• 文献标题:   Tuning doping and strain in graphene by microwave-induced annealing
  • 文献类型:   Article
  • 作  者:   KIM Y, CHO DH, RYU S, LEE C
  • 作者关键词:  
  • 出版物名称:   CARBON
  • ISSN:   0008-6223 EI 1873-3891
  • 通讯作者地址:   Sungkyunkwan Univ
  • 被引频次:   7
  • DOI:   10.1016/j.carbon.2013.10.056
  • 出版年:   2014

▎ 摘  要

We propose microwave-induced annealing as a rapid, simple, and effective method of controlling surface doping and strain in graphene. Raman spectroscopy was used to confirm that heavy and uniform p-type (1.2 x 10(13) cm(-2)) doping can be achieved within only 5 min without unintended defects by placing graphene onto a substrate with a sufficiently high dielectric constant and exposing graphene and its substrate to microwave irradiation. Further, we showed that ripples are formed in suspended graphene when it is exposed to microwave irradiation. Silicon has a sufficiently high dielectric constant (11.9) and graphene is commonly deposited on silicon-based substrates, so our. proposed microwave-induced annealing technique can be used for the rapid manipulation of the properties of graphene at low cost. (C) 2013 Elsevier Ltd. All rights reserved.