title: Argon Cluster Sputtering Source for ToF-SIMS Depth Profiling of Insulating Materials: High Sputter Rate and Accurate Interfacial Information.
abstract: The use of an argon cluster ion sputtering source has been demonstrated to perform superiorly relative to traditional oxygen and cesium ion sputtering sources for ToF-SIMS depth profiling of insulating materials. The superior performance has been attributed to effective alleviation of surface charging. A simulated nuclear waste glass (SON68) and layered hole-perovskite oxide thin films were selected as model systems because of their fundamental and practical significance. Our results show that high sputter rates and accurate interfacial information can be achieved simultaneously for argon cluster sputtering, whereas this is not the case for cesium and oxygen sputtering. Therefore, the implementation of an argon cluster sputtering source can significantly improve the analysis efficiency of insulating materials and, thus, can expand its applications to the study of glass corrosion, perovskite oxide thin film characterization, and many other systems of interest.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Beijing Centre for Mass Spectrometry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China.
authors.forename: Zhaoying
authors.initials: Z
authors.lastname: Wang
authors.forename: Bingwen
authors.initials: B
authors.lastname: Liu
authors.forename: Evan W
authors.initials: EW
authors.lastname: Zhao
authors.forename: Ke
authors.initials: K
authors.lastname: Jin
authors.forename: Yingge
authors.initials: Y
authors.lastname: Du
authors.forename: James J
authors.initials: JJ
authors.lastname: Neeway
authors.forename: Joseph V
authors.initials: JV
authors.lastname: Ryan
authors.forename: Dehong
authors.initials: D
authors.lastname: Hu
authors.forename: Kelvin H L
authors.initials: KH
authors.lastname: Zhang
authors.forename: Mina
authors.initials: M
authors.lastname: Hong
authors.forename: Solenne
authors.initials: S
authors.lastname: Le Guernic
authors.forename: Suntharampilai
authors.initials: S
authors.lastname: Thevuthasan
authors.forename: Fuyi
authors.initials: F
authors.lastname: Wang
authors.forename: Zihua
authors.initials: Z
authors.lastname: Zhu
mesh_terms: D001128:Argon / Q000737:chemistry*; D017610:Calcium Compounds; D010087:Oxides; D018629:Spectrometry, Mass, Secondary Ion / Q000379:methods*; D014025:Titanium
chemical_list: D017610:Calcium Compounds; D010087:Oxides; C059910:perovskite; D001128:Argon; D014025:Titanium