PHOTOINDUCED CURRENTS IN PRISTINE AND ION IRRADIATED KAPTON-H POLYIMIDE

摘要

The photoinduced currents in pristine and ion irradiated kapton-H polyimide have been investigated for different applied electric fields at 200~0C. Particularly the effect of illumination intensity on the maximum current obtained as a result of photoinduced polarization has been studied.Samples were irradiated by using PELLETRON facility, IUAC, New Delhi. The photocarrier charge generation depends directly on intensity of illumination. The samples irradiated at higher fluence show a decrease in the peak current with intensity of illumination.The secondary radiation induced crystallinity (SRIC) is responsible for the increase in maximum photoinduced currents generated with intensity of illumination.