Overview of Polyethylene Terephthalate Foils Patterned Using 10 MeV Carbon Ions for Realization of Micromembranes

0570595 - ÚJF 2024 RIV CH eng J - Journal Article
Cutroneo, Mariapompea - Havránek, Vladimír - Macková, Anna - Malinský, Petr - Mikšová, Romana - Ceccio, Giovanni - Ando, L. - Michalcová, A.
Overview of Polyethylene Terephthalate Foils Patterned Using 10 MeV Carbon Ions for Realization of Micromembranes.
Micromachines. Roč. 14, č. 2 (2023), č. článku 284. E-ISSN 2072-666X
R&D Projects: GA ČR(CZ) GA22-10536S; GA MŠMT EF16_013/0001812
Institutional support: RVO:61389005
Keywords : ion lithography * membrane * polyethylene teraphthalate * simulation * STIM
OECD category: Nuclear physics
Impact factor: 3.4, year: 2022
Method of publishing: Open access
https://doi.org/10.3390/mi14020284

Polymer membranes are conventionally prepared using high-energy particles from radioactive decay or by the bombardment of hundreds of MeVs energy ions. In both circumstances, tracks of damage are produced by particles/ions passing through the polymer, and successively, the damaged material is removed by chemical etching to create narrow pores. This process ensures nanosized pore diameter but with random placement, leading to non-uniform local pore density and low membrane porosity, which is necessary to reduce the risk of their overlapping. The present study is focused on the use of polyethylene terephthalate (PET) foils irradiated by 10.0 MeV carbon ions, easily achievable with ordinary ion accelerators. The ion irradiation conditions and the chemical etching conditions were monitored to obtain customized pore locations without pore overlapping in PET. The quality, shape, and size of the pores generated in the micromembranes can have a large impact on their applicability. In this view, the Scanning Transmission Ion Microscopy coupled with a computer code created in our laboratory was implemented to acquire new visual and quantitative insights on fabricated membranes.
Permanent Link: https://hdl.handle.net/11104/0341896