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Colloidal Gold Nanocups with Orientation‐Dependent Plasmonic Properties
Author(s) -
Jiang Ruibin,
Qin Feng,
Liu Yejing,
Ling Xing Yi,
Guo Jun,
Tang Minghua,
Cheng Si,
Wang Jianfang
Publication year - 2016
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.201601442
Subject(s) - materials science , plasmon , surface plasmon resonance , colloidal gold , substrate (aquarium) , colloid , nanotechnology , dissolution , gold colloid , optoelectronics , chemical engineering , nanoparticle , oceanography , geology , engineering
Colloidal gold nanocups are synthesized through single‐vertex‐initiated gold deposition on PbS nanooctahedrons and subsequent selective dissolution of the PbS component. They possess strong magnetic plasmon resonance and exhibit remarkable orientation‐dependent plasmonic properties when deposited on flat substrates. They can also effectively couple s‐polarized light into the interfacial region between the nanocup and substrate.