Photoelectrochemical properties of metal-cluster oxide compounds, A2Mo3O8 and (LiY)Mo3O8

M. Paranthaman, G. Aravamudan, G. V. Subba Rao

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

PEC studies on the single crystals of the metal-cluster oxide compounds. A2Mo3O8 (A = Zn, Mg, Fe), and polycrystalline LiYMo3O8 are reported. The photoresponse behaviour is attributed to the Mo d-d transition. The photopotential, the photocurrent vs applied voltage and the wavelength data indicate that n-Zn2Mo3O8 is stable and possesses a small and indirect band gap of 1·55 eV and a direct band gap of 1·9 eV. With change in A ions in A2Mo3O8, there is no significant change in the PEC properties. LiYMo3O8 is found to be of p-type. PEC studies show that excepting for poor electronic conductivity, A2Mo3O8 possesses all the requisitie characteristics of an ideal photoanode for PAE of water for trapping solar energy.

Original languageEnglish
Pages (from-to)313-322
Number of pages10
JournalBulletin of Materials Science
Volume10
Issue number4
DOIs
StatePublished - Jul 1988
Externally publishedYes

Keywords

  • Metal-cluster oxides
  • d-d transition
  • photoresponsive semi-conductors
  • single crystals

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