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Article: Liquid-solid surface phase transformation of fluorinated fullerene on monolayer tungsten diselenide

TitleLiquid-solid surface phase transformation of fluorinated fullerene on monolayer tungsten diselenide
Authors
Issue Date2018
Citation
Physical Review B, 2018, v. 97, n. 13, article no. 134102 How to Cite?
AbstractHybrid van der Waals heterostructures constructed by the integration of organic molecules and two-dimensional (2D) transition metal dichalcogenide (TMD) materials have useful tunable properties for flexible electronic devices. Due to the chemically inert and atomically smooth nature of the TMD surface, well-defined crystalline organic films form atomically sharp interfaces facilitating optimal device performance. Here, the surface phase transformation of the supramolecular packing structure of fluorinated fullerene (C60F48) on single-layer tungsten diselenide (WSe2) is revealed by low-temperature scanning tunneling microscopy, from thermally stable liquid to solid phases as the coverage increases. Statistical analysis of the intermolecular interaction potential reveals that the repulsive dipole-dipole interaction induced by interfacial charge transfer and substrate-mediated interactions play important roles in stabilizing the liquid C60F48 phases. Theoretical calculations further suggest that the dipole moment per C60F48 molecule varies with the surface molecule density, and the liquid-solid transformation could be understood from the perspective of the thermodynamic free energy for open systems. This study offers insights into the growth behavior at 2D organic/TMD hybrid heterointerfaces.
Persistent Identifierhttp://hdl.handle.net/10722/298257
ISSN
2020 Impact Factor: 4.036
2020 SCImago Journal Rankings: 1.780

 

DC FieldValueLanguage
dc.contributor.authorSong, Zhibo-
dc.contributor.authorWang, Qixing-
dc.contributor.authorLi, Ming Yang-
dc.contributor.authorLi, Lain Jong-
dc.contributor.authorZheng, Yu Jie-
dc.contributor.authorWang, Zhuo-
dc.contributor.authorLin, Tingting-
dc.contributor.authorChi, Dongzhi-
dc.contributor.authorDing, Zijing-
dc.contributor.authorHuang, Yu Li-
dc.contributor.authorThye Shen Wee, Andrew-
dc.date.accessioned2021-04-08T03:08:01Z-
dc.date.available2021-04-08T03:08:01Z-
dc.date.issued2018-
dc.identifier.citationPhysical Review B, 2018, v. 97, n. 13, article no. 134102-
dc.identifier.issn2469-9950-
dc.identifier.urihttp://hdl.handle.net/10722/298257-
dc.description.abstractHybrid van der Waals heterostructures constructed by the integration of organic molecules and two-dimensional (2D) transition metal dichalcogenide (TMD) materials have useful tunable properties for flexible electronic devices. Due to the chemically inert and atomically smooth nature of the TMD surface, well-defined crystalline organic films form atomically sharp interfaces facilitating optimal device performance. Here, the surface phase transformation of the supramolecular packing structure of fluorinated fullerene (C60F48) on single-layer tungsten diselenide (WSe2) is revealed by low-temperature scanning tunneling microscopy, from thermally stable liquid to solid phases as the coverage increases. Statistical analysis of the intermolecular interaction potential reveals that the repulsive dipole-dipole interaction induced by interfacial charge transfer and substrate-mediated interactions play important roles in stabilizing the liquid C60F48 phases. Theoretical calculations further suggest that the dipole moment per C60F48 molecule varies with the surface molecule density, and the liquid-solid transformation could be understood from the perspective of the thermodynamic free energy for open systems. This study offers insights into the growth behavior at 2D organic/TMD hybrid heterointerfaces.-
dc.languageeng-
dc.relation.ispartofPhysical Review B-
dc.titleLiquid-solid surface phase transformation of fluorinated fullerene on monolayer tungsten diselenide-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevB.97.134102-
dc.identifier.scopuseid_2-s2.0-85045212867-
dc.identifier.volume97-
dc.identifier.issue13-
dc.identifier.spagearticle no. 134102-
dc.identifier.epagearticle no. 134102-
dc.identifier.eissn2469-9969-
dc.identifier.issnl2469-9950-

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