• 文献标题:   Lithography-based fabrication of nanopore arrays in freestanding SiN and graphene membranes
  • 文献类型:   Article
  • 作  者:   VERSCHUEREN DV, YANG W, DEKKER C
  • 作者关键词:   nanopore array, reactive ion etching, graphene nanopore, electron beam lithography, 2d material
  • 出版物名称:   NANOTECHNOLOGY
  • ISSN:   0957-4484 EI 1361-6528
  • 通讯作者地址:   Delft Univ Technol
  • 被引频次:   14
  • DOI:   10.1088/1361-6528/aaabce
  • 出版年:   2018

▎ 摘  要

We report a simple and scalable technique for the fabrication of nanopore arrays on freestanding SiN and graphene membranes based on electron-beam lithography and reactive ion etching. By controlling the dose of the single-shot electron-beam exposure, circular nanopores of any size down to 16 nm in diameter can be fabricated in both materials at high accuracy and precision. We demonstrate the sensing capabilities of these nanopores by translocating dsDNA through pores fabricated using this method, and find signal-to-noise characteristics on par with transmission-electron-microscope-drilled nanopores. This versatile lithography-based approach allows for the high-throughput manufacturing of nanopores and can in principle be used on any substrate, in particular membranes made out of transferable two-dimensional materials.