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Nanoimprinted Glass Substrates for Nanoscale Growth Control of Transparent Conducting Oxide Films

Published online by Cambridge University Press:  31 January 2011

Yuki Sugimoto ,
Yasuyuki Akita ,
Yuta Nakasone ,
Masahiro Mita ,
Hideo Oi  and
Mamoru Yoshimoto
Yuki Sugimoto
Affiliation:
sugimoto.y.ac@m.titech.ac.jpmiracle_woody_and_wonder_boy36@yahoo.co.jp, Tokyo Institute of Technology, Department of Innovative & Engineered Materials, Yokohama, Japan
Yasuyuki Akita
Affiliation:
akita.y.aa@m.titech.ac.jp, Tokyo Institute of Technology, Department of Innovative & Engineered Materials, Yokohama, Japan
Yuta Nakasone
Affiliation:
nakasone.y.aa@m.titech.ac.jp, Tokyo Institute of Technology, Department of Innovative & Engineered Materials, Yokohama, Japan
Masahiro Mita
Affiliation:
mita@kyodo-inc.co.jp, Kyodo International, Kawasaki, Japan
Hideo Oi
Affiliation:
hideo_oi@kyodo-inc.co.jp, Kyodo International, Kawasaki, Japan
Mamoru Yoshimoto
Affiliation:
yoshimoto.m.aa@m.titech.ac.jp, Tokyo Institute of Technology, Department of Innovative & Engineered Materials, Yokohama, Japan
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Abstract

The crystal growth of indium tin oxide (ITO) thin films on nanoimprinted glass substrates was examined by applying pulsed laser deposition. The nanoimprinted glass was fabricated by thermal nanoimprint using a nanostriped NiO thin film mold. The nanopatterned glass had a straight nanowire array with intervals of about 180 nm, and wire height of about 30 nm. The surface morphology of the ITO thin film grown on the nanoimprinted glass accurately reflected the morphology of the glass surface nanopattern. The ITO thin film on the imprinted glass exhibited preferentially (111)-oriented polycrystalline growth, and had 35% lower resistivity in the direction perpendicular to the nanowire array than that of the film grown on the nonpatterned commercial glass.

Keywords

nanoscaletransparent conductorphysical vapor deposition (PVD)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1228: Symposium KK – Nanoscale Pattern Formation , 2009 , 1228-KK11-16
Copyright
Copyright © Materials Research Society 2010

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