articleNature CommunicationsJul 1, 2025GOLD OA

Enhancing energetic disorder in all-organic composite dielectrics for high-temperature capacitive energy storage

TZTan ZengMLMeng LiQLQiao LiDLDongduan LiuQZQian Zhou

Hunan University · Tsinghua University

PubMed
Indexed incrossrefdoajpubmed

Abstract

Abstract The urgent demand for capacitive energy storage at elevated temperatures is limited by significant leakage currents in existing polymer dielectrics, which lead to excessive heat generation and increase the risk of thermal runaway. Here we demonstrate a strategy to mitigate conduction loss by modulating energetic disorder within the polymer matrix. Incorporation of high-polarity organic molecules into polyetherimide enhances dipole-dipole interactions, increasing energetic disorder and thereby decreasing charge carrier mobility. Experimental measurements and computational simulations reveal that disorder-induced energy fluctuations broaden the energy separation between transport states, effectively…

Citation impact

65
total citations
FWCI
34.51
Percentile
100%
References
50
Citations per year

Authors

8

Topics & keywords

Topics
Keywords
  • Materials science
  • Dielectric
  • Dipole
  • Capacitive sensing
  • Thermal conduction
  • Energy storage
  • Composite number
  • Optoelectronics
UN Sustainable Development Goals
  • Affordable and clean energy
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