High-Quality Three-Dimensional Nanoporous Graphene


  • We would like to thank Professors Toshiaki Enoki and Yoji Koike for valuable discussions, and Dr. Atsushi Unemoto for CVD safety advice. This work was sponsored by JST-CREST “Phase Interface Science for Highly Efficient Energy Utilization”; the fusion research funds of “World Premier International (WPI) Research Center Initiative for Atoms, Molecules and Materials”, MEXT (Japan), a Grant-in-Aid for Scientific Research on Innovative Areas “Science of Atomic Layers” (25107003), and KAKENHI (24740216, 24656028, 23224010). H.-J.Q. is supported by the Japan Society for the Promotion of Science (JSPS) postdoctoral fellowship program (P12054).


We report three-dimensional (3D) nanoporous graphene with preserved 2D electronic properties, tunable pore sizes, and high electron mobility for electronic applications. The complex 3D network comprised of interconnected graphene retains a 2D coherent electron system of massless Dirac fermions. The transport properties of the nanoporous graphene show a semiconducting behavior and strong pore-size dependence, together with unique angular independence. The free-standing, large-scale nanoporous graphene with 2D electronic properties and high electron mobility holds great promise for practical applications in 3D electronic devices.