Skip to main content Accessibility help

Interfaces and Space Charge in Polymeric Insulating Materials

  • George Chen (a1)


In this paper, the influence of interface between electrode and polymer or polymer and polymer on space charge dynamics has been studied. Planar samples of low density polyethylene (LDPE) were subjected to high dc electric stresses for extended periods of time and space charge measurements were taken using the pulsed electroacoustic (PEA) technique. Common electrode materials used in either laboratory or power cable industry were selected (i.e. aluminium (Al), gold (Au) and carbon loaded XLPE (Sc)). Experimental results demonstrated that charge injection processes take place in all cases once the applied electric stress has exceeded a threshold value. However, the amount of charge and polarity of the dominant injected charges showed significant dependence on the electrode materials (under the same applied electric stress). Having establishing the influence of electrode materials on charge accumulation, our attention was then focused on the effect of polymer/polymer interface on charge dynamics. Unlike our previous approach where two different polymeric materials were used, this time the polymer/polymer interface was formed by using two layer of LDPE films cut from the same sheet. Sc and Al were used as electrodes to form different combinations. The results clearly indicated that the interface between two layers of LDPE acts as traps for electrons but not for positive charge carriers. The charge distribution in the bulk of the sample strongly depends on the electrode materials.



Hide All
1 Li, Y., Takada, T., Miyata, H. and Niwa, T., J. Appl. Phys. 74 27252730 (1993).
2 Tanaka, T., Hayashi, S. and Shibayama, K., J. Appl. Phys. 48 34783483 (1977).
3 Tanaka, T., Hayashi, S., Hirabayashi, S. and K, Shibayama, J. Appl. Phys. 49 24902493 (1978).
4 Suzuoki, Y., Cai, G., Mizutani, T. and Ieda, M., Jpn. J. Appl. Phys. 21 17591761 (1982).
5 Mizutani, T., Ieda, M., Ochiai, S. and Ito, M., J. Electrostat. 12 427433 (1982).
6 Hozumi, N., Okamoto, T. and Imajo, T., Proc. 8th ISH, Yokohama, Japan 111114 (1993).
7 Montanari, G. C. and Fabiani, D., IEEE Trans. on DEI 7 322328 (2000).
8 Zhang, Y., Lewiner, J., Alquie, C. and Hampton, N., IEEE Trans. on DEI 4 778783 (1997).
9 Dissado, L. A., Mazzanti, G. and Montanari, G. C., IEEE Trans. on DEI 4 496506 (1997).
10 Chen, G., Brown, M. A., Davies, A. E., Rochester, C. and Doble, I., 9th Intel. Symp on Electret, Shanghai, China, 285290 (1996).
11 Fukunaga, K., Maeno, T., Hashimuto, Y. and Suzuki, K., IEEE Trans.on DEI 5 276280 (1998).
12 Maxwell, J. C., “A treatise on electricity and magnetism”, Clarendon, (1881).
13 Tanaka, T. and Uchiumi, M., CEIDP, Austin, UAS, 472475 (1999).
14 Boggs, S., Damon, D. H., Hjerrild, J., Holboll, J. T. and Henriksen, M., IEEE Trans Power delivery 16 456461 (2001).
15 Chen, G., Proc. 2nd Intl Conf. ICMEP, Chongqing, China, 133136 (2003)
16 Mazzanti, G., Montanari, G. C. and Dissado, L. A., IEEE Trans. on DEI 12 876890 (2005).
17 Chen, G., Fu, M., Liu, X. Z. and Zhong, L. S., J. Appl. Phys. 97 083713 (2005).


Interfaces and Space Charge in Polymeric Insulating Materials

  • George Chen (a1)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed