On the Electron-Induced Reactions of (CH3)AuP(CH3)(3): A Combined UHV Surface Science and Gas-Phase Study

Kamali A, Bilgilisoy E, Wolfram A, Gentner T, Ballmann G, Harder S, Marbach H, Ingolfsson O (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Nanomaterials MDPI

Book Volume: 12

Journal Issue: 15

DOI: 10.3390/nano12152727

Abstract

Focused-electron-beam-induced deposition (FEBID) is a powerful nanopatterning technique where electrons trigger the local dissociation of precursor molecules, leaving a deposit of non-volatile dissociation products. The fabrication of high-purity gold deposits via FEBID has significant potential to expand the scope of this method. For this, gold precursors that are stable under ambient conditions but fragment selectively under electron exposure are essential. Here, we investigated the potential gold precursor (CH3)AuP(CH3)(3) using FEBID under ultra-high vacuum (UHV) and spectroscopic characterization of the corresponding metal-containing deposits. For a detailed insight into electron-induced fragmentation, the deposit's composition was compared with the fragmentation pathways of this compound through dissociative ionization (DI) under single-collision conditions using quantum chemical calculations to aid the interpretation of these data. Further comparison was made with a previous high-vacuum (HV) FEBID study of this precursor. The average loss of about 2 carbon and 0.8 phosphor per incident was found in DI, which agreed well with the carbon content of the UHV FEBID deposits. However, the UHV deposits were found to be as good as free of phosphor, indicating that the trimethyl phosphate is a good leaving group. Differently, the HV FEBID experiments showed significant phosphor content in the deposits.

Authors with CRIS profile

Elif Bilgilisoy Alperen Lehrstuhl für Physikalische Chemie II Alexander Wolfram Lehrstuhl für Physikalische Chemie II Thomas Gentner Lehrstuhl für Anorganische und Metallorganische Chemie Gerd Ballmann Lehrstuhl für Anorganische und Metallorganische Chemie Sjoerd Harder Lehrstuhl für Anorganische und Metallorganische Chemie Hubertus Marbach Lehrstuhl für Physikalische Chemie II

Involved external institutions

University of Iceland (UI) / Háskóli Íslands IS Iceland (IS)

How to cite

APA:

Kamali, A., Bilgilisoy, E., Wolfram, A., Gentner, T., Ballmann, G., Harder, S.,... Ingolfsson, O. (2022). On the Electron-Induced Reactions of (CH3)AuP(CH3)(3): A Combined UHV Surface Science and Gas-Phase Study. Nanomaterials, 12(15). https://doi.org/10.3390/nano12152727

MLA:

Kamali, Ali, et al. "On the Electron-Induced Reactions of (CH3)AuP(CH3)(3): A Combined UHV Surface Science and Gas-Phase Study." Nanomaterials 12.15 (2022).

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