficient energy transfer from excited Flu(D) to Por(A) took place, and the maximum energy transfer efficiency was 99%. Even under light-harvesting conditions, Por(A) concentration was much less than Flu(D) concentration (Flu(D)/Por(A) concentration ratio = 15), and the energy transfer efficiency was still 80%. Steady-state, time-resolved, anisotropic fluorescence measurements indicate energy migration between Flu(D) molecules. This system has the functionality of a light-harvesting system using a dye and having a large overlap between its absorption and fluorescence spectra.

  • Artificial Light-Harvesting System with Energy Migration Functionality in a Cationic Dye/Inorganic Nanosheet Complex
    2015
    Co-Authors: Yuta Ohtani, Tetsuya Shimada, Shinsuke Takagi
    Abstract:

    We investigated a reaction involving photochemical energy transfer between a cationic Xanthene Derivative (Flu­(D)) and a cationic porphyrin (Por­(A)) with an energy migration functionality, which is crucial for efficient light-harvesting on an inorganic nanosheet. Efficient energy transfer from excited Flu­(D) to Por­(A) took place, and the maximum energy transfer efficiency was 99%. Even under light-harvesting conditions, Por­(A) concentration was much less than Flu­(D) concentration (Flu­(D)/Por­(A) concentration ratio = 15), and the energy transfer efficiency was still 80%. Steady-state, time-resolved, anisotropic fluorescence measurements indicate energy migration between Flu­(D) molecules. This system has the functionality of a light-harvesting system using a dye and having a large overlap between its absorption and fluorescence spectra

  • Adsorption and photochemical behaviors of the novel cationic Xanthene Derivative on the clay surface
    Tetrahedron Letters, 2014
    Co-Authors: Yuta Ohtani, Tetsuya Shimada, Hiroshi Tachibana, Yuka Ando, Yohei Ishida, Shinsuke Takagi
    Abstract:

    Abstract Novel tetra-cationic Xanthene Derivative (Flu) was synthesized. Its adsorption and photochemical behaviors on the clay surface were investigated. Fluorescence quantum yield ( ϕ f ) and fluorescence lifetime were 0.50 and 2.9 ns for Flu/clay complex. ϕ f of Flu was enough high (>0.1) even at high density conditions (0.080 molecules nm −2 ). It is supposed that the strong interaction between clay and Flu by the ‘Size-Matching Effect’ realizes the highly emissive clay complexes at high density adsorption condition by a suppression of a molecular aggregation, which tends to decrease the photochemical activity.

Tetsuya Shimada - One of the best experts on this subject based on the ideXlab platform.

  • artificial light harvesting system with energy migration functionality in a cationic dye inorganic nanosheet complex
    Journal of Physical Chemistry C, 2015
    Co-Authors: Yuta Ohtani, Tetsuya Shimada, Shinsuke Takagi
    Abstract:

    We investigated a reaction involving photochemical energy transfer between a cationic Xanthene Derivative (Flu(D)) and a cationic porphyrin (Por(A)) with an energy migration functionality, which is crucial for efficient light-harvesting on an inorganic nanosheet. Efficient energy transfer from excited Flu(D) to Por(A) took place, and the maximum energy transfer efficiency was 99%. Even under light-harvesting conditions, Por(A) concentration was much less than Flu(D) concentration (Flu(D)/Por(A) concentration ratio = 15), and the energy transfer efficiency was still 80%. Steady-state, time-resolved, anisotropic fluorescence measurements indicate energy migration between Flu(D) molecules. This system has the functionality of a light-harvesting system using a dye and having a large overlap between its absorption and fluorescence spectra.

  • Artificial Light-Harvesting System with Energy Migration Functionality in a Cationic Dye/Inorganic Nanosheet Complex
    The Journal of Physical Chemistry C, 2015
    Co-Authors: Yuta Ohtani, Tetsuya Shimada, Shinsuke Takagi
    Abstract:

    We investigated a reaction involving photochemical energy transfer between a cationic Xanthene Derivative (Flu(D)) and a cationic porphyrin (Por(A)) with an energy migration functionality, which is crucial for efficient light-harvesting on an inorganic nanosheet. Efficient energy transfer from excited Flu(D) to Por(A) took place, and the maximum energy transfer efficiency was 99%. Even under light-harvesting conditions, Por(A) concentration was much less than Flu(D) concentration (Flu(D)/Por(A) concentration ratio = 15), and the energy transfer efficiency was still 80%. Steady-state, time-resolved, anisotropic fluorescence measurements indicate energy migration between Flu(D) molecules. This system has the functionality of a light-harvesting system using a dye and having a large overlap between its absorption and fluorescence spectra.

  • Artificial Light-Harvesting System with Energy Migration Functionality in a Cationic Dye/Inorganic Nanosheet Complex
    2015
    Co-Authors: Yuta Ohtani, Tetsuya Shimada, Shinsuke Takagi
    Abstract:

    We investigated a reaction involving photochemical energy transfer between a cationic Xanthene Derivative (Flu­(D)) and a cationic porphyrin (Por­(A)) with an energy migration functionality, which is crucial for efficient light-harvesting on an inorganic nanosheet. Efficient energy transfer from excited Flu­(D) to Por­(A) took place, and the maximum energy transfer efficiency was 99%. Even under light-harvesting conditions, Por­(A) concentration was much less than Flu­(D) concentration (Flu­(D)/Por­(A) concentration ratio = 15), and the energy transfer efficiency was still 80%. Steady-state, time-resolved, anisotropic fluorescence measurements indicate energy migration between Flu­(D) molecules. This system has the functionality of a light-harvesting system using a dye and having a large overlap between its absorption and fluorescence spectra

  • Adsorption and photochemical behaviors of the novel cationic Xanthene Derivative on the clay surface
    Tetrahedron Letters, 2014
    Co-Authors: Yuta Ohtani, Tetsuya Shimada, Hiroshi Tachibana, Yuka Ando, Yohei Ishida, Shinsuke Takagi
    Abstract:

    Abstract Novel tetra-cationic Xanthene Derivative (Flu) was synthesized. Its adsorption and photochemical behaviors on the clay surface were investigated. Fluorescence quantum yield ( ϕ f ) and fluorescence lifetime were 0.50 and 2.9 ns for Flu/clay complex. ϕ f of Flu was enough high (>0.1) even at high density conditions (0.080 molecules nm −2 ). It is supposed that the strong interaction between clay and Flu by the ‘Size-Matching Effect’ realizes the highly emissive clay complexes at high density adsorption condition by a suppression of a molecular aggregation, which tends to decrease the photochemical activity.

Gerhard Erker - One of the best experts on this subject based on the ideXlab platform.

Long Wang - One of the best experts on this subject based on the ideXlab platform.

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