EVALUATION OF THE SP2/SP3 RATIO IN AMORPHOUS-CARBON STRUCTURE BY XPS AND XAES

被引：410

作者：

LASCOVICH, JC

GIORGI, R

SCAGLIONE, S

机构：

[1] Laboratorio Superficie Metallurgia Fisica, ENEA, CRE Casaccia, 00060 Rome

来源：

APPLIED SURFACE SCIENCE | 1991年 / 47卷 / 01期

关键词：

D O I：

10.1016/0169-4332(91)90098-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A comparison among XPS and XAES spectra features of graphite (sp2 bonding), diamond (sp3 bonding), amorphous carbon (i-C) and several hydrogenated amorphous carbon samples (i-C:H) has been carried out. XAES derivative spectra of graphite, i-C and i-C:H samples show a fine structure (275-280 eV) which is assigned to KVV transitions involving p-pi electrons. An estimate of the sp2/sp3 ratio on the basis of the presence of such structures in the spectra has been attempted. Values of the sp2/sp3 ratio between 0.5 and 1.5 have been for hydrogenated samples, whereas for amorphous carbon a value of 3 has been obtained.

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页码：17 / 21

页数：5

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