Superior High‐Temperature Energy Density in Molecular Semiconductor/Polymer All‐Organic Composites

Abstract High‐temperature dielectric polymers are in constant demand for the multitude of high‐power electronic devices employed in hybrid vehicles, grid‐connected photovoltaic and wind power generation, to name a few. There is still a lack, however, of dielectric polymers that can work at high temperature (> 150 °C). Herein, a series of all‐organic dielectric polymer composites have been fabricated by blending the n‐type molecular semiconductor 1,4,5,8‐naphthalenetetracarboxylic dianhydride (NTCDA) with polyetherimide (PEI). Electron traps are created by the introduction of trace amounts of n‐type small molecule semiconductor NTCDA into PEI, which effectively reduces the leakage current and improves the…

• NN
  National Natural Science Foundation of China

  Award: 51972202
• FR
  Fundamental Research Funds for the Central Universities

  Award: 2021CSZL001