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

Research output: Contribution to journalArticle

5 Citations (Scopus)

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 languageEnglish
Pages (from-to)982-990
Number of pages9
JournalJournal of Porphyrins and Phthalocyanines
Volume18
Issue number10-11
DOIs
Publication statusPublished - 2014 Jun 8

Keywords

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

ASJC Scopus subject areas

  • Chemistry(all)

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