Graphene oxide-Li+@C60 donor-acceptor composites for photoenergy conversion

Mustafa Supur; Yuki Kawashima; Kei Ohkubo; Hayato Sakai; Taku Hasobe; Shunichi Fukuzumi

doi:10.1039/c5cp01403d

Graphene oxide-Li⁺@C₆₀ donor-acceptor composites for photoenergy conversion

Mustafa Supur, Yuki Kawashima, Kei Ohkubo, Hayato Sakai, Taku Hasobe, Shunichi Fukuzumi

Department of Chemistry & Nanoscience

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

11 Scopus citations

Abstract

An ionic endohedral metallofullerene (Li⁺@C₆₀) with mild hydrophilic nature was combined with graphene oxide (GO) to construct a donor-acceptor composite in neat water. The resulting composite was characterised by UV-Vis and Raman spectroscopy, powder X-ray diffraction, dynamic light scattering measurements and transmission electron microscopy. Theoretical calculations (DFT at the B3LYP/6-31(d) level) were also utilized to gain further insight into the composite formation. As detected by electron paramagnetic resonance spectroscopy, photoexcitation of the GO-Li⁺@C₆₀ composite results in electron transfer from GO to the triplet excited state of Li⁺@C₆₀, leading to photocurrent generation at the OTE/SnO₂ electrode.

Original language	English
Pages (from-to)	15732-15738
Number of pages	7
Journal	Physical Chemistry Chemical Physics
Volume	17
Issue number	24
DOIs	https://doi.org/10.1039/c5cp01403d
State	Published - 28 Jun 2015

Bibliographical note

Publisher Copyright:
© the Owner Societies 2015.

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10.1039/c5cp01403d

Cite this

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title = "Graphene oxide-Li+@C60 donor-acceptor composites for photoenergy conversion",

abstract = "An ionic endohedral metallofullerene (Li+@C60) with mild hydrophilic nature was combined with graphene oxide (GO) to construct a donor-acceptor composite in neat water. The resulting composite was characterised by UV-Vis and Raman spectroscopy, powder X-ray diffraction, dynamic light scattering measurements and transmission electron microscopy. Theoretical calculations (DFT at the B3LYP/6-31(d) level) were also utilized to gain further insight into the composite formation. As detected by electron paramagnetic resonance spectroscopy, photoexcitation of the GO-Li+@C60 composite results in electron transfer from GO to the triplet excited state of Li+@C60, leading to photocurrent generation at the OTE/SnO2 electrode.",

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T1 - Graphene oxide-Li+@C60 donor-acceptor composites for photoenergy conversion

AU - Supur, Mustafa

AU - Kawashima, Yuki

AU - Ohkubo, Kei

AU - Sakai, Hayato

AU - Hasobe, Taku

AU - Fukuzumi, Shunichi

PY - 2015/6/28

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AB - An ionic endohedral metallofullerene (Li+@C60) with mild hydrophilic nature was combined with graphene oxide (GO) to construct a donor-acceptor composite in neat water. The resulting composite was characterised by UV-Vis and Raman spectroscopy, powder X-ray diffraction, dynamic light scattering measurements and transmission electron microscopy. Theoretical calculations (DFT at the B3LYP/6-31(d) level) were also utilized to gain further insight into the composite formation. As detected by electron paramagnetic resonance spectroscopy, photoexcitation of the GO-Li+@C60 composite results in electron transfer from GO to the triplet excited state of Li+@C60, leading to photocurrent generation at the OTE/SnO2 electrode.

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