Scalable Hybrid Films of Polyimide‐Animated Quantum Dots for High‐Temperature Capacitive Energy Storage Utilizing Quantum Confinement Effect

Abstract The miniaturization trend of future electrical and electronic systems tender higher demands for high‐temperature resistant dielectric capacitors. The exponential increase in leakage current of dielectric polymers under high temperatures and strong electric fields is a pivotal bottleneck constraining the application of capacitors. Herein, a design is described where various animated quantum dots (A‐QDs), serving as crosslinkers, are introduced into the polyimide (PI) matrix to regulate the excitation and transport of carriers. Using fluorescence lifetime imaging (FLIM) and Kelvin probe force microscopy (KPFM), it is demonstrated that the intrinsic quantum confinement effect of quantum dots (QDs)…

• NN
  National Natural Science Foundation of China

  Awards: 92166203, 12474225, 51921005, 52307178, 52377023
• HY
  Huxiang Youth Talent Support Program

  Award: 2023RC3104