Surface-potential decay due to surface conduction
| Autor: | A. Crisci, V. Ollier-Dureault, J.-P. Gosse, B. Gosse |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Surface (mathematics)
Condensed matter physics Chemistry Analytical chemistry Time constant Epoxy Condensed Matter Physics Specific surface energy Electronic Optical and Magnetic Materials Atmosphere Surface conductivity Volume (thermodynamics) visual_art visual_art.visual_art_medium Constant (mathematics) Instrumentation |
| Zdroj: | The European Physical Journal Applied Physics. 4:107-116 |
| ISSN: | 1286-0050 1286-0042 |
| DOI: | 10.1051/epjap:1998249 |
| Popis: | The time dependence of the surface potential of an insulating material is theoretically investigated in the case of simultaneous surface and volume ohmic conduction. When the material presents a constant surface conductivity, the first part of the decrease with time of the surface potential is strongly influenced by the initial distribution of charges and cannot be used to determine the surface conductivity. On the other hand, at rather long times after the surface has been charged, the potential of the surface follows an exponential variation with time, the expression of the corresponding time constant is given in different cases. This model is found in good agreement with experiments performed with photo-oxidized epoxy resins placed in a humid atmosphere. |
| Databáze: | OpenAIRE |
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