High Dielectric Breakdown Strength Nanoplatelet-Based Multilayer Thin Films Academic Article uri icon

abstract

  • AbstractDielectric materials that can withstand high voltages are of great interest due to the growing need for highperformance insulation systems in electronics. Polymer nanocomposites have gained popularity as electrical insulators due to their processability, high operating voltage, and tortuous paths for current flow created by the nanoparticles in the polymer matrix. The dielectric breakdown strength of a relatively thick multilayer thin film containing polyethylenimine (PEI) and vermiculite clay (VMT), thickened with tris(hydroxymethyl)aminomethane (tris), is evaluated as a function of bilayers (BL) deposited. The resulting nanobrick wall structure of this claybased assembly is ideal for protective insulation. An 8 BL PEI+tris/VMT film achieves a dielectric breakdown strength of 245kV mm1, with a thickness of 5m. With increasing bilayers, the breakdown strength gradually decreases, but 20 BL of PEI+tris/VMT achieves a breakdown voltage of 2.36kV. This nanoplateletbased system is the first thick growing layerbylayer deposited film to be used as an insulating layer. Its unusually high breakdown strength can be useful for the protection of various high voltage electronics.

published proceedings

  • MACROMOLECULAR MATERIALS AND ENGINEERING

author list (cited authors)

  • Palen, B., Iverson, E. T., Rabaey, M. G., Marjuban, S., Long, C. T., Kolibaba, T. J., ... Grunlan, J. C.

citation count

  • 0

complete list of authors

  • Palen, Bethany||Iverson, Ethan T||Rabaey, Matthew G||Marjuban, Shaik Merkatur Hakim||Long, Carolyn T||Kolibaba, Thomas J||Benson, Annie||Castaneda-Lopez, Homero||Grunlan, Jaime C

publication date

  • May 2023

publisher