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

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6 Scopus citations


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 languageEnglish
Pages (from-to)982-990
Number of pages9
JournalJournal of Porphyrins and Phthalocyanines
Issue number10-11
StatePublished - 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.


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


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