Charging property and charge trap parameters in porous polypropylene film using thermally stimulated current

Abstract

Polypropylene 392 frequency factor proposed a directly ratable method (named AEM-v(Yoshida & Maeta,1991)) for the first time even if a waveform condition of the TSC spectrum was bad. Polymer system piezoelectric material to use for this study is porous polypropylene. The temperature characteristic of the surface charge electric potential was examined directly by the thermally stimulated charge decay (TSCD) other than TSC measurement. In this study, it applied the AEM separation system which we proposed to the separation of the TSC spectrum and analyzed the property of the trap which imperforate polypropylene and porous polypropylene formed.

Evaluation of defect levels formed in the nano-porous titanium oxide layer of dye-sensitized solar cell

“…The current spectrum of P 3 was derived from the TSC spectrum detected in the first measurement. The AEM [4] developed was then applied to the resultant spectrum as shown in Fig.3, in the temperature range from 100K to 220K, because the current observed above 220 K was a conduction current. Four TSC spectra, marked with P L , P ma , P mb , and P H , were separated as shown in Fig.4 and the carrier trap parameters, e.g.…”

“…Asymptotic estimation method (AEM) [4] was developed to separate the component TSC from a composite TSC signal and estimate the carrier trap parameters, e.g. energy depth of charge trap (Et), escape frequency factor υ, and the temperature of the maximum point of each TSC component.…”