Heteropolyatomic gas-phase species produced by laser ablation of lead titanate oxide, studied by laser microprobe mass spectrometry

被引：23

作者：

Chaoui, N ^{[1
]}

Millon, E ^{[1
]}

Muller, JF ^{[1
]}

机构：

[1] Univ Metz, IPEM, Lab Spectrometrie Masse & Chim Laser, F-57078 Metz 3, France

来源：

CHEMISTRY OF MATERIALS | 1998年 / 10卷 / 12期

关键词：

D O I：

10.1021/cm980717+

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：

Frequency tripled Nd:YAG (355 nm) laser ablations of lead titanate in a vacuum (10(-6) mbar) have produced oxide cluster ions identified in positive and negative mode by laser microprobe mass spectrometry (LMMS). It appears that laser ablation of PbTiO3 generates titanium/oxygen, lead/oxygen, and bimetallic lead/titanium/oxygen positive mixed clusters. The formation of negative clusters from PbTiO3 is dominated by the aggregation of pure titanium/oxygen ions. The positive clusters are oxygen-poor as compared to the negative ones. The latter could be efficient oxygen carriers in the pulsed laser deposition of PbTiO3 thin films. In addition, examining the formation process of both negative and positive clusters allowed indentification of significant neutral constituents of the plume.

引用

页码：3888 / 3894

页数：7

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