Perforating Freestanding Molybdenum Disulfide Monolayers with Highly Charged Ions

Roland Kozubek, Mukesh Tripathi, Mahdi Ghorbani-Asl, Silvan Kretschmer, Lukas Madauß, Erik Pollmann, Maria O'Brien, Niall McEvoy, Ursula Ludacka, Toma Susi, Georg S. Duesberg, Richard A. Wilhelm, Arkady V. Krasheninnikov, Jani Kotakoski*, Marika Schleberger

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

8 Sitaatiot (Scopus)

Abstrakti

Porous single-layer molybdenum disulfide (MoS 2 ) is a promising material for applications such as DNA sequencing and water desalination. In this work, we introduce irradiation with highly charged ions (HCIs) as a new technique to fabricate well-defined pores in MoS 2 . Surprisingly, we find a linear increase of the pore creation efficiency over a broad range of potential energies. Comparison to atomistic simulations reveals the critical role of energy deposition from the ion to the material through electronic excitation in the defect creation process and suggests an enrichment in molybdenum in the vicinity of the pore edges at least for ions with low potential energies. Analysis of the irradiated samples with atomic resolution scanning transmission electron microscopy reveals a clear dependence of the pore size on the potential energy of the projectiles, establishing irradiation with highly charged ions as an effective method to create pores with narrow size distributions and radii between ca. 0.3 and 3 nm.

AlkuperäiskieliEnglanti
Sivut904-910
Sivumäärä7
JulkaisuJournal of Physical Chemistry Letters
DOI - pysyväislinkit
TilaJulkaistu - 1 tammikuuta 2019
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

Sormenjälki Sukella tutkimusaiheisiin 'Perforating Freestanding Molybdenum Disulfide Monolayers with Highly Charged Ions'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

  • Siteeraa tätä

    Kozubek, R., Tripathi, M., Ghorbani-Asl, M., Kretschmer, S., Madauß, L., Pollmann, E., ... Schleberger, M. (2019). Perforating Freestanding Molybdenum Disulfide Monolayers with Highly Charged Ions. Journal of Physical Chemistry Letters, 904-910. https://doi.org/10.1021/acs.jpclett.8b03666