Stretched polymer nanohairs by nanodrawing

被引：116

作者：

Jeong, Hoon Eul

Lee, Sung Hoon

Kim, Pilnam

Suh, Kahp Y. ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Mech & Aerosp Engn, Seoul 151742, South Korea

[2] Seoul Natl Univ, Inst Adv Machinery & Design, Seoul 151742, South Korea

来源：

NANO LETTERS | 2006年 / 6卷 / 07期

关键词：

D O I：

10.1021/nl061045m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A simple, yet innovative, method is presented for fabricating high-aspect-ratio polymer nanohairs (aspect ratio > 20) on a solid substrate by sequential application of molding and drawing of a thin polymer film. The polymer film was prepared by spin coating on a rigid or flexible substrate, and the temperature was raised above the polymer's glass transition while in conformal contact with a poly(urethane acrylate) mold having nanocavities. Consequently, capillary forces induced deformation of the polymer melt into the void spaces of the mold and the filled nanostructure was further elongated upon removal of the mold due to tailored adhesive force at the mold/polymer interface. The optimum value of the work of adhesion at the mold/polymer interface ranged from 0.9 to 1.1 times that at the substrate/polymer interface.

引用

收藏

页码：1508 / 1513

页数：6

相关论文

共 45 条

[1] High-aspect-ratio bulk micromachining of titanium [J].

Aimi, MF ;

Rao, MP ;

Macdonald, NC ;

Zuruzi, AS ;

Bothman, DP .

NATURE MATERIALS, 2004, 3 (02) :103-105

[2] From micro to nano contacts in biological attachment devices [J].

Arzt, E ;

Gorb, S ;

Spolenak, R .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2003, 100 (19) :10603-10606

[3] Evidence for van der Waals adhesion in gecko setae [J].

Autumn, K ;

Sitti, M ;

Liang, YCA ;

Peattie, AM ;

Hansen, WR ;

Sponberg, S ;

Kenny, TW ;

Fearing, R ;

Israelachvili, JN ;

Full, RJ .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2002, 99 (19) :12252-12256

[4] Adhesive force of a single gecko foot-hair [J].

Autumn, K ;

Liang, YA ;

Hsieh, ST ;

Zesch, W ;

Chan, WP ;

Kenny, TW ;

Fearing, R ;

Full, RJ .

NATURE, 2000, 405 (6787) :681-+

[5] Spontaneous formation of ordered structures in thin films of metals supported on an elastomeric polymer [J].

Bowden, N ;

Brittain, S ;

Evans, AG ;

Hutchinson, JW ;

Whitesides, GM .

NATURE, 1998, 393 (6681) :146-149

[6] Simple detachment patterning of organic layers and its application to organic light-emitting diodes [J].

Choi, JH ;

Kim, D ;

Yoo, PJ ;

Lee, HH .

ADVANCED MATERIALS, 2005, 17 (02) :166-+

[7] A photocurable poly(dimethylsiloxane) chemistry designed for soft lithographic molding and printing in the nanometer regime [J].

Choi, KM ;

Rogers, JA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (14) :4060-4061

[8] An ultraviolet-curable mold for sub-100-nm lithography [J].

Choi, SJ ;

Yoo, PJ ;

Baek, SJ ;

Kim, TW ;

Lee, HH .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (25) :7744-7745

[9]

CHOU SY, 1996, SCIENCE, V272, P5258

[10] Super-hydrophobic surfaces: From natural to artificial [J].

Feng, L ;

Li, SH ;

Li, YS ;

Li, HJ ;

Zhang, LJ ;

Zhai, J ;

Song, YL ;

Liu, BQ ;

Jiang, L ;

Zhu, DB .

ADVANCED MATERIALS, 2002, 14 (24) :1857-1860

← 1 2 3 4 5 →