The on-surface self-assembly of inorganic atomic clusters and organic molecules offers significant opportunities to design novel hybrid materials with tailored functionalities. By adopting the advantages from both inorganic and organic components, the hybrid self-assembly molecules have shown great potential in future optoelectrical devices. Herein, we report the co-deposition of 4,8-diethynylbenzo[1,2-d-4,5-d0]bisoxazole (DEBBA) and Se atoms to produce a motif-adjustable organic-inorganic hybrid self-assembly system via the non-covalent interactions. By controlling the coverage of Se atoms, various chiral molecular networks containing Se, Se6, Se8, and terminal alkynes evolved on the Ag(111) surface. In particular, with the highest coverage of Se atoms, phase segregation into alternating one-dimensional chains of non-covalently bonded Se8 clusters and organic ligands has been noticed. The atom-coverage dependent evolution of self-assembly structures reflects the remarkable structural adaptability of Se clusters as building blocks based on the spontaneous resize to reach the maximum non-covalent interactions. This work has significantly extended the possibilities of flexible control in self-assembly nanostructures to enable more potential functions for broad applications. [Figure not available: see fulltext.]
|Number of pages||5|
|State||Published - Mar 2022|
Bibliographical noteFunding Information:
This work was supported by the Guangdong Basic and Applied Basic Research Foundation (Nos. 2019A1515110819 and 2020A1515010767), NRF-CRP grant “Two Dimensional Covalent Organic Framework: Synthesis and Applications” (No. NRF-CRP 16-2015-02, funded by National Research Foundation, Prime Minister’s Office, Singapore), the Shenzhen Peacock Plan (No. KQTD2016053112042971), and the National Natural Science Foundation of China (Nos. 21802067 and 21771156).
© 2021, Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature.
- Se cluster
- inorganic-organic hybrid
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Materials Science (all)
- Condensed Matter Physics
- Electrical and Electronic Engineering