Numéro
J. Phys. I France
Volume 2, Numéro 1, January 1992
Page(s) 7 - 13
DOI https://doi.org/10.1051/jp1:1992119
DOI: 10.1051/jp1:1992119
J. Phys. I France 2 (1992) 7-13

Synthesis and characterization from Raman spectroscopy of pristine, potassium-doped and rubidium-doped fullerenes C $\mathsf{_{60}}$/C $\mathsf{_{70}}$

A. Zahab, J.L. Sauvajol, L. Firlej, R. Aznar and P. Bernier

Groupe de Dynamique des Phases Condensées U.A. 233, CNRS, Université de Montpellier II, Sciences et Technique du Languedoc, 34059 Montpellier Cedex 05, France


(Received 7 October 1991, revised 12 November 1991, accepted 13 November 1991)

Abstract
The preparation and separation of the C 60/C 70 mixture are described. A comparison between the Raman spectra of C 60, potassium-doped C 60 and rubidium-doped C 60 is presented and analysed. From Raman experiments the role of annealing in the stabilization of the highly conducting phase is evidenced in rubidium-doped C 60.

Résumé
La préparation et la séparation du mélange C 60/C 70 sont décrites. Une comparaison entre les spectres Raman de C 60 et de C 60 dopé au potassium et au rubidium est présentée et analysée. L'effet du recuit sur la stabilisation de la phase la plus conductrice est mise en évidence par diffusion Raman sur le C 60 dopé au rubidium.



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