Investigation of Rod-Shaped Single-Graphene Quantum Dot

In recent years, there has been a resurgence of interest in graphene quantum dots (i.e., large polycyclic aromatic hydrocarbons) in particular due to their interesting properties as single-quantum emitters. Herein, a thorough study of a graphene quantum dot made of 96 carbon atoms in a D2h symmetry is reported. In particular, experiments at the single-molecule level reveal that this graphene quantum dot structure is a bright and photostable single-photon emitter at room temperature. Finally, a statistical study of the emission wavelength as a function of the graphene quantum dot concentration highlights the high purity and degree of control on the samples. In recent years, there has been resurgence of interest in graphene quantum dots, particularly due to their interesting properties as single-quantum emitters. Here, a thorough study of a newly reported graphene quantum dot at the single-molecule level is reported and the exceptional purity and individualization of the synthesized molecule are highlighted.image (c) 2023 WILEY-VCH GmbH