A Raman study of polymerised C60

Invited paper in Special Issue "Polymeric fullerenes", guest editor Hans Kuzmany
Results of Raman scattering studies on high pressure polymerized and photo polymerized C60 are reported. Although prepared according to different routes the Raman spectra of the two polymeric phases of C60 show a quantitative agreement with respect to mode positions and intensity. We conclude from this that both materials have the same structure at least in the short range order, i.e. the same type of bonding and co-ordination between neighbouring C60 molecules. An investigation of the time dependence of the thermal decomposition of high pressure polymerised C60 is also presented. The rate of decomposition of the polymeric phase is found to be multi-exponential at all temperatures investigated. From an Arrhenius-type analysis of the short time data and the long time data, respectively, the activation energy for thermal dissociation of polymeric bonds was found to increase with time.

Persson, Per-AxelUmeå universitet,Institutionen för fysik(Swepub:umu)pepe0001 (author)
Sundqvist, BertilUmeå universitet,Institutionen för fysik(Swepub:umu)besu0001 (author)
Jacobsson, PerUmeå universitet,Institutionen för fysik (author)
Umeå universitetInstitutionen för fysik (creator_code:org_t)

In:Applied Physics A: Springer Science and Business Media LLC64:3, s. 223-2260947-83961432-0630

By the author/editor: Wågberg, Thomas; Persson, Per-Axe ...; Sundqvist, Berti ...; Jacobsson, Per

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Condensed Matter ...

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