Enhanced energy and quantum efficiencies of a nanocrystalline photoelectrochemical cell sensitized with a donor-acceptor dyad derived from fluorescein

Shigeki Hattori; Taku Hasobe; Kei Ohkubo; Yasuteru Urano; Naoki Umezawa; Tetsuo Nagano; Yuji Wada; Shozo Yanagida; Shunichi Fukuzumi

doi:10.1021/jp047656p

Enhanced energy and quantum efficiencies of a nanocrystalline photoelectrochemical cell sensitized with a donor-acceptor dyad derived from fluorescein

Shigeki Hattori, Taku Hasobe, Kei Ohkubo, Yasuteru Urano, Naoki Umezawa, Tetsuo Nagano, Yuji Wada, Shozo Yanagida, Shunichi Fukuzumi

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

The dye-sensitized photovoltaic cells were prepared by using donor-acceptor dyads derived from fluorescein. The photovoltaic measurements were performed using a standard two-electrode system consisting of a working electrode and a Pt sputtered electrode in air-saturated methoxyacetonitrile containing 0.5 M iodide and 0.05 M I₂. The xanthene dye-sensitized photovoltaic cells of the charge-separation type exhibit significant enhancement in the photoelectrochemical performance as compared with those of fluorescein without the charge-separation unit. The overall power conversion efficiency (ν = 1.6%) has been attained by using a fluorescein derivative composed of an electron donor (diphenylanthracene) unit and an acceptor unit (difluoroxanthene), assembled on a ZnO-SnO₂ composite film as an oxide semiconductor.

Original language	English
Pages (from-to)	15200-15205
Number of pages	6
Journal	Journal of Physical Chemistry B
Volume	108
Issue number	39
DOIs	https://doi.org/10.1021/jp047656p
State	Published - 30 Sep 2004

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title = "Enhanced energy and quantum efficiencies of a nanocrystalline photoelectrochemical cell sensitized with a donor-acceptor dyad derived from fluorescein",

abstract = "The dye-sensitized photovoltaic cells were prepared by using donor-acceptor dyads derived from fluorescein. The photovoltaic measurements were performed using a standard two-electrode system consisting of a working electrode and a Pt sputtered electrode in air-saturated methoxyacetonitrile containing 0.5 M iodide and 0.05 M I2. The xanthene dye-sensitized photovoltaic cells of the charge-separation type exhibit significant enhancement in the photoelectrochemical performance as compared with those of fluorescein without the charge-separation unit. The overall power conversion efficiency (ν = 1.6%) has been attained by using a fluorescein derivative composed of an electron donor (diphenylanthracene) unit and an acceptor unit (difluoroxanthene), assembled on a ZnO-SnO2 composite film as an oxide semiconductor.",

author = "Shigeki Hattori and Taku Hasobe and Kei Ohkubo and Yasuteru Urano and Naoki Umezawa and Tetsuo Nagano and Yuji Wada and Shozo Yanagida and Shunichi Fukuzumi",

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T1 - Enhanced energy and quantum efficiencies of a nanocrystalline photoelectrochemical cell sensitized with a donor-acceptor dyad derived from fluorescein

AU - Hattori, Shigeki

AU - Hasobe, Taku

AU - Ohkubo, Kei

AU - Urano, Yasuteru

AU - Umezawa, Naoki

AU - Nagano, Tetsuo

AU - Wada, Yuji

AU - Yanagida, Shozo

AU - Fukuzumi, Shunichi

PY - 2004/9/30

Y1 - 2004/9/30

N2 - The dye-sensitized photovoltaic cells were prepared by using donor-acceptor dyads derived from fluorescein. The photovoltaic measurements were performed using a standard two-electrode system consisting of a working electrode and a Pt sputtered electrode in air-saturated methoxyacetonitrile containing 0.5 M iodide and 0.05 M I2. The xanthene dye-sensitized photovoltaic cells of the charge-separation type exhibit significant enhancement in the photoelectrochemical performance as compared with those of fluorescein without the charge-separation unit. The overall power conversion efficiency (ν = 1.6%) has been attained by using a fluorescein derivative composed of an electron donor (diphenylanthracene) unit and an acceptor unit (difluoroxanthene), assembled on a ZnO-SnO2 composite film as an oxide semiconductor.

AB - The dye-sensitized photovoltaic cells were prepared by using donor-acceptor dyads derived from fluorescein. The photovoltaic measurements were performed using a standard two-electrode system consisting of a working electrode and a Pt sputtered electrode in air-saturated methoxyacetonitrile containing 0.5 M iodide and 0.05 M I2. The xanthene dye-sensitized photovoltaic cells of the charge-separation type exhibit significant enhancement in the photoelectrochemical performance as compared with those of fluorescein without the charge-separation unit. The overall power conversion efficiency (ν = 1.6%) has been attained by using a fluorescein derivative composed of an electron donor (diphenylanthracene) unit and an acceptor unit (difluoroxanthene), assembled on a ZnO-SnO2 composite film as an oxide semiconductor.

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JF - Journal of Physical Chemistry B

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ER -

Enhanced energy and quantum efficiencies of a nanocrystalline photoelectrochemical cell sensitized with a donor-acceptor dyad derived from fluorescein

Abstract

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