Polyethylene terephthalate capacitor film doping: Selection of conditions
https://doi.org/10.26907/2542-064X.2025.4.658-668
Abstract
Polyethylene terephthalate (PET) film has good dielectric properties but high radiation-induced conductivity, which can be reduced by doping commercially available electrical insulation films with small electron-trapping molecules. This study investigates the doping process of PET-CE capacitor film (State Standard 24234-80) using fluorenone-based dopants, such as 2,7-dinitro-9-fluorenone (DNF) and 2,5,7-trinitro-9-fluorenone (TNF), and focusing on the role of the solvent (ethylene glycol and benzyl alcohol). The optimal doping temperature range was selected to be between the glass transition temperature of the doping polymer (88 °С for PET, lower limit) and the boiling point of the solvent (upper limit). The appropriate solvent and dopant solution concentrations were determined. Based on the experimental results, ethylene glycol and benzyl alcohol were selected as solvents for TNF and DNF, respectively. The following solvent selection criteria for doping systems were established: high boiling point, high dopant solubility, and low affinity for the polymer matrix.
About the Authors
E. I. Popova
Dukhov Automatics Research Institute
Россия
Competing Interests:
Россия
Ekaterina I. Popova, Dr. Sci. (Engineering), Head of Laboratory within Research Department, Laboratory of Polymeric Materials
Moscow
Competing Interests:
The authors declare no conflicts of interest
Yu. S. Kuznetsova
Dukhov Automatics Research Institute
Россия
Competing Interests:
Россия
Yuliya S. Kuznetsova, First Rank Engineer, Laboratory of Polymeric Materials
Moscow
Competing Interests:
The authors declare no conflicts of interest
O. L. Lazareva
Dukhov Automatics Research Institute
Россия
Competing Interests:
Россия
Olga L. Lazareva, Cand. Sci. (Chemistry), Leading Specialist in Physical and Chemical Research of Polymeric Materials, Laboratory of Polymeric Materials
Moscow
Competing Interests:
The authors declare no conflicts of interest
R E. Nevskiy
Dukhov Automatics Research Institute
Россия
Competing Interests:
Россия
Roman E. Nevskiy, Cand. Sci. (Engineering), Head of Research Department
Moscow
Competing Interests:
The authors declare no conflicts of interest
A. V. Sokovishin
Dukhov Automatics Research Institute
Россия
Competing Interests:
Россия
Alexey V. Sokovishin, Dr. Sci. (Engineering), Senior Researcher, Deputy Chief Designer – Head of Division
Moscow
Competing Interests:
The authors declare no conflicts of interest
References
1. Kurtz S.R., Arnold C., Jr., Hughes R.C. Effect of chemical doping on the radiation-induced conductivity of polyethylene terephthalate. Appl. Phys. Lett., 1983, vol. 43, no. 12, pp. 1132–1134. https://doi.org/10.1063/1.94257.
2. Kurtz S.R., Arnold J.C., Jr. Photocarrier transport and trapping processes in doped polyethylene terephthalate films. J. Appl. Phys., 1985, vol. 57, no. 7, pp. 2532–2537. https://doi.org/10.1063/1.335441.
3. Khatipov S.A. Radiation-induced electron transport processes in polymeric dielectrics (a review). High Energy Chem., 2001, vol. 35, no. 5, pp. 291–307. https://doi.org/10.1023/A:1011914004155.
4. Tyutnev A.P., Saenko V.S., Smirnov I.A., Pozhidaev E.D. Radiation-induced conductivity in polymers during long-term irradiation. High Energy Chem., 2006, vol. 40, no. 5, pp. 319–330. https://doi.org/10.1134/S0018143906050079.
5. Zhutayeva Yu.R., Khatipov S.A. Relaxation model of radiation-induced conductivity in polymers. Nucl. Instrum. Methods Phys. Res., Sect. B, 1999, vol. 151, nos. 1–4, pp. 372–376. https://doi.org/10.1016/S0168-583X(99)00154-8.
6. Faria R.M., Gross B., Filho R.G. Radiation-induced conductivity of polymers in different gases. J. Appl. Phys., 1987, vol. 62, no. 4, pp. 1420–1424. https://doi.org/10.1063/1.339646.
