Details
| Original language | English |
|---|---|
| Pages (from-to) | 6355-6364 |
| Number of pages | 10 |
| Journal | ACS NANO |
| Volume | 5 |
| Issue number | 8 |
| Early online date | 29 Jul 2011 |
| Publication status | Published - 23 Aug 2011 |
Abstract
Simultaneous synthesis and assembly of nanoparticles that exhibit unique physicochemical properties are critically important for designing new functional devices at the macroscopic scale. In the present study, we report a simple version of block copolymer micellar lithography (BCML) to synthesize gold and titanium dioxide (TiO2) nanoarrays by using benzyl alcohol (BnOH) as a solvent. In contrast to toluene, BnOH can lead to the formation of various gold nanopatterns via salt-induced micellization of polystyrene-block- poly(vinylpyridine) (PS-b-P2VP). In the case of titania, the use of BCML with a nonaqueous sol-gel method, the "benzyl alcohol route", enables the fabrication of nanopatterns made of quasi-hexagonally organized particles or parallel wires upon aging a (BnOH-TiCl4-PS846-b-P2VP 171)-containing solution for four weeks to grow TiO2 building blocks in situ. This approach was found to depend mainly on the relative lengths of the polymer blocks, which allows nanoparticle-induced micellization and self-assembly during solvent evaporation. Moreover, this versatile route enables the design of uniform and quasi-ordered gold-TiO 2 binary nanoarrays with a precise particle density due to the absence of graphoepitaxy during the deposition of TiO2 onto gold nanopatterns.
Keywords
- binary nanoarrays, block copolymer micellar lithography, directed self-assembly, in situ growth of nanoparticles, nonaqueous sol-gel process
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Engineering(all)
- General Engineering
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: ACS NANO, Vol. 5, No. 8, 23.08.2011, p. 6355-6364.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Benzyl alcohol and block copolymer micellar lithography
T2 - A versatile route to assembling gold and in situ generated titania nanoparticles into uniform binary nanoarrays
AU - Polleux, Julien
AU - Rasp, Matthias
AU - Louban, Ilia
AU - Plath, Nicole
AU - Feldhoff, Armin
AU - Spatz, Joachim P.
PY - 2011/8/23
Y1 - 2011/8/23
N2 - Simultaneous synthesis and assembly of nanoparticles that exhibit unique physicochemical properties are critically important for designing new functional devices at the macroscopic scale. In the present study, we report a simple version of block copolymer micellar lithography (BCML) to synthesize gold and titanium dioxide (TiO2) nanoarrays by using benzyl alcohol (BnOH) as a solvent. In contrast to toluene, BnOH can lead to the formation of various gold nanopatterns via salt-induced micellization of polystyrene-block- poly(vinylpyridine) (PS-b-P2VP). In the case of titania, the use of BCML with a nonaqueous sol-gel method, the "benzyl alcohol route", enables the fabrication of nanopatterns made of quasi-hexagonally organized particles or parallel wires upon aging a (BnOH-TiCl4-PS846-b-P2VP 171)-containing solution for four weeks to grow TiO2 building blocks in situ. This approach was found to depend mainly on the relative lengths of the polymer blocks, which allows nanoparticle-induced micellization and self-assembly during solvent evaporation. Moreover, this versatile route enables the design of uniform and quasi-ordered gold-TiO 2 binary nanoarrays with a precise particle density due to the absence of graphoepitaxy during the deposition of TiO2 onto gold nanopatterns.
AB - Simultaneous synthesis and assembly of nanoparticles that exhibit unique physicochemical properties are critically important for designing new functional devices at the macroscopic scale. In the present study, we report a simple version of block copolymer micellar lithography (BCML) to synthesize gold and titanium dioxide (TiO2) nanoarrays by using benzyl alcohol (BnOH) as a solvent. In contrast to toluene, BnOH can lead to the formation of various gold nanopatterns via salt-induced micellization of polystyrene-block- poly(vinylpyridine) (PS-b-P2VP). In the case of titania, the use of BCML with a nonaqueous sol-gel method, the "benzyl alcohol route", enables the fabrication of nanopatterns made of quasi-hexagonally organized particles or parallel wires upon aging a (BnOH-TiCl4-PS846-b-P2VP 171)-containing solution for four weeks to grow TiO2 building blocks in situ. This approach was found to depend mainly on the relative lengths of the polymer blocks, which allows nanoparticle-induced micellization and self-assembly during solvent evaporation. Moreover, this versatile route enables the design of uniform and quasi-ordered gold-TiO 2 binary nanoarrays with a precise particle density due to the absence of graphoepitaxy during the deposition of TiO2 onto gold nanopatterns.
KW - binary nanoarrays
KW - block copolymer micellar lithography
KW - directed self-assembly
KW - in situ growth of nanoparticles
KW - nonaqueous sol-gel process
UR - http://www.scopus.com/inward/record.url?scp=80052057412&partnerID=8YFLogxK
U2 - 10.1021/nn201470f
DO - 10.1021/nn201470f
M3 - Article
C2 - 21774505
AN - SCOPUS:80052057412
VL - 5
SP - 6355
EP - 6364
JO - ACS NANO
JF - ACS NANO
SN - 1936-0851
IS - 8
ER -