Dielectrophoretic deposition of graphite oxide soot particles

被引：24

作者：

Hong, Seunghyun ^{[1
]}

Jung, Sehun ^{[2
]}

Kang, Sunjung ^{[2
]}

Kim, Youngjin ^{[1
,2
]}

Chen, Xinqi ^{[3
]}

Stankovich, Sasha ^{[4
]}

Ruoff, S. Rodney ^{[4
]}

Baik, Seunghyun ^{[1
,2
]}

机构：

[1] Sungkyunkwan Univ, SKKU Adv Inst Nanotechnol, Suwon 440746, KyungGi Do, South Korea

[2] Sungkyunkwan Univ, Sch Mech Engn, Suwon 440746, KyungGi Do, South Korea

[3] Northwestern Univ, NUANCE Ctr, Evanston, IL 60208 USA

[4] Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2008年 / 8卷 / 01期

关键词：

dielectrophoresis; graphite oxide soot; positioning; electrical transport measurement;

D O I：

10.1166/jnn.2008.076

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Alternating current dielectrophoresis in water was used to position graphite oxide soot (GO-soot) particles generated by rapid thermal expansion of graphite oxide under inert gas. The dielectrophoretic deposition was carried out at a frequency of 10 MHz and a peak-to-peak voltage of 10 V, and the deposited particles were analyzed using scanning electron microscopy. The vertical cross section, obtained by focused ion beam cutting, shows the wrinkled layers of the GO-soot particles and cavities between the layers. The electrical transport measurements show typical characteristics of metal-like pathways. The improved electrical contact between electrodes and GO-soot, probably due to the thin platelet structure of GO-soot, makes the material favorable for electrical device applications. The results demonstrate that AC dielectrophoresis can be used to selectively deposit graphite oxide soot particles at desired locations.

引用

页码：424 / 427

页数：4

共 20 条

[1]

[Anonymous], ELECTROMECHANISMS PA

[2] Using the selective functionalization of metallic single-walled carbon nanotubes to control dielectrophoretic mobility [J].

Baik, S ;

Usrey, M ;

Rotkina, L ;

Strano, MS .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (40) :15560-15564

[3] THE STRUCTURE OF GRAPHITE OXIDE [J].

BECKETT, RJ ;

CROFT, RC .

JOURNAL OF PHYSICAL CHEMISTRY, 1952, 56 (08) :929-941

[4] Gas-phase production of carbon single-walled nanotubes from carbon monoxide via the HiPco process: A parametric study [J].

Bronikowski, MJ ;

Willis, PA ;

Colbert, DT ;

Smith, KA ;

Smalley, RE .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 2001, 19 (04) :1800-1805

[5] Aligning single-wall carbon nanotubes with an alternating-current electric field [J].

Chen, XQ ;

Saito, T ;

Yamada, H ;

Matsushige, K .

APPLIED PHYSICS LETTERS, 2001, 78 (23) :3714-3716

[6] Raman spectroscopy on isolated single wall carbon nanotubes [J].

Dresselhaus, MS ;

Dresselhaus, G ;

Jorio, A ;

Souza, AG ;

Saito, R .

CARBON, 2002, 40 (12) :2043-2061

[7] The rise of graphene [J].

Geim, A. K. ;

Novoselov, K. S. .

NATURE MATERIALS, 2007, 6 (03) :183-191

[8] Electrical transport characteristics of surface-conductance-controlled, dielectrophoretically separated single-walled carbon nanotubes [J].

Hong, Seunghyun ;

Jung, Sehun ;

Choi, Jaeboong ;

Kim, Youngjin ;

Baik, Seunghyun .

LANGMUIR, 2007, 23 (09) :4749-4752

[9] PREPARATION OF GRAPHITIC OXIDE [J].

HUMMERS, WS ;

OFFEMAN, RE .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1958, 80 (06) :1339-1339

[10] Dielectrophoresis of surface conductance modulated single-walled carbon nanotubes using catanionic surfactants [J].

Kim, Y ;

Hong, S ;

Jung, S ;

Strano, MS ;

Choi, J ;

Baik, S .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (04) :1541-1545

← 1 2 →