Rezumat
CZU 537.226:678
DOI https://doi.org/10.52577/eom.2026.62.3.18
This study presents a comparative analysis of electret and photoelectret modes in the electronic processing of polymer materials. Those modes are considered to be different mechanisms of the space charge formation and internal electric field generation, which determine charge carrier transport conditions and the electrical properties of materials. For quantitative comparison, a model of an electric field redistribution is proposed with an introduction of a field balance parameter characterizing the ratio between internal and external electric fields. It is shown that in the electret mode, a quasi-static internal field is formed, leading to partial compensation of the external field and a moderate decrease in electrical conductivity. In the photoelectret mode, optical stimulation enhances space charge and the internal electric field, resulting in a significant suppression of the effective transport field and the manifestation of photoconductivity quenching. It is demonstrated that the photoelectret mode is a more efficient and controllable tool for the electronic processing of polymer materials.
Keywords: electronic processing of materials, polymer materials, electret mode, photoelectret mode, space charge, electrical conductivit.