Synergistic Formation of Radicals by Irradiation with Both Vacuum Ultraviolet and Atomic Hydrogen: A Real-Time In Situ Electron Spin Resonance Study

被引：16

作者：

Ishikawa, Kenji ^{[1
]}

Sumi, Naoya ^{[1
]}

Kono, Akihiko ^{[2
]}

Horibe, Hideo ^{[2
]}

Takeda, Keigo ^{[1
]}

Kondo, Hiroki ^{[1
]}

Sekine, Makoto ^{[1
]}

Hori, Masaru ^{[1
]}

机构：

[1] Nagoya Univ, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[2] Kanazawa Inst Technol, Haku San, Ishikawa 9240838, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2011年 / 2卷 / 11期

关键词：

PLASMA TREATMENT; PTFE SURFACES; DIAMOND; FILMS; ESR; DEPOSITION; CREATION; OXYGEN;

D O I：

10.1021/jz2002937

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：

We report on the surface modification of poly(tetrafluoroethylene) (PTFE) as an example of soft materials and biomaterials that occur under plasma discharge by kinetics analysis of radical formation using in situ real-time electron spin resonance (ESR) measurements. During irradiation with hydrogen plasma, simultaneous measurements of the gas-phase ESR signals of atomic hydrogen and the carbon dangling bond (C-DB) on PTFE were performed. Dynamic changes of the C-DB density were observed in real time, where the rate of density change was accelerated during initial irradiation and then became constant over time. It is noteworthy that C-DBs were formed synergistically by irradiation with both vacuum ultraviolet (VUV) and atomic hydrogen. The in situ real-time ESR technique is useful to elucidate synergistic roles during plasma surface modification.

引用

页码：1278 / 1281

页数：4

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