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Raman spectroscopy ...
Raman spectroscopy study of carbon nanotube peapods excited by near-IR laser under high pressure
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Zou, Yonggang (author)
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Liu, Bingbing (author)
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Yao, Mingguang (author)
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Hou, Yuanyuan (author)
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Wang, Lin (author)
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Yu, Shidan (author)
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Wang, Peng (author)
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Li, Bing (author)
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Zou, Bo (author)
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Cui, Tian (author)
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Zou, Guangtian (author)
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- Wågberg, Thomas (author)
- Umeå universitet,Institutionen för fysik
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- Sundqvist, Bertil (author)
- Umeå universitet,Institutionen för fysik
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(creator_code:org_t)
- 2007
- 2007
- Swedish.
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In: Physical Review B. - 0163-1829. ; 76:19, s. 195417-
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http://scitation.aip...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- A resonant Raman spectroscopy study has been carried out under high pressure, using a diamond anvil cell,on carbon nanotube peapods (C60@SWNT) synthesized in high yield in our laboratory. The Raman signal wasexcited by a near IR laser (830 nm) to avoid photopolymerization of C60 and thus obtain the intrinsic vibrationalinformation on the C60 molecules in the nanotubes. It is found that the surrounding tubes create aneffective pressure on the encapsulated C60 due to tube-fullerene interactions, resulting in a shift of the intrinsicAg(2) vibrational mode to 1474 cm−1 at ambient pressure. High pressure Raman spectroscopy indicates that(C60)2 dimers form near 1 GPa, and that a further polymerization of C60 occurs near 23 GPa, creating linearchains of covalently linked C60 molecules in the tubes.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- C60
- peapods
- C60@SWNT
- carbon nanotube
- high pressure
- Raman scattering
- IR excitation
- dimer
- polymer
- linear chain
- Condensed matter physics
- Kondenserade materiens fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Zou, Yonggang
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Liu, Bingbing
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Yao, Mingguang
-
Hou, Yuanyuan
-
Wang, Lin
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Yu, Shidan
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show more...
-
Wang, Peng
-
Li, Bing
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Zou, Bo
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Cui, Tian
-
Zou, Guangtian
-
Wågberg, Thomas
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Sundqvist, Berti ...
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Physical Review ...
- By the university
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Umeå University