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Title: In situ time-resolved measurements of carbon nanotube and nanohorn growth

Abstract

Growth mechanisms of carbon nanotubes are investigated and compared for both high- and low-temperature synthesis methods through experiments utilizing time-resolved, in situ imaging and spectros-copy. High-speed videography and pyrometry measured the timeframes for growth for single-wall car-bon nanotubes (SWNTs) and nanohorns (SWNHs) by laser vaporization (LV) at 1150 C, revealing that C can self-assemble at high temperatures preferentially into SWNH structures without catalyst assistance at rates comparable to catalyst-assisted SWNT growth by either laser vaporization or chemical vapor depo-sition (CVD). Laser interferometry and videography reveal the coordinated growth of vertically-aligned nanotube arrays (VANTAs) by CVD at 550-900 C.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Center for Nanophase Materials Sciences
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Science (SC)
OSTI Identifier:
1018568
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physica Status Solidi B; Journal Volume: 244; Journal Issue: 11
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CARBON; CATALYSTS; CHEMICAL VAPOR DEPOSITION; EVAPORATION; INTERFEROMETRY; LASERS; NANOTUBES; SPECTROSCOPY; SYNTHESIS; Single-wall carbon nanotubes; growth mechanisms; in situ diagnostics.

Citation Formats

Geohegan, David B, Puretzky, Alexander A, Styers-Barnett, David J, Hu, Hui, Zhao, Bin, Cui, Hongtao, Rouleau, Christopher M, Eres, Gyula, Jackson, Jeremy Joseph, Wood, Richard F, Pannala, Sreekanth, and Wells, Jack C. In situ time-resolved measurements of carbon nanotube and nanohorn growth. United States: N. p., 2007. Web. doi:10.1002/pssb.200776204.
Geohegan, David B, Puretzky, Alexander A, Styers-Barnett, David J, Hu, Hui, Zhao, Bin, Cui, Hongtao, Rouleau, Christopher M, Eres, Gyula, Jackson, Jeremy Joseph, Wood, Richard F, Pannala, Sreekanth, & Wells, Jack C. In situ time-resolved measurements of carbon nanotube and nanohorn growth. United States. doi:10.1002/pssb.200776204.
Geohegan, David B, Puretzky, Alexander A, Styers-Barnett, David J, Hu, Hui, Zhao, Bin, Cui, Hongtao, Rouleau, Christopher M, Eres, Gyula, Jackson, Jeremy Joseph, Wood, Richard F, Pannala, Sreekanth, and Wells, Jack C. Mon . "In situ time-resolved measurements of carbon nanotube and nanohorn growth". United States. doi:10.1002/pssb.200776204.
@article{osti_1018568,
title = {In situ time-resolved measurements of carbon nanotube and nanohorn growth},
author = {Geohegan, David B and Puretzky, Alexander A and Styers-Barnett, David J and Hu, Hui and Zhao, Bin and Cui, Hongtao and Rouleau, Christopher M and Eres, Gyula and Jackson, Jeremy Joseph and Wood, Richard F and Pannala, Sreekanth and Wells, Jack C},
abstractNote = {Growth mechanisms of carbon nanotubes are investigated and compared for both high- and low-temperature synthesis methods through experiments utilizing time-resolved, in situ imaging and spectros-copy. High-speed videography and pyrometry measured the timeframes for growth for single-wall car-bon nanotubes (SWNTs) and nanohorns (SWNHs) by laser vaporization (LV) at 1150 C, revealing that C can self-assemble at high temperatures preferentially into SWNH structures without catalyst assistance at rates comparable to catalyst-assisted SWNT growth by either laser vaporization or chemical vapor depo-sition (CVD). Laser interferometry and videography reveal the coordinated growth of vertically-aligned nanotube arrays (VANTAs) by CVD at 550-900 C.},
doi = {10.1002/pssb.200776204},
journal = {Physica Status Solidi B},
number = 11,
volume = 244,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}