Nanographene

Project Graphic Express Summary This research focuses on the use of hybrid nanographene–graphene (NG–Gr) van der Waals heterostructures (vdWHs) as materials for optoelectronic devices. We found that adjusting the size of synthesized NGs can control the strength of van der Waals interactions in NG–Gr vdWHs, which enables control over interfacial charge transfer. The interfacial charge transfer efficiency and rate in NG-Gr vdWHs increased when the size of NGs were increased from 42 to 96 sp2 carbon atoms, despite the reduction in the interfacial energy driving the charge transfer process.