Reproducibility of O- negative ion emission from C12A7 crystal surface

被引：25

作者：

Li, QX

Hayashi, K

Nishioka, M

Kashiwagi, H

Hirano, M

Torimoto, Y

Hosono, H

Sadakata, M

机构：

[1] Univ Tokyo, Sch Engn, Dept Chem Syst Engn, Bunkyo Ku, Tokyo 1138656, Japan

[2] Japan Sci & Technol Corp, ERATO, Hosono Transparent Electroact Mat, Takatsu Ku, Kawasaki, Kanagawa 2130012, Japan

[3] Kao Corp, Prod Technol Inst, Wakayama 6408404, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 2002年 / 41卷 / 5A期

关键词：

O- negative ion; C12AT emission; reproducibility; stability; electrocatalytic reactions; oxygen-pressure dependence; implantation;

D O I：

10.1143/JJAP.41.L530

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Reproducibility, stability and oxygen-pressure dependence of O- negative ion emission from a synthesized crystal 12CaO . 7Al(2)O(3) (C12A7) surface have been investigated. We found the continuous 0 implantation into the C12A7 crystal can be simply realized by supplying electron and oxygen on the Au-deposited C12A7 surface via electrocatalytic reactions. The O- emission from the consumed C12A7 surface was recovered after the implantation operation (O-2: 0.13 Pa: 770degreesC) for 30 minutes. In contrast, the implantation influence on electron emission is negligible. The O emission intensity is nearly constant in the O-2 pressure lower than 1 x 10(-3) Pa. The O- implantation mechanism will be addressed.

引用

页码：L530 / L532

页数：3

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