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Issue 5, 2002
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High photostability and quantum yield of nanoporous TiO2 thin film electrodes co-sensitized with capped sulfides

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Abstract

Photoelectrochemical electrodes have been prepared by sequential deposition of quantum sized PbS, CdS and ZnS particles on TiO2 nanocrystalline films. Their photoelectrochemical properties have been studied in a two-electrode system which conforms more closely to practical conditions. The results show that the ternary sulfide PbS/CdS/ZnS co-sensitized TiO2 electrode generates incident photon-to-current conversion efficiency (IPCE) as high as nearly 100% under irradiation with 400 nm light; moreover its photostability is strongly improved, and this is the first report of this so far. The highest photoelectrical conversion efficiency is obtained for the TiO2/PbS/CdS/ZnS electrode, and is about twice as much as that of TiO2/PbS.

Graphical abstract: High photostability and quantum yield of nanoporous TiO2 thin film electrodes co-sensitized with capped sulfides

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Publication details

The article was received on 03 Jul 2001, accepted on 14 Dec 2001 and first published on 11 Mar 2002


Article type: Paper
DOI: 10.1039/B105796K
Citation: J. Mater. Chem., 2002,12, 1459-1464
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    High photostability and quantum yield of nanoporous TiO2 thin film electrodes co-sensitized with capped sulfides

    S. Yang, C. Huang, J. Zhai, Z. Wang and L. Jiang, J. Mater. Chem., 2002, 12, 1459
    DOI: 10.1039/B105796K

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