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Published on: May 2, 2014
Solar hydrogen generation by silicon nanowires modified with platinum nanoparticle catalysts by atomic layer
Pengcheng Dai1, Jin Xie, Matthew T Mayer
1Department of Chemistry, Merkert Chemistry Center, Boston College, 2609 Beacon St., Chestnut Hill, MA 02467 (USA) http://www2.bc.edu/dunwei-wang; Department of Chemistry, Shandong University, 27 South Shanda Road, Jinan, Shandong, 250100 (P. R. China).
Abstract:
Covered with Pt: A uniform catalyst profile that ensures effective radial charge collection from high-aspect-ratio Si nanowires was achieved by atomic layer deposition of Pt nanoparticles. The resulting photoelectrode permits the measurement of high photovoltages and low overpotentials, and leads to very good stability against photooxidation of Si nanowires in solar water-reduction reactions.
