Mesoporous SiO2 and Nb2O5 thin films with large spherical mesopores through self-assembly of diblock copolymers: unusual conversion to cuboidal mesopores by Nb2O5 crystal growth

Norihiro Suzuki; Masataka Imura; Yoshihiro Nemoto; Xiangfen Jiang; Yusuke Yamauchi

doi:10.1039/C0CE00507J

Mesoporous SiO₂ and Nb₂O₅ thin films with large spherical mesopores through self-assembly of diblock copolymers: unusual conversion to cuboidal mesopores by Nb₂O₅ crystal growth

Norihiro Suzuki,^a Masataka Imura,^a Yoshihiro Nemoto,^a Xiangfen Jiang^a^b and Yusuke Yamauchi*^a^b^c

* Corresponding authors

^a World Premier International (WPI) Research Center for Materials Nanoarchtectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Japan
E-mail: YAMAUCHI.Yusuke@nims.go.jp

^b Faculty of Science and Engineering, Waseda University, Ohkubo 3-4-1, Shinjuku, Japan

^c Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), 2-1 Hirosawa, Wako, Japan

Abstract

Mesoporous silica and niobia thin films are fabricated by using precursor solutions including PS-b-PEO diblock copolymers. The mesopore arrangements are strongly affected by dip-coating speeds during the film formation. With the decrease of the coating speeds, the mesopores were more closely packed each other.

Supplementary files

Publication details

The article was received on 07 Aug 2010, accepted on 28 Sep 2010 and first published on 22 Oct 2010

Article type: Communication

DOI: 10.1039/C0CE00507J

Citation: CrystEngComm, 2011,13, 40-43

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Mesoporous SiO₂ and Nb₂O₅ thin films with large spherical mesopores through self-assembly of diblock copolymers: unusual conversion to cuboidal mesopores by Nb₂O₅ crystal growth

N. Suzuki, M. Imura, Y. Nemoto, X. Jiang and Y. Yamauchi, CrystEngComm, 2011, 13, 40
DOI: 10.1039/C0CE00507J
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CrystEngComm

Mesoporous SiO₂ and Nb₂O₅ thin films with large spherical mesopores through self-assembly of diblock copolymers: unusual conversion to cuboidal mesopores by Nb₂O₅ crystal growth

Abstract

Supplementary files

Publication details

Mesoporous SiO₂ and Nb₂O₅ thin films with large spherical mesopores through self-assembly of diblock copolymers: unusual conversion to cuboidal mesopores by Nb₂O₅ crystal growth

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