Conductive phosphate and fluorophosphate glasses with fullerene doping

Citation
Hp. Zeng et al., Conductive phosphate and fluorophosphate glasses with fullerene doping, APPL PHYS L, 79(9), 2001, pp. 1276-1278
Citations number
17
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
0003-6951 → ACNP
Volume
79
Issue
9
Year of publication
2001
Pages
1276 - 1278
Database
ISI
SICI code
0003-6951(20010827)79:9<1276:CPAFGW>2.0.ZU;2-E
Abstract
The appropriate amount of fullerene doping in phosphate and fluorophosphate optical glasses modifies the structures of glass matrices by bonding the n earby -[PO4]- tetrahedra with nonbridging oxygen anions, and consequently b uilding up observable conductivity at room temperature. Non-Arrhenius ionic conductivity is observed, which is interpreted as a result of the temperat ure dependence of the activation energies of the mobile cations. The variat ion of microphotoluminescence induced by the electric field presents us wit h an indirect way to characterize the random activation, percolation migrat ion, and retrap of metal cations near fullerene-related amorphous islands. (C) 2001 American Institute of Physics.