SURFACE-STRUCTURE OF A GLASSY-CARBON - SCANNING TUNNELING MICROSCOPY STUDY

被引：15

作者：

BROWN, NMD

YOU, HX

机构：

[1] Surface Science Laboratory, Department of Applied Physical Sciences, University of Ulster, Coleraine

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1991年 / 1卷 / 03期

关键词：

SCANNING TUNNELING MICROSCOPY; GLASSY CARBON; SURFACE STRUCTURE; TOPOGRAPHY;

D O I：

10.1039/jm9910100469

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：

Scanning tunnelling microscopy (STM) has been used to study the topographical details of the surface structure of a glassy carbon at ultra-high resolution. In addition to small, localised graphite-like domains < 50 angstrom x 50 angstrom in area, the STM images of the glassy carbon studies, taken in the constant-tunnel-current mode in air, are in general characterized by two topographical features: (i) a granular structure with grain sizes typically in the range 80.0-250.0 angstrom in some surface locations and (ii) straight or curved fibrillar structures lying side by side, in other surface locations. The latter are considered to reflect the residual structure of the polymer chains initially present during processing of the material.

引用

页码：469 / 472

页数：4

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