Graphitization of polymer surfaces by low-energy ion irradiation

被引：21

作者：

Lazareva, I. ^{[1
]}

Koval, Y. ^{[1
]}

Alam, M. ^{[1
]}

Stroemsdoerfer, S. ^{[1
]}

Mueller, P. ^{[1
]}

机构：

[1] Univ Erlangen Nurnberg, Phys Inst 3, D-91058 Erlangen, Germany

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 26期

关键词：

D O I：

10.1063/1.2752738

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The surface of several polymers was graphitized by low-energy ion irradiation. Their conducting properties were studied as a function of the energy of the ions and the irradiation temperature. It was found that at rather modest ion energies (similar to 1000 eV) and irradiation temperatures (< 400 degrees C), polymer surfaces transform to a graphitized state. The graphitized layer consists of overlapping graphite islands with a diameter of 1-3 nm and exhibits a semimetallic conductivity. Gradually reducing the energy of the ions and the irradiation temperature, the authors observed a transition from semimetallic to variable range hopping conductivity. (c) 2007 American Institute of Physics.

引用

页数：3

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