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Photoconductivity of high voltage space insulating materials: measurements with metal electrodes
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Nanevicz, J. E. Coffey, H. T. |
| Copyright Year | 1975 |
| Description | The electrical conductivities of high voltage insulating materials were measured in the dark and under various intensities of illumination. The materials investigated included FEP Teflon, Kapton-H, fused quartz, and parylene. Conductivities were determined as functions of temperature between 22 and 100 C and light intensity between 0 and 2.5 kW/m2. The thickness dependence of the conductivity was determined for Teflon and Kapton, and the influence of spectral wavelengths on the conductivity was determined in several cases. All measurements were made in a vacuum to simulate a space environment, and all samples had metallic electrodes. The conductivity of Kapton was permanently increased by exposure to light; changes as great as five orders of magnitude were observed after six hours of illumination. |
| File Size | 2318888 |
| Page Count | 31 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770016421 |
| Archival Resource Key | ark:/13960/t4qk26d97 |
| Language | English |
| Publisher Date | 1975-04-01 |
| Access Restriction | Open |
| Subject Keyword | Electronics And Electrical Engineering Kapton Trademark Temperature Solar Arrays Light Visible Radiation Electrical Resistivity Electrical Insulation Photoconductivity Teflon Trademark Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
