From Crystalline to Amorphous Germania Bilayer Films at the Atomic Scale: Preparation and Characterization

A new two‐dimensional (2D) germanium dioxide film has been prepared. The film consists of interconnected germania tetrahedral units forming a bilayer structure, weakly coupled to the supporting Pt(111) metal‐substrate. Density functional theory calculations predict a stable structure of 558‐membered...

Descripción completa

Detalles Bibliográficos
Autores principales: Lewandowski, Adrián L., Tosoni, Sergio, Gura, Leonard, Schlexer, Philomena, Marschalik, Patrik, Schneider, Wolf‐Dieter, Heyde, Markus, Pacchioni, Gianfranco, Freund, Hans‐Joachim
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6771709/
https://www.ncbi.nlm.nih.gov/pubmed/31050096
http://dx.doi.org/10.1002/anie.201903922
_version_ 1783455749818548224
author Lewandowski, Adrián L.
Tosoni, Sergio
Gura, Leonard
Schlexer, Philomena
Marschalik, Patrik
Schneider, Wolf‐Dieter
Heyde, Markus
Pacchioni, Gianfranco
Freund, Hans‐Joachim
author_facet Lewandowski, Adrián L.
Tosoni, Sergio
Gura, Leonard
Schlexer, Philomena
Marschalik, Patrik
Schneider, Wolf‐Dieter
Heyde, Markus
Pacchioni, Gianfranco
Freund, Hans‐Joachim
author_sort Lewandowski, Adrián L.
collection PubMed
description A new two‐dimensional (2D) germanium dioxide film has been prepared. The film consists of interconnected germania tetrahedral units forming a bilayer structure, weakly coupled to the supporting Pt(111) metal‐substrate. Density functional theory calculations predict a stable structure of 558‐membered rings for germania films, while for silica films 6‐membered rings are preferred. By varying the preparation conditions the degree of order in the germania films is tuned. Crystalline, intermediate ordered and purely amorphous film structures are resolved by analysing scanning tunnelling microscopy images.
format Online
Article
Text
id pubmed-6771709
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher John Wiley and Sons Inc.
record_format MEDLINE/PubMed
spelling pubmed-67717092019-10-07 From Crystalline to Amorphous Germania Bilayer Films at the Atomic Scale: Preparation and Characterization Lewandowski, Adrián L. Tosoni, Sergio Gura, Leonard Schlexer, Philomena Marschalik, Patrik Schneider, Wolf‐Dieter Heyde, Markus Pacchioni, Gianfranco Freund, Hans‐Joachim Angew Chem Int Ed Engl Communications A new two‐dimensional (2D) germanium dioxide film has been prepared. The film consists of interconnected germania tetrahedral units forming a bilayer structure, weakly coupled to the supporting Pt(111) metal‐substrate. Density functional theory calculations predict a stable structure of 558‐membered rings for germania films, while for silica films 6‐membered rings are preferred. By varying the preparation conditions the degree of order in the germania films is tuned. Crystalline, intermediate ordered and purely amorphous film structures are resolved by analysing scanning tunnelling microscopy images. John Wiley and Sons Inc. 2019-07-01 2019-08-05 /pmc/articles/PMC6771709/ /pubmed/31050096 http://dx.doi.org/10.1002/anie.201903922 Text en © 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
spellingShingle Communications
Lewandowski, Adrián L.
Tosoni, Sergio
Gura, Leonard
Schlexer, Philomena
Marschalik, Patrik
Schneider, Wolf‐Dieter
Heyde, Markus
Pacchioni, Gianfranco
Freund, Hans‐Joachim
From Crystalline to Amorphous Germania Bilayer Films at the Atomic Scale: Preparation and Characterization
title From Crystalline to Amorphous Germania Bilayer Films at the Atomic Scale: Preparation and Characterization
title_full From Crystalline to Amorphous Germania Bilayer Films at the Atomic Scale: Preparation and Characterization
title_fullStr From Crystalline to Amorphous Germania Bilayer Films at the Atomic Scale: Preparation and Characterization
title_full_unstemmed From Crystalline to Amorphous Germania Bilayer Films at the Atomic Scale: Preparation and Characterization
title_short From Crystalline to Amorphous Germania Bilayer Films at the Atomic Scale: Preparation and Characterization
title_sort from crystalline to amorphous germania bilayer films at the atomic scale: preparation and characterization
topic Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6771709/
https://www.ncbi.nlm.nih.gov/pubmed/31050096
http://dx.doi.org/10.1002/anie.201903922
work_keys_str_mv AT lewandowskiadrianl fromcrystallinetoamorphousgermaniabilayerfilmsattheatomicscalepreparationandcharacterization
AT tosonisergio fromcrystallinetoamorphousgermaniabilayerfilmsattheatomicscalepreparationandcharacterization
AT guraleonard fromcrystallinetoamorphousgermaniabilayerfilmsattheatomicscalepreparationandcharacterization
AT schlexerphilomena fromcrystallinetoamorphousgermaniabilayerfilmsattheatomicscalepreparationandcharacterization
AT marschalikpatrik fromcrystallinetoamorphousgermaniabilayerfilmsattheatomicscalepreparationandcharacterization
AT schneiderwolfdieter fromcrystallinetoamorphousgermaniabilayerfilmsattheatomicscalepreparationandcharacterization
AT heydemarkus fromcrystallinetoamorphousgermaniabilayerfilmsattheatomicscalepreparationandcharacterization
AT pacchionigianfranco fromcrystallinetoamorphousgermaniabilayerfilmsattheatomicscalepreparationandcharacterization
AT freundhansjoachim fromcrystallinetoamorphousgermaniabilayerfilmsattheatomicscalepreparationandcharacterization

Ejemplares similares