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Preparation of Gold Nanowires and Nanosheets in Bulk Block Copolymer Phases under Mild Conditions
Author(s) -
Kim J.U.,
Cha S.H.,
Shin K.,
Jho J. Y.,
Lee J.C.
Publication year - 2004
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200305613
Subject(s) - materials science , nanowire , copolymer , nanostructure , nanotechnology , chemical engineering , phase (matter) , composite material , organic chemistry , polymer , chemistry , engineering
Gold nanostructures —nanowires and nanosheets—are reported to have been prepared from the gold salt HAuCl 4 in a solid bulk phase of a block copolymer. The Figure shows a SEM image of nanosheets formed by thermal reduction at 70 °C. If water is included in the initial mixture and the reduction occurs by UV irradiation, predominantly nanowires are produced. Reasons for this distinction are discussed.