Polymorphic Architectures of Graphene Quantum Dots

Sejung Kim; Youngjun Song; Michael J Heller

doi:10.1002/adma.201701845

Polymorphic Architectures of Graphene Quantum Dots

Adv Mater. 2017 Aug;29(31). doi: 10.1002/adma.201701845. Epub 2017 Jun 14.

Authors

Sejung Kim¹, Youngjun Song², Michael J Heller^{1

3}

Affiliations

¹ Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA.
² Department of Electrical and Computer Engineering, University of California San Diego, La Jolla, CA, 92093, USA.
³ Department of Bioengineering, University of California San Diego, La Jolla, CA, 92093, USA.

PMID: 28612514
DOI: 10.1002/adma.201701845

Abstract

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.

Keywords: crystallization; graphene quantum dots; layer-by-layer structures; polyhedrons; van der Waals forces.