Electrical properties of the rhombohedral C60 polymers
1999 (English)In: Fullerenes: Recent Advances in the Chemistry and Physics of Fullerenes and Related Materials, vol. 7: Proceedings of the Symposium "Fullerenes: Chemistry, Physics, and New Directions XII", 195th Meeting of the Electrochemical Society, Seattle 1999, Pennington, NJ: The Electrochemical Society , 1999, 628-639 p.Conference paper (Refereed)
Electrical properties of polymerized fullerenes C60 are governed by the type of polymerization which is in turn determined by the initial (P or H) orientation of molecules, the pressure and the temperature of polymerization. The mixed tetragonal - rhombohedral polymerized structure shows a semiconductor-like behavior. An increase in the polymerization temperature results in a decrease in the activation energy and an increase in conductivity. The conductivity prefactor and the activation energy are interconnected by the Meyer-Neldel rule. The pure rhombohedral phase shows highly anisotropic electrical properties. The conductivity in the polymerized (111) planes exhibits a metal-insulator transition and shows the features of 2D weak localization.
Place, publisher, year, edition, pages
Pennington, NJ: The Electrochemical Society , 1999. 628-639 p.
, Electrochemical Society Proceedings, PV 99-12
Fullerenes, C60, high pressure synthesis, polymerization, resistivity, conductivity, tetragonal phase, rhombohedral phase, fullerene polymers, semiconductor, semiconductor-metal transition, Meyer-Neldel rule
Condensed Matter Physics
Research subject Physics
IdentifiersURN: urn:nbn:se:umu:diva-23263ISBN: 1-56677-234-6OAI: oai:DiVA.org:umu-23263DiVA: diva2:222458
Editors: P.V. Kamat, D.M. Guldi and K.M. Kadish2009-06-082009-06-082010-01-25