Glassy carbon from camphor - a natural source

被引:34
作者
Mukhopadhyay, K [1 ]
Sharon, M [1 ]
机构
[1] INDIAN INST TECHNOL,DEPT CHEM,BOMBAY 400076,MAHARASHTRA,INDIA
关键词
camphor; pyrolysis of camphor; glassy carbon;
D O I
10.1016/S0254-0584(96)01918-9
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Glassy carbon has been synthesized for the first time by a simple pyrolysis experiment. The glassy carbon from camphor has been characterized by XRD, Raman, FTIR, ESR and SEM/AFM techniques. It has been found that the undoped glassy carbon film has a resistance of less than about 1 Omega and has n-type character. However, when it was doped with boron by a conventional vapour growth process, its resistance increased to the range 3.5 Omega-14.5 k Omega, depending upon the concentration of boron incorporated, and the resulting material has p-type character, hence showing a semiconducting behaviour unlike the undoped film which has metallic character.
引用
收藏
页码:105 / 109
页数:5
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