Communication

Size-Dependent Evolution of Graphene Nanopores Under Thermal Excitation

  1. Tao Xu1,
  2. Kuibo Yin1,
  3. Xiao Xie1,
  4. Longbing He1,
  5. Binjie Wang1,2,
  6. Litao Sun1,*

Article first published online: 20 AUG 2012

DOI: 10.1002/smll.201200979

Issue

Small

Small

Volume 8, Issue 22, pages 3422–3426, November 19, 2012

Additional Information

How to Cite

Xu, T., Yin, K., Xie, X., He, L., Wang, B. and Sun, L. (2012), Size-Dependent Evolution of Graphene Nanopores Under Thermal Excitation. Small, 8: 3422–3426. doi: 10.1002/smll.201200979

Author Information

  1. 1

    SEU-FEI Nano-Pico Center, Key Lab of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, PR China

  2. 2

    FEI Company, Shanghai Nanoport, No. 690 Bibo Road, Shanghai, 201203, PR China

*SEU-FEI Nano-Pico Center, Key Lab of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, PR China.

Publication History

  1. Issue published online: 14 NOV 2012
  2. Article first published online: 20 AUG 2012
  3. Manuscript Revised: 20 JUL 2012
  4. Manuscript Received: 6 MAY 2012

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Keywords:

  • graphene;
  • nanomanipulation;
  • size-dependent evolution;
  • nanopores
Thumbnail image of graphical abstract

Graphene nanopores expand when pore diameter is larger than membrane thickness after heat treatment; otherwise, nanopore size shrinks. Such size-dependent evolutionary mechanism of nanopores is considered as thermal-induced migration of uncombined carbon atoms. The amount of carbon adatoms determines the extent of diameter change. This could provide an applicable strategy for nanopore fabrication.

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