Wet Chemical-Synthesized Low-Loss Dielectric Composite Material Based on CuCl-Cu7S4 Nanoparticles and PVDF Copolymer

Polymer composites with high dielectric permittivity (>10) and low dielectric loss are critical for energy storage and microelectronic applications. This study reports on a semi-transparent composite of a PVDF copolymer filled with Cu7S4 nanoparticles synthesized via a wet chemical route. Only a small content (6%) of copper sulfide increases the dielectric permittivity of the material from 10.4 to 15.9 (1 kHz), maintaining a low dielectric loss coefficient (less than 0.1). The incorporated nanoparticles affect the morphology of the composite film surface and crystalline phases in the whole volume, which was studied with FTIR spectroscopy, differential scanning calorimetry and scanning probe microscopy. © 2025 Elsevier B.V., All rights reserved.

Авторы
Mal’Tsev Alexander A. 1, 2 , Vodyashkin Andrey A. 2 , Buryanskaya Evgeniya L. 2, 3 , Koval Olga Yu 4 , Syuy A.V. 5 , Bibikov S.B. 1 , Maltseva I.E. 1 , Parshin B.A. 2 , Stoynova Anastasia M. 6 , Mikhalev Pavel A. 2 , Mstislav Makeev Olegovich 2
Журнал
Polymers
Издательство
Multidisciplinary Digital Publishing Institute (MDPI)
Номер выпуска
13
Язык
Английский
Статус
Опубликовано
Ссылка
Внешняя ссылка
DOI
10.3390/POLYM17131845
Номер
1845
Том
17
Год
2025
Организации
  • 1 Department of Electronics of Organic Materials, Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russian Federation
  • 2 Laboratory of Technologies of Polymer Ferroelectrics, Bauman Moscow State Technical University, Moscow, Russian Federation
  • 3 Department of Materials Science of Semiconductors and Dielectrics, National University of Science & Technology (MISIS), Moscow, Russian Federation
  • 4 National Research Centre "Kurchatov Institute", Moscow, Russian Federation
  • 5 Department of General Physics, Perm National Research Polytechnic University, Perm, Russian Federation
  • 6 Institute of Pharmacy and Biotechnology, RUDN University, Moscow, Russian Federation
Ключевые слова
composite; copper sulfide; flexible electronic; low-loss dielectric; polymer dielectric; polyvinylidene fluoride
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