Hole-conducting mediator for stable Sb 2S 3-sensitized photoelectrochemical solar cells

Choong Sun Lim, Sang Hyuk Im, Jae Hui Rhee, Yong Hui Lee, Hi Jung Kim, Nilkamal Maiti, Yongku Kang, Jeong Ah Chang, Md K. Nazeeruddin, Michael Grätzel, Sang Il Seok

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)


Iodide redox (3I -/I 3 -), polysulfide redox (S 2-/S x 2-), organic redox [TMTU/TMFDS 2+: tetramethylthiourea/tetramethylformaminium- bis(trifluoromethanesulfonyl)imide], ferrocene redox (Fc/Fc +), nickel redox [Ni(ii)/Ni(iii)], and cobalt redox [Co(ii)/Co(iii)] hole conducting electrolytes were systematically investigated to determine their suitability for use in Sb 2S 3-sensitized photoelectrochemical solar cells. A long-term stability test and UV-visible spectral analyses revealed that Sb 2S 3-sensitized photoelectrochemical solar cells worked stably with Co(ii)(o-phen) 3(TFSI) 2/Co(iii)(o-phen) 3(TFSI) 3 [TFSI: bis(trifluoromethanesulfonyl)imide] as the redox mediator.

Original languageEnglish
Pages (from-to)1107-1111
Number of pages5
JournalJournal of Materials Chemistry
Issue number3
Publication statusPublished - 2012 Jan 21
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry


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