Photoelectrochemical properties of supramolecular composites of an anionic zinc chlorin and Li+@C60 on SnO2

Kei Ohkubo; Yuki Kawashima; Kentaro Mase; Hayato Sakai; Taku Hasobe; Shunichi Fukuzumi

doi:10.1142/S1088424614500825

Photoelectrochemical properties of supramolecular composites of an anionic zinc chlorin and Li⁺@C₆₀ on SnO₂

Kei Ohkubo, Yuki Kawashima, Kentaro Mase, Hayato Sakai, Taku Hasobe, Shunichi Fukuzumi

Department of Chemistry & Nanoscience

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

6 Scopus citations

Abstract

An electron donor-acceptor supramolecular complex was formed between an anionic zinc chlorin carboxylate (ZnCh^-) and lithium-ion-encapsulated [60]fullerene (Li⁺@C₆₀) by an electrostatic interaction in benzonitrile (PhCN). Photoinduced electron transfer in the supramolecular complex of ZnCh^-/Li⁺@C₆₀ resulted in the formation of the charge-separated state via electron transfer from the triplet excited state of ZnCh^- to Li⁺@C₆₀. We report herein photovoltaic cells using ZnCh^-/Li⁺@C₆₀ nanoclusters, which are assembled on the optically transparent electrode (OTE) of nanostructured SnO₂ (OTE/SnO₂). The photoelectrochemical behavior of the nanostructured SnO₂ film of supramolecular nanoclusters of ZnCh^- and Li⁺@C₆₀ denoted as OTE/SnO₂/(ZnCh^-/Li⁺@C₆₀)_n is significantly higher than the single component films of ZnCh^- or Li⁺@C₆₀ clusters, denoted as OTE/SnO₂/(ZnCh^-)_n or OTE/SnO₂/(Li⁺@C₆₀)_n.

Original language	English
Pages (from-to)	982-990
Number of pages	9
Journal	Journal of Porphyrins and Phthalocyanines
Volume	18
Issue number	10-11
DOIs	https://doi.org/10.1142/S1088424614500825
State	Published - 8 Jun 2014

Bibliographical note

Funding Information:
This work was supported by Grant-in-Aids for Scientific Research (No. 26620154 & 26288037 to KO; Nos. 26286017 & 26620159 to TH) and JSPS Fellows (25•627?to?YK?(DC1)?&?25•727?to?KM?(DC1))?from? the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan.

Publisher Copyright:
© 2014 World Scientific Publishing Company.

Keywords

charge separation
endohedral fullerene
photoelectrochemical cell
photoinduced electron transfer
supramolecule
zinc chlorin

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10.1142/S1088424614500825

Cite this

@article{30c9f6c9654947bab2c815637f84b591,

title = "Photoelectrochemical properties of supramolecular composites of an anionic zinc chlorin and Li+@C60 on SnO2",

abstract = "An electron donor-acceptor supramolecular complex was formed between an anionic zinc chlorin carboxylate (ZnCh-) and lithium-ion-encapsulated [60]fullerene (Li+@C60) by an electrostatic interaction in benzonitrile (PhCN). Photoinduced electron transfer in the supramolecular complex of ZnCh-/Li+@C60 resulted in the formation of the charge-separated state via electron transfer from the triplet excited state of ZnCh- to Li+@C60. We report herein photovoltaic cells using ZnCh-/Li+@C60 nanoclusters, which are assembled on the optically transparent electrode (OTE) of nanostructured SnO2 (OTE/SnO2). The photoelectrochemical behavior of the nanostructured SnO2 film of supramolecular nanoclusters of ZnCh- and Li+@C60 denoted as OTE/SnO2/(ZnCh-/Li+@C60)n is significantly higher than the single component films of ZnCh- or Li+@C60 clusters, denoted as OTE/SnO2/(ZnCh-)n or OTE/SnO2/(Li+@C60)n.",

keywords = "charge separation, endohedral fullerene, photoelectrochemical cell, photoinduced electron transfer, supramolecule, zinc chlorin",

author = "Kei Ohkubo and Yuki Kawashima and Kentaro Mase and Hayato Sakai and Taku Hasobe and Shunichi Fukuzumi",

note = "Funding Information: This work was supported by Grant-in-Aids for Scientific Research (No. 26620154 & 26288037 to KO; Nos. 26286017 & 26620159 to TH) and JSPS Fellows (25•627?to?YK?(DC1)?&?25•727?to?KM?(DC1))?from? the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. Publisher Copyright: {\textcopyright} 2014 World Scientific Publishing Company.",

year = "2014",

month = jun,

day = "8",

doi = "10.1142/S1088424614500825",

language = "English",

volume = "18",

pages = "982--990",

journal = "Journal of Porphyrins and Phthalocyanines",

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TY - JOUR

T1 - Photoelectrochemical properties of supramolecular composites of an anionic zinc chlorin and Li+@C60 on SnO2

AU - Ohkubo, Kei

AU - Kawashima, Yuki

AU - Mase, Kentaro

AU - Sakai, Hayato

AU - Hasobe, Taku

AU - Fukuzumi, Shunichi

N1 - Funding Information: This work was supported by Grant-in-Aids for Scientific Research (No. 26620154 & 26288037 to KO; Nos. 26286017 & 26620159 to TH) and JSPS Fellows (25•627?to?YK?(DC1)?&?25•727?to?KM?(DC1))?from? the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. Publisher Copyright: © 2014 World Scientific Publishing Company.

PY - 2014/6/8

Y1 - 2014/6/8

N2 - An electron donor-acceptor supramolecular complex was formed between an anionic zinc chlorin carboxylate (ZnCh-) and lithium-ion-encapsulated [60]fullerene (Li+@C60) by an electrostatic interaction in benzonitrile (PhCN). Photoinduced electron transfer in the supramolecular complex of ZnCh-/Li+@C60 resulted in the formation of the charge-separated state via electron transfer from the triplet excited state of ZnCh- to Li+@C60. We report herein photovoltaic cells using ZnCh-/Li+@C60 nanoclusters, which are assembled on the optically transparent electrode (OTE) of nanostructured SnO2 (OTE/SnO2). The photoelectrochemical behavior of the nanostructured SnO2 film of supramolecular nanoclusters of ZnCh- and Li+@C60 denoted as OTE/SnO2/(ZnCh-/Li+@C60)n is significantly higher than the single component films of ZnCh- or Li+@C60 clusters, denoted as OTE/SnO2/(ZnCh-)n or OTE/SnO2/(Li+@C60)n.

AB - An electron donor-acceptor supramolecular complex was formed between an anionic zinc chlorin carboxylate (ZnCh-) and lithium-ion-encapsulated [60]fullerene (Li+@C60) by an electrostatic interaction in benzonitrile (PhCN). Photoinduced electron transfer in the supramolecular complex of ZnCh-/Li+@C60 resulted in the formation of the charge-separated state via electron transfer from the triplet excited state of ZnCh- to Li+@C60. We report herein photovoltaic cells using ZnCh-/Li+@C60 nanoclusters, which are assembled on the optically transparent electrode (OTE) of nanostructured SnO2 (OTE/SnO2). The photoelectrochemical behavior of the nanostructured SnO2 film of supramolecular nanoclusters of ZnCh- and Li+@C60 denoted as OTE/SnO2/(ZnCh-/Li+@C60)n is significantly higher than the single component films of ZnCh- or Li+@C60 clusters, denoted as OTE/SnO2/(ZnCh-)n or OTE/SnO2/(Li+@C60)n.

KW - charge separation

KW - endohedral fullerene

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KW - photoinduced electron transfer

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KW - zinc chlorin

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