Fabrication and electrical conductivity of suspended carbon nanofiber arrays

被引：62

作者：

Sharma, Chandra S. ^{[1
,2
]}

Katepalli, Hari ^{[1
,2
]}

Sharma, Ashutosh ^{[1
,2
]}

Madou, Marc ^{[3
,4
]}

机构：

[1] Indian Inst Technol, Dept Chem Engn, Kanpur 208016, Uttar Pradesh, India

[2] Indian Inst Technol, DST Unit Nanosci, Kanpur 208016, Uttar Pradesh, India

[3] Univ Calif Irvine, Dept Mech & Aerosp & Biomed Engn, Irvine, CA 92697 USA

[4] Ulsan Natl Inst Sci & Technol, Ulsan 689798, South Korea

来源：

CARBON | 2011年 / 49卷 / 05期

关键词：

MICROELECTROMECHANICAL SYSTEMS; NANOTUBE INTERCONNECTS; INTEGRATED-CIRCUIT; PYROLYSIS; MICROSTRUCTURES; TEMPERATURE; NANOWIRES; EVOLUTION; DEVICES; MEMS;

D O I：

10.1016/j.carbon.2010.12.058

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We demonstrate a simple, efficient and novel self-assembly based method to fabricate arrays of suspended polymeric nanofibers of polyacrylonitrile and SU-8 negative photoresist by electrospinning on micro-fabricated posts of resorcinol-formaldehyde (RF) gel. The suspended electrospun nanofibers together with the RF gel posts were subsequently pyrolyzed in an inert atmosphere to yield large area monolithic structures of suspended glassy carbon nanofibers (CNF) integrated on RF gel derived carbon posts. The electrospun nanofibers self-assemble to connect the posts owing to a stronger electric field on their tips, obviating the need for positioning and integration of carbon nanowires with the underlying microstructures and paving the way for fabricating novel carbon based micro and nano-scale devices. The fabrication technique also allowed measurements of electrical conductivity of a single suspended CNF between carbon electrodes using I-V characteristics and comparison of the carbon nanowire conductivities for the CNF derived from different polymer precursors. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1727 / 1732

页数：6

共 29 条

[1] Preparation and properties of resorcinol-formaldehyde organic and carbon gels [J].

Al-Muhtaseb, SA ;

Ritter, JA .

ADVANCED MATERIALS, 2003, 15 (02) :101-+

[2] Suspended carbon nanotube quantum wires with two gates [J].

Cao, H ;

Wang, Q ;

Wang, DW ;

Dai, HJ .

SMALL, 2005, 1 (01) :138-141

[3] Fabrication and characterization of carbon nanotube interconnects [J].

Close, Gael F. ;

Wong, H. -S. Philip .

2007 IEEE INTERNATIONAL ELECTRON DEVICES MEETING, VOLS 1 AND 2, 2007, :203-+

[4] A 1 GHz integrated circuit with carbon nanotube interconnects and silicon transistors [J].

Close, Gael F. ;

Yasuda, Shinichi ;

Paul, Bipul ;

Fujita, Shinobu ;

Wong, H. -S. Philip .

NANO LETTERS, 2008, 8 (02) :706-709

[5] Measurement of Subnanosecond Delay Through Multiwall Carbon-Nanotube Local Interconnects in a CMOS Integrated Circuit [J].

Close, Gael F. ;

Yasuda, Shinichi ;

Paul, Bipul C. ;

Fujita, Shinobu ;

Wong, H. -S. Philip .

IEEE TRANSACTIONS ON ELECTRON DEVICES, 2009, 56 (01) :43-49

[6] Nanowire nanosensors for highly sensitive and selective detection of biological and chemical species [J].

Cui, Y ;

Wei, QQ ;

Park, HK ;

Lieber, CM .

SCIENCE, 2001, 293 (5533) :1289-1292

[7] The integration of nanowires and nanotubes with microstructures [J].

Englander, Ongi ;

Christensen, Dane ;

Lin, Liwei .

INTERNATIONAL JOURNAL OF MATERIALS & PRODUCT TECHNOLOGY, 2009, 34 (1-2) :77-94

[8] Integration of suspended carbon nanotube arrays into electronic devices and electromechanical systems [J].

Franklin, NR ;

Wang, Q ;

Tombler, TW ;

Javey, A ;

Shim, M ;

Dai, HJ .

APPLIED PHYSICS LETTERS, 2002, 81 (05) :913-915

[9] Forming highly ordered arrays of functionalized polymer nanowires by dewetting on micropillars [J].

Guan, Jingjiao ;

Yu, Bo ;

Lee, L. James .

ADVANCED MATERIALS, 2007, 19 (09) :1212-+

[10] Direct drawing of suspended filamentary micro- and nanostructures from liquid polymers [J].

Harfenist, SA ;

Cambron, SD ;

Nelson, EW ;

Berry, SM ;

Isham, AW ;

Crain, MM ;

Walsh, KM ;

Keynton, RS ;

Cohn, RW .

NANO LETTERS, 2004, 4 (10) :1931-1937

← 1 2 3 →