Chemical aspects of implantation of high-energy ions into polymeric materials

Abstract

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Magnetoresistive Effect in PET Films with Iron Nanoparticles Synthesized by Ion Implantation

“…% [18], which is not enough for the physical percolation of metal inclusions. In this case the contribution into conductance from the radiation-induced carbonised phase of polymer must be considered [3][4][5][6][7]. in Fig.…”

“…In particular, electrical conductance of the implanted layer can increase up to values typical for semiconductors and even metals. This change in electrical properties is related to radiation-induced carbonization and formation of conjugated bonds [3][4][5][6][7]. In the presence of high metal concentration, which can reach some tens of at % in the implanted layer, there will be additional conductance mechanism due to the formation of metal inclusions.…”

“…Depending on the metal species, such composite materials can be of interest for optical and magnetic applications [1,2]. However, one should consider the radiation damage effects that lead to modification of initial structure and properties of polymers [3,4]. In particular, electrical conductance of the implanted layer can increase up to values typical for semiconductors and even metals.…”

Effect of nitrogen plasma immersion ion implantation on surface electrical breakdown strength of the aluminized polyimide

“…If the implantation energies are different when the dielectric is treated with and without the metallic grid, we can expect that the structural and chemical modifications in the polymer surface will also vary between these two types of PIII treatment. Sviridov (18) has reported that the conductivity of the implanted layer in polymers treated by ion implantation is determined by the energy of the implanted ions. So, it seems that the modification in the surface of the Kapton promoted by the PIII treatment without the metallic grid was advantageous to increase the SBS due to the implantation of less energetic ions.…”

“…So, it seems that the modification in the surface of the Kapton promoted by the PIII treatment without the metallic grid was advantageous to increase the SBS due to the implantation of less energetic ions. And the energy of the implanted ions can be correlated to the conductivity of the polymer as well to the structural and chemical modifications promoted in the surface of the polymer, which are related to the composition of the modified layer and its availability of conductive charges (18) . In this work, atomic force microscopy (AFM) was used to evaluate the influence of the PIII treatments with and without the metallic grid on the surface morphology of the Kapton, complementing the above explanation of the discharge breakdown, as explained below.…”