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Issue 12, 2010
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A greener route to photoelectrochemically active PbS nanoparticles

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Abstract

A cheap and more environmentally friendly method for the synthesis of high quality PbS nanoparticles in olive oil at 60 °C has been developed. Carefully controlling the conditions of reactions leads to PbS nanoparticles with well-defined sizes, and band gaps between 1.72 and 0.88 eV. The nanoparticles were characterized by XRD, HRTEM, NIR absorption spectroscopy, X-ray photoelectron spectroscopy (XPS) and a fluorescence lifetime experiment based on the time-correlated single photon counting (TCSPC) technique. Photoelectrochemical study carried out by steady-state current–voltage measurements of self-assembled PbS nanoparticles on ZnO–SnO2 electrodes in 1 M Na2SO3 electrolyte solution showed that as-prepared PbS nanoparticles were photochemically active.

Graphical abstract: A greener route to photoelectrochemically active PbS nanoparticles

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Publication details

The article was received on 19 Nov 2009, accepted on 13 Jan 2010 and first published on 03 Feb 2010


Article type: Paper
DOI: 10.1039/B924436K
Citation: J. Mater. Chem., 2010,20, 2336-2344
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    A greener route to photoelectrochemically active PbS nanoparticles

    J. Akhtar, M. Azad Malik, P. O'Brien, K. G. U. Wijayantha, R. Dharmadasa, S. J. O. Hardman, D. M. Graham, B. F. Spencer, S. K. Stubbs, W. R. Flavell, D. J. Binks, F. Sirotti, M. El Kazzi and M. Silly, J. Mater. Chem., 2010, 20, 2336
    DOI: 10.1039/B924436K

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