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Core–Shell Materials: Combination of HAADF‐STEM and ADF‐STEM Tomography for Core–Shell Hybrid Materials (Part. Part. Syst. Charact. 12/2015)
Author(s) -
Sentosun Kadir,
Sanz Ortiz Marta N.,
Batenburg K. Joost,
LizMarzán Luis M.,
Bals Sara
Publication year - 2015
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.201570040
Subject(s) - materials science , shell (structure) , electron tomography , core (optical fiber) , nanoparticle , mesoporous material , characterization (materials science) , mesoporous silica , nanotechnology , tomography , template , chemical engineering , optics , composite material , scanning transmission electron microscopy , chemistry , transmission electron microscopy , physics , biochemistry , engineering , catalysis
A 3D reconstruction of a Au nanoparticle core coated with a mesoporous silica shell obtained by electron tomography is illustrated. 3D characterization of the nanoparticles is performed by simultaneous use of multiple annular detectors in STEM mode by S. Bals and co‐workers, as described on page 1063. An in‐depth analysis of the channel properties such as pore orientation, pore size, and wall thickness becomes possible by using an optimized reconstruction method. The pore channels can be used as templates for further Au growth to improve the SERS activity.