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.

Lewandowski, A., Tosoni, S., Gura, L., Schlexer, P., Marschalik, P., Schneider, W., et al. (2019). From Crystalline to Amorphous Germania Bilayer Films at the Atomic Scale: Preparation and Characterization. ANGEWANDTE CHEMIE. INTERNATIONAL EDITION, 58(32), 10903-10908 [10.1002/anie.201903922].

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

Tosoni S.;Schlexer P.;Pacchioni G.;
2019

Abstract

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.
Articolo in rivista - Articolo scientifico
amorphous structures; crystalline materials; germania; scanning probe techniques; thin films;
amorphous structures; crystalline materials; germania; scanning probe techniques; thin films
English
2019
58
32
10903
10908
none
Lewandowski, A., Tosoni, S., Gura, L., Schlexer, P., Marschalik, P., Schneider, W., et al. (2019). From Crystalline to Amorphous Germania Bilayer Films at the Atomic Scale: Preparation and Characterization. ANGEWANDTE CHEMIE. INTERNATIONAL EDITION, 58(32), 10903-10908 [10.1002/anie.201903922].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/260096
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