LASER-ABLATION SYNTHESIS OF LANTHANIDE OXIDE CLUSTERS - MECHANISMS AND CHEMISTRY

被引：30

作者：

GIBSON, JK

机构：

[1] Chemical and Analytical Sciences Division, Oak Ridge National Laboratory, Oak Ridge

来源：

JOURNAL OF APPLIED PHYSICS | 1995年 / 78卷 / 02期

关键词：

D O I：

10.1063/1.360369

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Excimer laser ablation into vacuum of hydrated lanthanide oxalates has produced new lanthanide (Ln) oxide cluster ions which were identified by time-of-flight mass spectrometry. In addition to binary oxide clusters (Ln mO+n), mixed lanthanide oxide clusters [Ln m1Lnm2'O+n with (m1+m2)≤9] were discerned for the following Ln-Ln': La-Tb, La-Ho, La-Lu, and Ho-Lu. The observed cluster ion stoichiometries, abundance distributions, and hydration systematics provide insights into cluster formation mechanisms and chemistries. Time-variable ion sampling revealed cluster enhancement in the tail of the ablation plume. The body of experimental results support cluster formation by aggregation of small ablated species. © 1995 American Institute of Physics.

引用

页码：1274 / 1280

页数：7

共 22 条

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