Structural and property changes of DLC films after irradiation with gamma ray

被引：0

作者：

Liu, G.A. ^{[1
]}

Xie, E.Q. ^{[1
]}

Wang, T.M. ^{[1
]}

机构：

[1] Dept. of Appl. Phys., Southwest Jiaotong Univ., Chengdu 610031, China

来源：

Gongneng Cailiao/Journal of Functional Materials | 2001年 / 32卷 / 03期

关键词：

Electric resistance - Gamma rays - Infrared transmission - Irradiation - Raman spectroscopy;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Diamond-like carbon films, prepared by rf glow discharge method on glass substrate, were irradiated by γ rays. The as-deposited and irradiated films were characterized by Raman spectroscopy, electrical resistivity, and infrared transmittance. It is shown that the irradiation of the γ ray can lead to the break and decrease of SP3C-H and SP2C-H bonds, the increase of SP3C-C bonds slightly, and induced hydrogen recombination with H2 molecule, subsequently diffusing to the surface of the film. When the irradiation dose of the γ ray reached 10×104 Gy, the numbers of SP3C-H bonds were decreased by about 50%. There was the tendency of ascending in resistivity, the diamond-like character of films is more apparent, and the structure of DLC films was modified when irradiated by γ. The irradiation mechanisms are briefly discussed.

引用

页码：266 / 268