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Influence of deep traps on charge transport in nanodielectrics
| Content Provider | Semantic Scholar |
|---|---|
| Author | Hao, Miao Wang, Yan Chen, George Chen, Xin Jun Zhang, Chong Li, Wenpeng Wang, H. Zhou, Mingyu Lei, Xianzhang |
| Copyright Year | 2017 |
| Abstract | Nanodielectrics have attracted significant attention due to their potential applications as the improved dielectrics in high voltage direct current (HVDC) power transmission. One of the improved properties widely reported is the suppression of space charge of nanodielectrics when subject to DC electric fields. The proposed mechanism for the reduction in space charge is the introduction of deep traps due to the interaction between nanoparticles and polymer matrix. The supporting experimental results that leads to the deep trap formation, however, are not rigorously examined. In this letter, a simple and more direct approach has been designed based on isothermal surface potential decay measurements. The observation of surface potential and its time evolution immediately after polarization of DC electric fields have been used to prove the existence of deep traps. By comparing the surface potential results from nanodielelctrics with different nanoparticles loading concentrations, 0, 1wt% and 5wt%, the concept of deep traps introduced by nanoparticles can easily explained the observed results and its impact on charge transport processes in nanodielectrics. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://eprints.soton.ac.uk/416341/1/Influence_of_deep_traps_on_charge_transport_in_nanodielectrics.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
