4.4 Article

Investigation of electron-induced cross-linking of self-assembled monolayers by scanning tunneling microscopy

期刊

BEILSTEIN JOURNAL OF NANOTECHNOLOGY
卷 13, 期 -, 页码 462-471

出版社

BEILSTEIN-INSTITUT
DOI: 10.3762/bjnano.13.39

关键词

carbon nanomembranes; electron-induced cross-linking; scanning tunneling microscopy; self-assembled monolayers; subnanometerpores

资金

  1. German Federal Ministry of Education and Research (BMBF) [03X0158A, 03XP0155A]
  2. COST action CELINA [CM1301]
  3. German Research Foundation (DFG) [AN 370/8-1]
  4. European Union's Horizon 2020 research and innovation program under the Marie Sklodowska-Curie Grant [838593]
  5. Marie Curie Actions (MSCA) [838593] Funding Source: Marie Curie Actions (MSCA)

向作者/读者索取更多资源

Ultrathin membranes with subnanometer pores for molecular size-selective separation were created through electron-induced cross-linking of self-assembled monolayers (SAMs) on surfaces.
Ultrathin membranes with subnanometer pores enabling molecular size-selective separation were generated on surfaces via electron-induced cross-linking of self-assembled monolayers (SAMs). The evolution of p-terphenylthiol (TPT) SAMs on Au(111) surfaces into cross-linked monolayers was observed with a scanning tunneling microscope. As the irradiation dose was increased, the cross- linked regions continued to grow and a large number of subnanometer voids appeared. Their equivalent diameter is 0.5 +/- 0.2 nm and the areal density is approximate to 1.7 x 10(17) m(-2). Supported by classical molecular dynamics simulations, we propose that these voids may correspond to free volumes inside a cross-linked monolayer.

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