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Issue 22, 2015
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A new Pb(IV)-based photocathode material Sr2PbO4 with good light harvesting ability

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Abstract

Crystalline plumbate Sr2PbO4 has been synthesized by a high temperature flux method and characterized by X-ray powder diffraction analysis, UV-vis spectroscopy, theoretical studies and SEM analysis. The results show that Sr2PbO4 has indirect optical transitions with an energy of about 1.75 eV which can be assigned to the electron transfer from the state of O-2p to the mixed states of O-2p and Pb-6s. The photoelectrochemical properties of Sr2PbO4 were studied for the first time, indicating that this material has p-type conductivity. The measured current density at an intensity of 47 μA cm−2 makes Sr2PbO4 a promising photocathode material for visible-light-driven water splitting.

Graphical abstract: A new Pb(iv)-based photocathode material Sr2PbO4 with good light harvesting ability

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The article was received on 31 Mar 2015, accepted on 25 Apr 2015 and first published on 28 Apr 2015


Article type: Paper
DOI: 10.1039/C5TA02349A
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Citation: J. Mater. Chem. A, 2015,3, 12051-12058
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    A new Pb(IV)-based photocathode material Sr2PbO4 with good light harvesting ability

    D. Zhao, J. Han, J. Cui, X. Zong and C. Li, J. Mater. Chem. A, 2015, 3, 12051
    DOI: 10.1039/C5TA02349A

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