Fivefold symmetry in superlattices of monolayer-protected gold nanoparticles.
Three-dimensional (3D) superlattices of gold nanoparticles were prepared at an air/solution interface. The surface of the gold nanoparticles used is protected by N-acetylglutathione (NAG). Morphological studies revealed that the superlattices formed fivefold symmetric structures such as pentagonal rod, decahedron, and icosahedron, which were probably developed by multiple twinning. Moreover, high-resolution surface images of the superlattices in fivefold symmetry showed excellent ordered arrangements of nanoparticles with both close-packed and non-close-packed structures.
Yao
Hiroshi
H
Graduate School of Material Science, University of Hyogo, 3-2-1 Koto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan. yao@sci.u-hyogo.ac.jp
Minami
Takayuki
T
Hori
Akihiko
A
Koma
Masaya
M
Kimura
Keisaku
K
D000388:Air; D005978:Glutathione / Q000031:analogs & derivatives* / Q000737:chemistry; D006046:Gold / Q000737:chemistry*; D008567:Membranes, Artificial; D053768:Metal Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D012996:Solutions / Q000737:chemistry; D013499:Surface Properties
D008567:Membranes, Artificial; D012996:Solutions; C084569:N-acetylglutathione; D006046:Gold; D005978:Glutathione