[23p-B202-1~13] 17.2 Graphene

[23p-B202-10] Electronic states and electrical transport properties of N-doped 3D graphene

〇Yoichi Tanabe¹, Yoshikazu Ito², Katsuaki Sugawara^3,4, Samuel Jeong², Naoaki Kawada¹, Shojiro Kimura⁵, Christopher Florencio Aleman⁶, Takashi Takahashi⁴, Mingwei Chen^4,6 (1.Okayama Univ. of Science, 2.University of Tsukuba, 3.Dept of Physics, Tohoku University, 4.AIMR, Tohoku University, 5.IMR, Tohoku University, 6.Johns Hopkins University)

Keywords:Graphene, 3D curved surface, Nitrogen doping

We report on the electronic states and electrical transport properties of the nitrogen-doped 3D graphene nanoarchitecture. From transport and photoelectron spectroscopy measurements, nitrogen doping on a 3D curved graphene surface induces the electron localization and the resulting Urbach-tail-like state near the neutral point, in addition to the metallic conduction channels of graphene. This dual electronic state could be the origin of the high catalytic properties and photothermal conversion properties of N-doped 3D graphene.