sp/sp(2) amorphous carbon mixtures have been deposited by pulsed jet cooled supersonic carbon beams using graphite and polytetrafluoroethylene (PTFE) as target materials in a pulsed laser vaporization source. The investigated structure and composition reveal the formation of hydrogenated and fluorinated carbons, with the latter embedded in a PTFE-like matrix. There is a relevant structural difference between the two classes of samples in both the sp and sp(2) subsystems, but a similar behavior in the degradation kinetics performed by dry air exposure was observed by Raman spectroscopy. Kinetic results are discussed with relation to the separate degradation of double- and triple-bonded carbon sp chains in the films.
sp/sp(2) amorphous carbon mixtures have been deposited by pulsed jet cooled supersonic carbon beams using graphite and polytetrafluoroethylene (PTFE) as target materials in a pulsed laser vaporization source. The investigated structure and composition reveal the formation of hydrogenated and fluorinated carbons, with the latter embedded in a PTFE-like matrix. There is a relevant structural difference between the two classes of samples in both the sp and sp(2) subsystems, but a similar behavior in the degradation kinetics performed by dry air exposure was observed by Raman spectroscopy. Kinetic results are discussed with relation to the separate degradation of double- and triple-bonded carbon sp chains in the films.
Vibrational and photoelectron investigation of amorphous fluorinated carbon films
D'URSO, LUISA;COMPAGNINI, Giuseppe Romano;PUGLISI, Orazio Gaetano;Scandurra Antonino;
2007-01-01
Abstract
sp/sp(2) amorphous carbon mixtures have been deposited by pulsed jet cooled supersonic carbon beams using graphite and polytetrafluoroethylene (PTFE) as target materials in a pulsed laser vaporization source. The investigated structure and composition reveal the formation of hydrogenated and fluorinated carbons, with the latter embedded in a PTFE-like matrix. There is a relevant structural difference between the two classes of samples in both the sp and sp(2) subsystems, but a similar behavior in the degradation kinetics performed by dry air exposure was observed by Raman spectroscopy. Kinetic results are discussed with relation to the separate degradation of double- and triple-bonded carbon sp chains in the films.File | Dimensione | Formato | |
---|---|---|---|
JPCCaFC2007.pdf
solo gestori archivio
Tipologia:
Documento in Post-print
Dimensione
92.51 kB
Formato
Adobe PDF
|
92.51 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.