Advanced Materials
Advanced Materials
5 years ago

Polymorphic Architectures of Graphene Quantum Dots

Polymorphic Architectures of Graphene Quantum Dots
Michael J. Heller, Sejung Kim, Youngjun Song
A systematic strategy for designing structured nanomaterials is demonstrated through self-assembly of graphene quantum dots. The approach reveals that graphene derivatives at the nanoscale assemble into various architectures of nanocrystals in a binary solution system. The shapes of the nanocrystals continue to evolve in terms of the intimate association of organic molecules with the dispersion medium, obtaining a high index faceted superlattice. This facile synthetic process provides a versatile strategy for designing particles to new structured materials systems, exploiting the crystallization of layered graphitic carbon structures within single crystals. A versatile synthetic process for producing a highly faceted graphene quantum dots (GQDs)-based superlattice is established by precise control of the intimate association of GQDs with solvents as well as structural-guided optical properties. Pair potentials are examined using the Derjauin, Landau, Verwey, and Overbeek theory to disentangle the evolutionary polymorphism of layered graphitic carbons, from simple cubics to truncated structures.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/adma.201701845

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