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Cover Picture: Asymmetric Modification of TiO 2 Nanofibers with Gold by Electric‐Field‐Assisted Photochemistry (ChemElectroChem 12/2014)
Author(s) -
Ongaro Michael,
Roche Jerôme,
Kuhn Alexander,
Ugo Paolo
Publication year - 2014
Publication title -
chemelectrochem
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201402381
Subject(s) - electric field , nanofiber , semiconductor , materials science , redox , charge carrier , nanotechnology , photochemistry , fiber , optoelectronics , deposition (geology) , coupling (piping) , chemical engineering , chemistry , composite material , physics , paleontology , quantum mechanics , sediment , engineering , metallurgy , biology
Directing charge carriers: Highly site‐selective metal deposition on semiconductor nanofibers is achieved through a synergetic effect between UV irradiation and strong electric fields. This coupling allows the generation of electron–hole pairs and drives them to the opposite extremities of the fibers, where they can react with redox species in solution. Such an electric‐field‐assisted photochemical process is suitable to the highly localized photodeposition of metals, leading to semiconductor Janus objects. In this paper, TiO 2 nanofibers are anisotropically functionalised by depositing gold at one tip of each fiber. (DOI: 10.1002/celc.201402161 ).