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Gold Nanostructures: Biologically‐Enabled Syntheses of Freestanding Metallic Structures Possessing Subwavelength Pore Arrays for Extraordinary (Surface Plasmon‐Mediated) Infrared Transmission (Adv. Funct. Mater. 12/2012)
Author(s) -
Fang Yunnan,
Chen Vincent W.,
Cai Ye,
Berrigan John D.,
Marder Seth R.,
Perry Joseph W.,
Sandhage Kenneth H.
Publication year - 2012
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201290072
Subject(s) - materials science , plasmon , conformal coating , nanotechnology , nanostructure , infrared , surface plasmon , colloidal gold , nanocrystalline material , optoelectronics , nanoparticle , optics , coating , physics
The optical image shows a freestanding (silica‐free) three‐dimensional nanocrystalline gold replica of the valve of a Coscinodiscus asteromphalus (CA) diatom. On page 2550 , Joseph W. Perry, Kenneth H. Sand‐hage, and co‐workers report the generation of such gold replicas via the use of a highly conformal and scalable wet chemical coating process. The quasiperiodic hexagonal hole pattern inherited from the native CA diatom valve enables the gold replica to exhibit plasmon‐mediated extraordinary infrared transmission.