Science Daily May 18, 2022
While it is possible to overcome limitations of graphene by doping or functionalizing there is also much interest in the search for new types of 2D carbon allotropes. Recently researchers found a top-down way to produce graphene oxides by creating many holes in its structure. An international team of researchers (South Korea, USA – University of Puerto Rico) has developed a bottom-up approach for creating “holey-graphyne” (HGY) constructing the topologically 2D carbon material atom by atom. It consists of alternately HYG linked between benzene rings and C≡C bonds, composed of a pattern of six-vertex and highly strained eight-vertex rings and an equal percentage of sp2 and sp hybridized carbon atoms. The new HGY displayed a direct bandgap of about 1.1 eV and excellent calculated-carrier mobility, making it suitable as a semiconductor material. Their work may pave the wave for a new generation of electronics beyond the silicon age…read more. TECHNICAL ARTICLEÂ
Graphical abstract. Credit: Matter, 18 May 2022