title: Environmentally friendly approaches toward the production of processable graphene by exfoliation of graphite using ionic liquid.
abstract: A facile, low-cost and environmentally friendly method was developed to prepare processable graphene materials by direct exfoliation of expandable graphite flakes under wet ball milling conditions in ionic liquids. The graphene nano-sheets obtained in this method were characterized by AFM, Raman spectroscopy, UV-NIR. Thin-film field-effect transistors made from this graphene sheets exhibit ambipolar effect, an average hole mobility of -0.29 cm2 V(-1) s(-1), electron mobility of -0.57 cm2 V(-1) s(-1) was obtained.
authors: Key Laboratory of Functional Polymer Materials, Center for Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China.
authors: Yanfei
authors: Y
authors: Xu
authors: Yi
authors: Y
authors: Huang
authors: Weibo
authors: W
authors: Yan
authors: Long
authors: L
authors: Zhang
authors: Yongsheng
authors: Y
authors: Chen