Investigation of charge trapping in thin Kapton® polyimide films by means of photo-stimulated discharge spectroscopy

Nika Kozhevnikova, Reimund Gerhard, Axel Mellinger

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Photo-stimulated discharge-current spectroscopy was performed on 50 μm Kapton® 200HN polyimide thermo- and photoelectrets formed in the temperature range between -40°C and +130°C. Films were either charged in the DC electric field of 20 MV/m or photo-charged by illumination with light at the wavelength of 420 nm under the electric field of the same strength. Photocurrent spectra scanned in the wavelength interval 600-350 nm demonstrate a pronounced peak at approximately 470 nm revealing the presence of one charge-trapping level. The long-wavelength cut-off of the peak is at 550 nm corresponding to 2.3 eV trap depth.

Original languageEnglish
Title of host publicationProceedings of the 2010 IEEE International Conference on Solid Dielectrics, ICSD 2010
DOIs
StatePublished - 2010
Event2010 IEEE International Conference on Solid Dielectrics, ICSD 2010 - Potsdam, Germany
Duration: Jul 4 2010Jul 9 2010

Publication series

NameProceedings of the 2010 IEEE International Conference on Solid Dielectrics, ICSD 2010

Conference

Conference2010 IEEE International Conference on Solid Dielectrics, ICSD 2010
Country/TerritoryGermany
CityPotsdam
Period07/4/1007/9/10

Keywords

  • Charge-trapping levels
  • Discharge-current spectroscopy
  • Kapton® polyimide
  • Photo-stimulated discharge

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