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원자제어 저차원 전자계 연구단
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High-Conductivity Two-Dimensional Polyaniline Nanosheets Developed on Ice Surfaces

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Title
High-Conductivity Two-Dimensional Polyaniline Nanosheets Developed on Ice Surfaces
Author(s)
Choi I.Y.; Lee J.; Ahn H.; Jinho Lee; Hee Cheul Choi; Park M.J.
Publication Date
2015-09
Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.54, no.36, pp.10497 - 10501
Publisher
WILEY-V C H VERLAG GMBH
Abstract
A new method to develop two-dimensional PANI nanosheets using ice as a removable hard template is presented. Distinctly high current flows of 5.5 mA at 1 V and a high electrical conductivity of 35 S cm-1 were obtained for the polyaniline (PANI) nanosheets, which marked a significant improvement from previously values on other PANIs reported over the past decades. These improved electrical properties of ice-templated PANI nanosheets were attributed to the long-range ordered edge-on π-stacking of the quinoid ring, ascribed to the ice surface-assisted vertical growth of PANI. The unprecedented advantages of the ice-templated PANI nanosheets are two-fold. First, the PANI nanosheet can be easily transferred onto various types of substrates via float-off from the ice surfaces. Second, PANI can be patterned into any shape using predetermined masks, and this is expected to facilitate the eventual convenient and inexpensive application of conducting polymers in versatile electronic device forms. A cool way to conduct: Ice is used as a removable hard template to form two-dimensional polyaniline (PANI) nanosheets. High current flows (5.5 mA at 1 V) and high electrical conductivity (35 S cm-1) were obtained for the nanosheets. The PANI nanosheet can be easily transferred onto various types of substrates from the ice surfaces, and the nanosheets can be patterned into any shape using predetermined masks. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
URI
https://pr.ibs.re.kr/handle/8788114/1893
ISSN
1433-7851
Appears in Collections:
Center for Artificial Low Dimensional Electronic Systems(원자제어 저차원 전자계 연구단) > Journal Papers (저널논문)
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