Fabrication of nanoporous templates from diblock copolymer thin films on alkylchlorosilane-neutralized surfaces.
Fabrication of nanoporous templates from diblock copolymer thin films on alkylchlorosilane-neutralized surfaces.
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在烷基氯硅烷中和的表面上用二嵌段共聚物薄膜制造纳米多孔模板。
DOI:
10.1021/la062594a
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发表时间:
2006
期刊:
影响因子:
--
通讯作者:
S. Baker
中科院分区:
文献类型:
--
作者:
A. Niemz;K. Bandyopadhyay;Eric Tan;Ki;S. Baker
The fabrication of nanoporous templates from poly(styrene)-b-poly(methyl methacrylate) diblock copolymer thin films (PS-b-PMMA, volume ratio 70:30) on silicon requires precise control of interfacial energies to achieve a perpendicular orientation of the PMMA cylindrical microdomains relative to the substrate. To provide a simple, rapid, yet tunable approach for surface neutralization, we investigated the self-assembled ordering of PS-b-PMMA diblock copolymer thin films on silicon substrates modified with a partial monolayer of octadecyldimethyl chlorosilane (ODMS), i.e., a layer of ODMS with a grafting density less than the maximum possible monolayer surface coverage. We demonstrate herein the fabrication of nanoporous PS templates from annealed PS-b-PMMA diblock copolymer thin films on these partial ODMS SAMs.