Benzyl alcohol and block copolymer micellar lithography: a versatile route to assembling gold and in situ generated titania nanoparticles into uniform binary nanoarrays
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 go...
Gespeichert in:
| Hauptverfasser: | , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
July 20, 2011
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| In: |
ACS nano
Year: 2011, Jahrgang: 5, Heft: 8, Pages: 6355-6364 |
| ISSN: | 1936-086X |
| DOI: | 10.1021/nn201470f |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/nn201470f
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| Verfasserangaben: | Julien Polleux, Matthias Rasp, Ilia Louban, Nicole Plath, Armin Feldhoff, and Joachim P. Spatz |
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| 245 | 1 | 0 | |a Benzyl alcohol and block copolymer micellar lithography |b a versatile route to assembling gold and in situ generated titania nanoparticles into uniform binary nanoarrays |c Julien Polleux, Matthias Rasp, Ilia Louban, Nicole Plath, Armin Feldhoff, and Joachim P. Spatz |
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| 520 | |a 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-P2VP171)-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-TiO2 binary nanoarrays with a precise particle density due to the absence of graphoepitaxy during the deposition of TiO2 onto gold nanopatterns. | ||
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