Effect of buffer layer deposition on diameter and alignment of carbon nanotubes in water-assisted chemical vapor deposition

被引：2

作者：

Patole, Shashikant P. ^{[1
,2
]}

Jeong, Jae-Hun ^{[1
]}

Yu, Seong Man ^{[2
]}

Kim, Ha-Jin ^{[3
]}

Han, Jae-Hee ^{[4
]}

Han, In-Taek ^{[3
]}

Yoo, Ji-Beom ^{[1
,2
]}

机构：

[1] Sungkyunkwan Univ, Sch Adv Mat Sci & Engn, Suwon 440746, South Korea

[2] Sungkyunkwan Univ, SKKU Adv Inst Nanotechnol SAINT, Suwon 440746, South Korea

[3] SAIT, Mat Applicat Grp, Yongin 446712, South Korea

[4] Gachon Univ, Dept Energy IT, Songnam 461701, South Korea

来源：

APPLIED SURFACE SCIENCE | 2013年 / 271卷

基金：

新加坡国家研究基金会;

关键词：

Carbon nanotubes; Buffer layer; Catalyst; Surface topography; Growth mechanism; SUPER GROWTH;

D O I：

10.1016/j.apsusc.2012.12.129

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：

Vertically aligned carbon nanotubes (CNTs) grown by water-assisted chemical vapor deposition have revealed differences in structure and morphology depending on the deposition rate of the Al buffer layer. Rearrangement of the Fe catalyst during CNT growth is mainly influenced by the buffer layer topography, which in turn depends on the buffer layer deposition rate. A higher deposition rate makes the substrate rougher and causes the growth of more aligned, low diameter CNTs with greater height. In contrast, slow deposition results in a smooth surface, which grows misaligned, large diameter CNTs with less height. Based on the results, a CNT growth model has been proposed. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：32 / 38

页数：7

共 33 条

[1] Influence of Alumina Type on the Evolution and Activity of Alumina-Supported Fe Catalysts in Single-Walled Carbon Nanotube Carpet Growth [J].

Amama, Placidus B. ;

Pint, Cary L. ;

Kim, Seung Min ;

McJilton, Laura ;

Eyink, Kurt G. ;

Stach, Eric A. ;

Hauge, Robert H. ;

Maruyama, Benji .

ACS NANO, 2010, 4 (02) :895-904

[2] Role of Water in Super Growth of Single-Walled Carbon Nanotube Carpets [J].

Amama, Placidus B. ;

Pint, Cary L. ;

McJilton, Laura ;

Kim, Seung Min ;

Stach, Eric A. ;

Murray, P. Terry ;

Hauge, Robert H. ;

Maruyama, Benji .

NANO LETTERS, 2009, 9 (01) :44-49

[3] Silicon oxide thickness-dependent growth of carbon nanotubes [J].

Cao, AY ;

Ajayan, PM ;

Ramanath, G ;

Baskaran, R ;

Turner, K .

APPLIED PHYSICS LETTERS, 2004, 84 (01) :109-111

[4] Diameter-controlled synthesis of carbon nanotubes [J].

Cheung, CL ;

Kurtz, A ;

Park, H ;

Lieber, CM .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (10) :2429-2433

[5] Synthesis of ultra long vertically aligned carbon nanotubes using the rapid heating and cooling system in the thermal chemical vapor deposition process [J].

Chiu, CC ;

Tsai, TY ;

Tai, NH ;

Lee, CY .

SURFACE & COATINGS TECHNOLOGY, 2006, 200 (10) :3215-3219

[6] The influence of catalyst chemical state and morphology on carbon nanotube growth [J].

de los Arcos, T ;

Garnier, MG ;

Seo, JW ;

Oelhafen, P ;

Thommen, V ;

Mathys, D .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (23) :7728-7734

[7] Processing of mesocarbon microbeads to high-performance materials: Part I. Studies towards the sintering mechanism [J].

Norfolk, C ;

Mukasyan, A ;

Hayes, D ;

McGinn, P ;

Varma, A .

CARBON, 2004, 42 (01) :11-19

[8] Is aluminum a suitable buffer layer for carbon nanotube growth? [J].

de los Arcos, T ;

Wu, ZM ;

Oelhafen, P .

CHEMICAL PHYSICS LETTERS, 2003, 380 (3-4) :419-423

[9] Molecular beam-controlled nucleation and growth of vertically aligned single-wall carbon nanotube arrays [J].

Eres, G ;

Kinkhabwala, AA ;

Cui, HT ;

Geohegan, DB ;

Puretzky, AA ;

Lowndes, DH .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (35) :16684-16694

[10] Self-oriented regular arrays of carbon nanotubes and their field emission properties [J].

Fan, SS ;

Chapline, MG ;

Franklin, NR ;

Tombler, TW ;

Cassell, AM ;

Dai, HJ .

SCIENCE, 1999, 283 (5401) :512-514

← 1 2 3 4 →