Hyperfine Structure in the OD ESR Spectra of Recombining Charge Pairs in Doped Polyethylene Matrices
- Authors: Verkhovlyuk V.N.1, Borovkov V.I.1,2, Bagryansky V.A.1, Zikirin S.B.1,2, Taratayko A.I.3, Anisimov O.A.1, Molin Y.N.1
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Affiliations:
- Voevodsky Institute of Chemical Kinetics and Combustion
- Novosibirsk State University
- Novosibirsk Institute of Organic Chemistry
- Issue: Vol 49, No 4 (2018)
- Pages: 345-355
- Section: Original Paper
- URL: https://journals.rcsi.science/0937-9347/article/view/248506
- DOI: https://doi.org/10.1007/s00723-018-0978-1
- ID: 248506
Cite item
Abstract
The hyperfine structure has been resolved in the optically detected electron spin resonance (OD ESR) spectra of radical ion pairs generated by ionizing radiation at a low dopant concentration in a solid polyethylene matrix at room temperature. The different organic molecules that can capture electrons and holes were used as the dopants. The spin-lattice relaxation times T1 for radical ions of dopants were estimated to be tens of microseconds. The temperature dependence of OD ESR signal intensity indicates the diffusion-assisted mechanism of recombination of radical ion pairs in polyethylene.
About the authors
V. N. Verkhovlyuk
Voevodsky Institute of Chemical Kinetics and Combustion
Author for correspondence.
Email: v_ver@kinetics.nsc.ru
Russian Federation, Novosibirsk
V. I. Borovkov
Voevodsky Institute of Chemical Kinetics and Combustion; Novosibirsk State University
Email: v_ver@kinetics.nsc.ru
Russian Federation, Novosibirsk; Novosibirsk
V. A. Bagryansky
Voevodsky Institute of Chemical Kinetics and Combustion
Email: v_ver@kinetics.nsc.ru
Russian Federation, Novosibirsk
S. B. Zikirin
Voevodsky Institute of Chemical Kinetics and Combustion; Novosibirsk State University
Email: v_ver@kinetics.nsc.ru
Russian Federation, Novosibirsk; Novosibirsk
A. I. Taratayko
Novosibirsk Institute of Organic Chemistry
Email: v_ver@kinetics.nsc.ru
Russian Federation, Novosibirsk
O. A. Anisimov
Voevodsky Institute of Chemical Kinetics and Combustion
Email: v_ver@kinetics.nsc.ru
Russian Federation, Novosibirsk
Yu. N. Molin
Voevodsky Institute of Chemical Kinetics and Combustion
Email: v_ver@kinetics.nsc.ru
Russian Federation, Novosibirsk