Graphene is prepared with a variety of methods, such as thermal decomposition of SiC, Chemical Vapor Deposition and pulsed laser deposition. We propose another method to prepare graphitic carbon by irradiating lead pencil drawn paper using femtosecond laser [Jpn. J. Appl. Phys. 55 (2016) 01AE24]. In order to evaluate electronic properties, such as resistivity and mobility, surface roughness of paper is important to evaluate thickness of lead pencil as one of principal factors. The surface roughness of variety of paper was investigated including cross section of drawing paper. Femotosecond laser irradiated the sample surface with its focus shifted from the optical focal point to enlarge the laser spot and tender irradiation.
@article{arxiv.1604.01540,
title = {Choice of Paper for Multigraphene Growth on Lead Pencil Drawing},
author = {Satoru Kaneko and Yu Motoizumi and Kazuo Satoh and Yoshitada Shimizu and Manabu Yasui and Takeshi Rachi and Chihiro Kato and Satomi Tanaka and Mikio Ushiyama and Seiji Konuma and Yuko Itou and Tamio Endo and Akifumi Matsuda and Mamoru Yoshimoto},
journal= {arXiv preprint arXiv:1604.01540},
year = {2016}
}