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Thermally stimulated current (TSC) spectra were observed in open-circuit condition for corona-charged polypropylene films from room temperature to about 160°C. In these TSC spectra, two kinds of reversal currents I1 and I2 were found: I1 appeared at room temperature and rapidly decreased with increasing temperature, whereas I2 increased with temperature to form a TSC band. These anomalous currents...
We have been focusing on fabricating a photodetector that consists of a diamond cold cathode and an amorphous selenium (a-Se) photoconductor, which is one of the practical applications of a cold cathode. We have previously succeeded in achieving a proto-type photodetector of which a heavily nitrogen (N)-doped diamond was used as the cold cathode, and the results indeed showed a low operation voltage...
In this note, we report anomalous currents the type of which is different to that of Giacometti et al. or Coelho et al. for corona-charged film samples of polypropylene (PP) with higher molecular weight in comparison with the usual film-use PP.
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