Abstract
High energy ion irradiation effects on the transient current behaviour in the range of 0.05–2 s have been investigated. Polyetherimide samples of 25 µm thickness were irradiated with 100 MeV Ag + beam (fluences: 5.6 × 10 10, 1.8 × 10 11, 1.8 × 10 12 10 12 ions/cm 2). The transient currents were obtained in the temperature range 40–250 °C for step fields ranging from 40 to 600 kV/cm. The half decay time of the transient currents is field dependent and increases from 0.15 s at 40 kV/cm to 0.30 s at 600 kV/cm. The dipolar relaxation strength, estimated from transient current data, reveals the demerization of carbonyl groups and formation of radiation induced subpolar groups due to irradiation. The charge carrier mobility for pristine and ion irradiated samples at different temperatures and fields have been calculated. The charge carrier mobility is governed by several factors like nature of trapping sites and trap density, crystallinity, backbone conjugation and operating temperature etc.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
