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Investigations into the Formation of Germanene Using Electrochemical Atomic Layer Deposition (E-ALD)

Ledina, M. A. and Liang, X. and Kim, Y.-G. and Jung, J. and Perdue, B. and Tsang, C. and Soriaga, M. P. and Stickney, J. L. (2015) Investigations into the Formation of Germanene Using Electrochemical Atomic Layer Deposition (E-ALD). ECS Transactions, 66 (6). pp. 129-140. ISSN 1938-6737. doi:10.1149/06606.0129ecst. https://resolver.caltech.edu/CaltechAUTHORS:20180914-100810994

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Abstract

This paper will discuss possible formation of germanene electrochemically. Germanene should be a single layer allotrope of Ge. The techniques of in-situ electrochemical STM (EC-STM), voltammetry, coulometry, and micro-Raman have been used to investigate the electrochemical formation of germanene. Studies on Au(111) show that the initial deposition of Ge is kinetically slow and somewhat unstable, whereas the self-limited layer of Ge is stable and shows atomic distances of about 0.44 nm ± 0.02 nm. Micro-Raman was performed on Ge nanofilms, but only displayed a shift near 290 cm^(-1) in one area. Given the STM results, it appears that the coherence of the germanene domains will need to be increased in order to more consistently produce the Raman signal. The data presented suggest that germanene has been formed electrochemically, although only as a minority species.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1149/06606.0129ecstDOIArticle
ORCID:
AuthorORCID
Kim, Y.-G.0000-0002-5936-6520
Soriaga, M. P.0000-0002-0077-6226
Additional Information:© 2015 ECS - The Electrochemical Society. Acknowledgment is made to the NSF division of Materials Research, #1410109, for support of this research.
Group:JCAP
Funders:
Funding AgencyGrant Number
NSFDMR-1410109
Issue or Number:6
DOI:10.1149/06606.0129ecst
Record Number:CaltechAUTHORS:20180914-100810994
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180914-100810994
Official Citation:Maria Ledina, Xuehai Liang, Youn-Geun Kim, Jin Jung, Brian Perdue, Chu Tsang, Manuel Soriaga, and John Lewellen Stickney (Invited) Investigations into the Formation of Germanene Using Electrochemical Atomic Layer Deposition (E-ALD) ECS Trans. 2015 66(6): 129-140; doi:10.1149/06606.0129ecst
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:89635
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:14 Sep 2018 21:36
Last Modified:16 Nov 2021 00:36

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