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High pressure and high temperature induced polymeric C60 nanocrystal
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2008 (English)In: Diamond and related materials, vol. 17, issue 4-5: Proceedings of the International Conference on New Diamond and Nano Carbons 2007 (NDNC2007), Amsterdam: Elsevier B.V. , 2008, 620-623 p.Conference paper (Refereed)
Abstract [en]

In this paper, C60 nanosheets with polymeric phases have been obtained under various high pressures and high temperatures, including orthorhombic and tetragonal polymeric phases. The structures have been identified and compared with those of nanorods by photoluminescence and Raman spectroscopies. The main fluorescence band shifted from 1.70 eV in the monomeric phase to near infrared in the polymeric phase when pressure and temperature were increased. The difference of photoluminescence and Raman spectra between nanosheets and nanorods samples treated under the same conditions is probably caused by different polymerization degree in these samples because of different shapes.

Place, publisher, year, edition, pages
Amsterdam: Elsevier B.V. , 2008. 620-623 p.
, Diamond and Related Materials, ISSN 0925-9635 ; 17
Keyword [en]
Fullerenes, C60, nanoparticles, nanorods, nanosheets, polymers, polymerization, high pressure, orthorhombic, tetragonal, Raman spectroscopy, photoluminescence
National Category
Condensed Matter Physics
URN: urn:nbn:se:umu:diva-9610DOI: 10.1016/j.diamond.2007.10.033OAI: diva2:149281
Available from: 2008-05-02 Created: 2008-05-02 Last updated: 2015-09-28Bibliographically approved

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Iwasiewicz-Wabnig, AgnieszkaSundqvist, Bertil
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Department of Physics
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