Comparison of pulsed electroacoustic and thermally stimulated depolarization current measurements of thermally poled PET electrets
We have compared measurements of a set of polyethylene terephthalate (PET) electret samples by means of pulsed electroacoustic method (PEA) and thermally stimulated depolarization current (TSDC) techniques. Samples where the or the relaxation is activated show uniform polarization and image charge a...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/376101 |
| Acceso en línea: | https://hdl.handle.net/2117/376101 https://dx.doi.org/10.1016/j.elstat.2022.103750 |
| Access Level: | acceso abierto |
| Palabra clave: | Electrets Polarization (Light) Pulsed electroacoustic technique Thermally stimulated depolarization currents Charge profile Relaxation External charge Polarització (Llum) Àrees temàtiques de la UPC::Física::Electromagnetisme |
| Sumario: | We have compared measurements of a set of polyethylene terephthalate (PET) electret samples by means of pulsed electroacoustic method (PEA) and thermally stimulated depolarization current (TSDC) techniques. Samples where the or the relaxation is activated show uniform polarization and image charge at the electrodes. Different electrode configurations have been tested when external charge carriers are injected into the sample. In these experiments, differences in TSDC spectra are explained by the different blocking behavior of the electrodes. All in all, PEA in combination with TSDC turns out to be a useful technique in the study of thermally poled electrets. |
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