7. Yang G.M., Sessler G.M. Radiation-induced conductivity in electron-beam irritated insulating polymer films. IEEE Trans. Electr. Insul., 1992, vol. 27, no. 4, pp. 843–848. https://doi.org/10.1109/14.155808.
8. Hayashi K., Yoshino K., Inuishi Y. Carrier mobilities in insulating polymers measured by time of flight method. Jpn. J. Appl. Phys., 1975, vol. 14, no. 1, pp. 39–45. https://doi.org/10.1143/JJAP.14.39.
9. Kurtz S.R. Observation of electron transport in polyethylene terephthalate and the radiation hardening of dielectrics. Appl. Phys. Lett., 1985, vol. 46, no. 11, pp. 1105–1107. https://doi.org/10.1063/1.95724.
10. Fan W.C., Drumm C.R., Roeske S.B., Scrivner G.J. Shielding considerations for satellite microelectronics. IEEE Trans. Nucl. Sci., 1996, vol. 43, no. 6, pp. 2790–2796. https://doi.org/10.1109/23.556868.
11. Kurtz S.R., Hughes R.C. Radiation-induced photoconductivity in polymers: Poly(vinylidene fluoride) compared with polyethylene terephthalate. J. Appl. Phys., 1983, vol. 54, no. 1, pp. 229–237. https://doi.org/10.1063/1.331746.
12. Lenhart J.L., Cole P.J., Cole S.M., Schroeder J.L., Belcher M. Radiation tolerant polymeric films through the incorporation of small molecule dopants in the polymer matrix. J. Appl. Phys., 2008, vol. 103, no. 2, art. 024908. https://doi.org/10.1063/1.2832755.
13. Klein R.J., Schroeder J.L., Cole S.M., Belcher M.E., Cole P.J., Lenhart J.L. Reduction of radiationinduced conductivity in poly(ethylene terephthalate): Effect of dopant structure. Polymer, 2008, vol. 49, no. 11, pp. 2632–2635. https://doi.org/10.1016/j.polymer.2008.03.048.
14. Lardon M., Lell-döller E., Weigl J.W. Charge transfer sensitization of some organic photoconductors based on carbazole. Mol. Cryst., 1967, vol. 2, no. 3, pp. 241–266. https://doi.org/10.1080/15421406708083419.
15. Melz P.J. Photogeneration in trinitrofluorenone–poly(N–vinylcarbazole). J. Chem. Phys., 1972, vol. 57, no. 4, pp. 1694–1699. https://doi.org/10.1063/1.1678457.
16. Hughes R.C. Bulk recombination of charge carriers in polymer films: Poly-N-vinylcarbazole complexed with trinitrofluorenone. J. Chem. Phys., 1973, vol. 58, no. 6, pp. 2212–2219. https://doi.org/10.1063/1.1679494.
17. Klein R.J., Cole S.M., Belcher M.E., Schroeder J.L., Cole P.J., Lenhart J.L. Radiation tolerance in polymeric dielectrics by small-molecule doping, part I: Dopant uptake as a function of temperature, time, and chemistry. Polymer, 2008, vol. 49, no. 25, pp. 5541–5548. https://doi.org/10.1016/j.polymer.2008.08.067.
18. Wunderlich B. Thermal Analysis of Polymeric Materials. Berlin, Heidelberg, Springer, 2005. xvi, 894 p. https://doi.org/10.1007/b137476.
19. Lide D.R. Basic Laboratory and Industrial Chemicals: A CRC Quick Reference Handbook. Boca Raton, FL, CRC Press, 1993. 384 p. https://doi.org/10.1201/9780429333026.
20. Kurtz S.R., Arnold C., Hughes R.C. Development of a radiation hardened polymer dielectric by chemical doping. IEEE Trans. Nucl. Sci., 1983, vol. 30, no. 6, pp. 4077–4080. https://doi.org/10.1109/TNS.1983.4333084.
Review
For citations:
Popova E.I., Kuznetsova Yu.S., Lazareva O.L., Nevskiy R.E., Sokovishin A.V. Polyethylene terephthalate capacitor film doping: Selection of conditions. Uchenye Zapiski Kazanskogo Universiteta Seriya Estestvennye Nauki. 2025;167(4):658-668. (In Russ.) https://doi.org/10.26907/2542-064X.2025.4.658-668
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