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发信人: tobyhome2000 (luo), 信区: Physics 标题: Re: nana letters北大怎么发了那么多？发信站: BBS 珞珈山水站 (Sun Nov 18 14:49:08 2007) 【在 tobyhome2000 (luo) 的大作中提到: 】 : 北大的化学系，物理系应该都是出产大户吧 Ultralow feeding gas flow guiding growth of large-scale horizontally aligned s ingle-walled carbon nanotube arrays Author(s): Jin Z (Jin, Zhong), Chu HB (Chu, Haibin), Wang JY (Wang, Jinyong), Hong JX (Hong, Jinxing), Tan WC (Tan, Wenchang), Li Y (Li, Yan) Source: NANO LETTERS 7 (7): 2073-2079 JUL 2007 Document Type: Article Language: English Cited References: 22 Times Cited: 0 Abstract: On the basis of the rational analysis about the fluidic property of the system, an ultralow gas flow chemical vapor deposition (CVD) strategy was designed to prepare large-scale horizontally aligned ultralong single-walled c arbon nanotube (SWNT) arrays. SWNT arrays could be well obtained under extreme ly low feeding flow of 1.5 sccm in a 1 in. quartz tube reactor. It was confirm ed that the tubes grew floatingly and could cross microtrenches or climb over micro-obstacles in ultraslow gas flow. SWNTs arrays also could be formed no ma tter the substrate was placed vertically or upside down. The growth mechanism was discussed. Both the buoyancy effect induced by gas temperature/density dif ference and gas flow stability played dominant roles. More attractively, simul taneous batch-scale preparation of SWNT arrays was realized by the ultralow ga s flow strategy. This new strategy turns to be more abstemious, efficient, pro mising, and flexible compared with the high gas flow rate fast-heating CVD pro cesses. KeyWords Plus: CHEMICAL-VAPOR-DEPOSITION; LONG; FIELD; TUBE Addresses: Li Y (reprint author), Peking Univ, Beijing Natl Lab Mol Sci, Key L ab Phys & Chem Nanodevices, Coll Chem & Mol Engn,LTCS, Beijing 100871, Peoples R China Peking Univ, Beijing Natl Lab Mol Sci, Key Lab Phys & Chem Nanodevices, Coll C hem & Mol Engn,LTCS, Beijing 100871, Peoples R China Peking Univ, Coll Engn, Dept Mech & Aerosp Engn, Beijing 100871, Peoples R Chi na E-mail Addresses: yanli@pku.edu.cn Publisher: AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA Subject Category: Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary -- ※ 来源:·珞珈山水BBS站 http://bbs.whu.edu.cn·[FROM: 202.114.78.*]
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发信人: tobyhome2000 (luo), 信区: Physics
标题: Re: nana letters北大怎么发了那么多？
发信站: BBS 珞珈山水站 (Sun Nov 18 14:49:08 2007)

【在 tobyhome2000 (luo) 的大作中提到: 】
: 北大的化学系，物理系应该都是出产大户吧

Ultralow feeding gas flow guiding growth of large-scale horizontally aligned s
ingle-walled carbon nanotube arrays
Author(s): Jin Z (Jin, Zhong), Chu HB (Chu, Haibin), Wang JY (Wang, Jinyong),
Hong JX (Hong, Jinxing), Tan WC (Tan, Wenchang), Li Y (Li, Yan)
Source: NANO LETTERS 7 (7): 2073-2079 JUL 2007
Document Type: Article
Language: English
Cited References: 22 Times Cited: 0
Abstract: On the basis of the rational analysis about the fluidic property of
the system, an ultralow gas flow chemical vapor deposition (CVD) strategy was
designed to prepare large-scale horizontally aligned ultralong single-walled c
arbon nanotube (SWNT) arrays. SWNT arrays could be well obtained under extreme
ly low feeding flow of 1.5 sccm in a 1 in. quartz tube reactor. It was confirm
ed that the tubes grew floatingly and could cross microtrenches or climb over
micro-obstacles in ultraslow gas flow. SWNTs arrays also could be formed no ma
tter the substrate was placed vertically or upside down. The growth mechanism
was discussed. Both the buoyancy effect induced by gas temperature/density dif
ference and gas flow stability played dominant roles. More attractively, simul
taneous batch-scale preparation of SWNT arrays was realized by the ultralow ga
s flow strategy. This new strategy turns to be more abstemious, efficient, pro
mising, and flexible compared with the high gas flow rate fast-heating CVD pro
cesses.
KeyWords Plus: CHEMICAL-VAPOR-DEPOSITION; LONG; FIELD; TUBE
Addresses: Li Y (reprint author), Peking Univ, Beijing Natl Lab Mol Sci, Key L
ab Phys & Chem Nanodevices, Coll Chem & Mol Engn,LTCS, Beijing 100871, Peoples
R China
Peking Univ, Beijing Natl Lab Mol Sci, Key Lab Phys & Chem Nanodevices, Coll C
hem & Mol Engn,LTCS, Beijing 100871, Peoples R China
Peking Univ, Coll Engn, Dept Mech & Aerosp Engn, Beijing 100871, Peoples R Chi
na

E-mail Addresses: yanli@pku.edu.cn
Publisher: AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
Subject Category: Chemistry, Multidisciplinary; Nanoscience & Nanotechnology;
Materials Science, Multidisciplinary
--

※ 来源:·珞珈山水BBS站

http://bbs.whu.edu.cn·[FROM: 202.114.78.*]

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