Journal ArticleDOI
XPS study of thermal and electron-induced decomposition of Ni and Co acetylacetonate thin films for metal deposition
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In this article, the preparation of layers of undecomposed Ni(acac)2 and Co-acac2 was tried via pulsed spray evaporation of a liquid solution of the precursors in ethanol into a flow of nitrogen on a CVD reactor.Abstract:
Optimizing thin metal film deposition techniques from metal-organic precursors such as atomic layer deposition, chemical vapor deposition (CVD), or electron beam-induced deposition (EBID) with the help of surface science analysis tools in ultrahigh vacuum requires a contamination-free precursor delivery technique, especially in the case of the less volatile precursors. For this purpose, the preparation of layers of undecomposed Ni(acac)2 and Co(acac)2 was tried via pulsed spray evaporation of a liquid solution of the precursors in ethanol into a flow of nitrogen on a CVD reactor. Solvent-free layers of intact precursor molecules were obtained when the substrate was held at a temperature of 115 °C. A qualitative comparison of thermally initiated and electron-induced precursor decomposition and metal center reduction was carried out. All deposited films were analyzed with respect to chemical composition quasi in situ by x-ray photoelectron spectroscopy. Thermally initiated decomposition yielded higher metal...read more
Citations
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Direct investigation on energy bandgap of Si added ZnSnO system for stability enhancement by X-ray photoelectron spectroscopy
Byeong Hyeon Lee,Dooyong Lee,Ahrum Sohn,Ahrum Sohn,Sungkyun Park,Dong-Wook Kim,Sang Yeol Lee +6 more
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Ni-based electrocatalysts for unconventional CO2 reduction reaction to formic acid
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Coordination and organometallic precursors of group 10 and 11: Focused electron beam induced deposition of metals and insight gained from chemical vapour deposition, atomic layer deposition, and fundamental surface and gas phase studies
Ivo Utke,Petra Swiderek,Katja Höflich,Katarzyna Madajska,Jakub Jurczyk,Petra Martinović,Iwona Szymańska +6 more
TL;DR: In this paper , the performance and underlying chemical reactions of surface deposition processes, namely, chemical vapour deposition (CVD), atomic layer deposition (ALD), and focused electron beam induced deposition (FEBID), are reviewed in a comparative manner.
Journal ArticleDOI
Interaction of gas phase copper(II) acetylacetonate with slow electrons
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Treatment of surfaces with low-energy electrons
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References
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Journal ArticleDOI
Resolving surface chemical states in XPS analysis of first row transition metals, oxides and hydroxides: Sc, Ti, V, Cu and Zn
TL;DR: Biesinger et al. as mentioned in this paper proposed a more consistent and effective approach to curve fitting based on a combination of standard spectra from quality reference samples, a survey of appropriate literature databases and/or a compilation of literature references and specific literature references where fitting procedures are available.
Journal ArticleDOI
Empirical atomic sensitivity factors for quantitative analysis by electron spectroscopy for chemical analysis
TL;DR: In this article, an empirical set has been developed, based upon data from 135 compounds of 62 elements, for which the sensitivity factors are based on intensity ratios of spectral lines with F1s as a primary standard, value unity, and K2p3/2 as a secondary standard.
Journal ArticleDOI
Systematic XPS studies of metal oxides, hydroxides and peroxides
TL;DR: In this article, the results of a systematic XPS study, under high controlled conditions, of different basic oxides of transition metals, alkali and alkaline-earth metals are presented; the XPS data of some hydroxides and peroxides are also reported.
Journal ArticleDOI
New interpretations of XPS spectra of nickel metal and oxides
Andrew P. Grosvenor,Mark C. Biesinger,Roger St. C. Smart,Roger St. C. Smart,N. Stewart McIntyre +4 more
TL;DR: In this paper, a scheme for fitting the Ni 2p spectra using multiplet envelopes is proposed, based on charge transfer assignments of the main peak at 854.6 eV and the broad satellite centred at around 861 eV to the cd 9 L and the unscreened cd 8 final state configurations, respectively.
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