Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 58, Issue 32, Pages 10903-10908Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201903922
Keywords
amorphous structures; crystalline materials; germania; scanning probe techniques; thin films
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Funding
- European Research Council (ERC) under the European Union's Horizon 2020 Research and Innovation Program [669179]
- European Research Council (ERC) [669179] Funding Source: European Research Council (ERC)
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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.
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