Improving the Stability of Metal Halide Perovskite Quantum Dots by Encapsulation

Abstract Metal halide perovskite quantum dots (PQDs), with excellent optical properties and spectacular characteristics of direct and tunable bandgaps, strong light‐absorption coefficients, high defect tolerance, and low nonradiative recombination rates, are highly attractive for modern optoelectronic devices. However, the stability issue of PQDs remains a critical challenge of this newly emerged material despite the recent rapid progress. Here, the encapsulation strategies to improve the stability of PQDs are comprehensively reviewed. A special emphasis is put on the effects of encapsulation, ranging from the improvement of chemical stability, to the inhibition of light‐induced decomposition, to the…

• NN
  National Natural Science Foundation of China

  Awards: 21674049, 21601091, 61875090, 61604079, 21274065
• NS
  Natural Science Foundation of Jiangsu Province

  Award: BK20160891
• NU
  Nanjing University of Posts and Telecommunications

  Award: NY216028