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Voltage reversal will strongly affect the stability of cable in service, especially under temperature gradient due to the temperature rise of the cable. In this paper, the results of space charge profiles and field distortions in low density polyethylene (LDPE) films after dc pre-stress of 50 kV/mm for 2 h under temperature gradient and then during different voltage reverse polarities or during different...
CdSxSe1-x quantum dots (QDs) were prepared on silicon substrate by a simple physical method. The temperature dependent photoluminescence (PL) properties of the CdSxSe1-x QDs have been investigated in a temperature range of 10-300 K. The PL intensity reveals an unusual increasing behaviour with increasing temperature in the range of 180 - 260 K. And the energy gap shows a redshift of 62.23 meV when...
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