Laser ablation synthesis of lanthanide oxide clusters: Mechanisms and chemistry

Journal Article · Sat Jul 15 04:00:00 EDT 1995 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.360369· OSTI ID:71478

Gibson, J K ^[1]

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1. Chemical and Analytical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6375 (United States)

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{sub {ital m}}O{sup +}{sub {ital n}}), mixed lanthanide oxide clusters [Ln{sub {ital m}1}Ln{sub {ital m}2}{sup {prime}}O{sup +}{sub {ital n}} with ({ital m}1+{ital m}2){le}9] were discerned for the following Ln-Ln{prime}: 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. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

• Research Organization: Oak Ridge National Laboratory
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 71478
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 2 Vol. 78; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABLATION
CHEMICAL PROPERTIES
HOLMIUM OXIDES
LANTHANUM OXIDES
LASER RADIATION
LUTETIUM OXIDES
MASS SPECTRA
SOLID CLUSTERS
STOICHIOMETRY
SYNTHESIS
TERBIUM OXIDES