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van der Waals Solids from Self-Assembled Nanoscale Building Blocks
Cited 50 time in
Web of Science
Cited 55 time in Scopus
- Authors
- Issue Date
- 2016-02
- Publisher
- American Chemical Society
- Citation
- Nano Letters, Vol.16 No.2, pp.1445-1449
- Abstract
- Traditional atomic van der Waals materials such as graphene, hexagonal boron-nitride, and transition metal dichalcogenides have received widespread attention due to the wealth of unusual physical and chemical behaviors that arise when charges, spins, and vibrations are confined to a plane. Though not as widespread as their atomic counterparts, molecule-based two-dimensional (2D) layered solids offer significant benefits; their structural flexibility will enable the development Of materials with tunable properties. Here we describe a layered van der Waals solid self-assembled from a structure-directing building block and C-60 fullerene. The resulting crystalline solid contains a corrugated monolayer of neutral fullerenes and can be mechanically exfoliated. The absorption spectrum of the bulk solid shows an optical gap of 390 +/- 40 meV that is consistent with thermal activation energy obtained from electrical transport measurement. We find that the dimensional confinement of fullerenes significantly modulates the optical and electronic properties compared to the bulk solid.
- ISSN
- 1530-6984
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Related Researcher
- College of Engineering
- Department of Electrical and Computer Engineering
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