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SERS: Highly‐Ordered, 3D Petal‐Like Array for Surface‐Enhanced Raman Scattering (Small 13/2011)
Author(s) -
Qian Chuang,
Ni Chao,
Yu Wenxuan,
Wu Wengang,
Mao Haiyang,
Wang Yifei,
Xu Jun
Publication year - 2011
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201190047
Subject(s) - raman scattering , materials science , bilayer , nanotechnology , etching (microfabrication) , substrate (aquarium) , raman spectroscopy , nanoparticle , scattering , deposition (geology) , self assembly , optoelectronics , optics , layer (electronics) , chemistry , paleontology , biochemistry , physics , oceanography , membrane , sediment , geology , biology
Despite the great potential of the application of surface‐enhanced Raman scattering (SERS), the difficulty in fabricating suitable SERS substrates is still a challenge. Based on the self‐assembly of silica nanoparticles, the image shows a highly ordered, 3D petallike arrayed structure that serves as a promising SERS substrate because of both its high reproducibility and enormous SERS enhancement. Such a novel structure is easily achieved by anisotropically etching a self‐assembled bilayer of silica nanoparticles followed by metal deposition. The spatially average SERS enhancement factor is on the order of 5×10 7 , and the local enhancement factor is much higher; both factors can be improved further by optimizing parameters. For more information, please read the Full Paper “Highly‐Ordered, 3D Petal‐Like Array for Surface‐Enhanced Raman Scattering” by W. Wu and co‐workers, beginning on page 1800 .