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

Lewandowski, Adrian; Tosoni, Sergio; Gura, Leonard; Schlexer, Philomena; Marschalik, Patrik; Schneider, Wolf-Dieter; Heyde, Markus; Pacchioni, Gianfranco; Freund, Hans-Joachim

doi:10.1002/anie.201903922

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

MPS-Authors

/persons/resource/persons146331

Lewandowski, Adrian
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons213389

Gura, Leonard
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons203263

Marschalik, Patrik
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons84699

Schneider, Wolf-Dieter
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21628

Heyde, Markus
Chemical Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21524

Freund, Hans-Joachim
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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Lewandowski_et_al-2019-Angewandte_Chemie_International_Edition.pdf
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引用

Lewandowski, A., Tosoni, S., Gura, L., Schlexer, P., Marschalik, P., Schneider, W.-D., Heyde, M., Pacchioni, G., & Freund, H.-J. (2019). From Crystalline to Amorphous Germania Bilayer Films at the Atomic Scale: Preparation and Characterization. Angewandte Chemie International Edition, 58(32), 10903-10908. doi:10.1002/anie.201903922.

引用: https://hdl.handle.net/21.11116/0000-0004-41DA-D

要旨

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.