Poole–Frenkel Effect and the Opportunity of Its Application for the Prediction of Radiation Charge Accumulation in Thermal Silicon Dioxide
- Authors: Shiryaev A.A.1, Vorotyntsev V.M.2, Shobolov E.L.1
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Affiliations:
- Research and Development Center, Sedakov Measuring Systems Research Institute
- Alekseev Nizhny Novgorod State Technical University
- Issue: Vol 52, No 9 (2018)
- Pages: 1114-1117
- Section: Surfaces, Interfaces, and Thin Films
- URL: https://journals.rcsi.science/1063-7826/article/view/203974
- DOI: https://doi.org/10.1134/S1063782618090166
- ID: 203974
Cite item
Abstract
It is proposed that the Poole–Frenkel effect be applied to predict radiation-induced charge accumulation in thermal silicon dioxide. Various conduction mechanisms of thermal silicon dioxide are considered, the conditions of the appearance of the Poole–Frenkel effect in it are determined, and the characteristics of donor centers participating in Poole–Frenkel electrical conductivity are calculated. A donor center level at an energy of 2.34 eV below the conduction-band bottom is determined and the concentration of ionized donor centers of 1.0 × 109 cm–3 at 400 K and a field strength of 10 MV/cm is found. It is concluded that the Poole–Frenkel effect can be applied not for prediction of the absolute value of the radiation-induced charge but for comparison of the samples in terms of the ability to accumulate it.
About the authors
A. A. Shiryaev
Research and Development Center, Sedakov Measuring Systems Research Institute
Author for correspondence.
Email: alsh92@rambler.ru
Russian Federation, Nizhny Novgorod, 603137
V. M. Vorotyntsev
Alekseev Nizhny Novgorod State Technical University
Email: alsh92@rambler.ru
Russian Federation, Nizhny Novgorod, 603950
E. L. Shobolov
Research and Development Center, Sedakov Measuring Systems Research Institute
Email: alsh92@rambler.ru
Russian Federation, Nizhny Novgorod, 603137