IR ns pulsed laser irradiation of Polydimethylsiloxane in vacuum

0525257 - ÚJF 2021 RIV GB eng J - Journal Article
Torrisi, L. - Cutroneo, Mariapompea - Torrisi, Alfio - Di Marco, G. - Fazio, B. - Silipigni, L.
IR ns pulsed laser irradiation of Polydimethylsiloxane in vacuum.
Vacuum. Roč. 177, č. 7 (2020), č. článku 109361. ISSN 0042-207X. E-ISSN 1879-2715
R&D Projects: GA ČR GA19-02482S; GA MŠMT EF16_013/0001812; GA MŠMT LM2015056
Institutional support: RVO:61389005
Keywords : Polydimethylsiloxane * PDMS * laser ablation * laser-generated plasma * TOF
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 3.627, year: 2020
Method of publishing: Limited access
https://doi.org/10.1016/j.vacuum.2020.109361

Polydimethylsiloxane (PDMS) has been irradiated by a ns pulsed IR laser in vacuum and the radiation effects induced by the coherent radiation, above a threshold fluence, produce a non-equilibrium plasma and material ablation. The laser absorption can be enhanced using gold nanoparticles (AuNPs) embedded in the polymer. The laser-generated plasma has been characterized, whereas the ion emission from both the virgin PDMS and the PDMS + AuNPs sheets has been analysed both in mass and energy. Morphological investigations, optical spectroscopy and compositional analyses have been performed. The adopted laser treatment can be employed to modify the properties of PDMS with and without AuNPs inducing a local enrichment of microcrystalline silicon in both cases.
Permanent Link: http://hdl.handle.net/11104/0309440