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Photocatalytic Au–Bi 2 S 3 Heteronanostructures
Author(s) -
Manna Goutam,
Bose Riya,
Pradhan Narayan
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201402709
Subject(s) - nanorod , materials science , photocatalysis , semiconductor , nanostructure , exciton , nanoparticle , plasmon , nanotechnology , optoelectronics , charge carrier , catalysis , chemistry , physics , quantum mechanics , biochemistry
Au–Bi 2 S 3 heteronanostructure photocatalysts were designed in which the coupling of a metal plasmon and a semiconductor exciton aids the absorption of solar light, enhances charge separation, and results in improved catalytic activity. Furthermore, these nanostructures show a unique pattern of structural combination, with Au nanoparticles positioned at the center of Bi 2 S 3 nanorods. The chemistry of formation of these nanostructures, their epitaxy at the junction, and their photoconductance were studied, as well as their photoresponse properties.