Directed self-assembly of two kinds of nanoparticles utilizing monolayer films of diblock copolymer micelles.
We demonstrated a self-assembly of two different kinds of nanoparticles simultaneously directed on a monolayer film of diblock copolymer micelles via physical and chemical arrangements. We first incorporated gold nanoparticles physically around the micelles of a monolayer film of PS-PVP micelles having a short-range hexagonal order. Iron oxide nanoparticles were then synthesized chemically in the PVP core area of the ordered micelles, resulting in a mosaic nanopattern of magnetic iron oxide nanoparticles surrounded by metallic gold nanoparticles. Thus, we were able to direct two kinds of nanoparticles to self-assemble in the specific positions as an example of controlled fabrication of nanometer-sized building blocks.
Sohn
Byeong-Hyeok
BH
Department of Materials Science and Engineering, Polymer Research Institute, Pohang University of Science and Technology, Pohang 790-784, Korea. bhsohn@postech.ac.kr
Choi
Jeong-Min
JM
Yoo
Seong Il
SI
Yun
Sang-Hyun
SH
Zin
Wang-Cheol
WC
Jung
Jin Chul
JC
Kanehara
Masayuki
M
Hirata
Takuji
T
Teranishi
Toshiharu
T