Femtosecond Laser Atomic–Nano–Micro Fabrication of Biomimetic Perovskite Quantum Dots Films toward Durable Multicolor Display

Perovskite quantum dots (QDs) have emerged as revolutionary materials for next-generation display technologies due to their tunable bandgaps, high color purity, and low-cost fabrication. However, challenges persist in outdoor display applications, including poor stability, inadequate weatherability designs, and multicolor integration difficulties. This study proposes a bioinspired “atomic–nano–micro” fabrication strategy based on femtosecond laser direct writing (FsLDW). By synergizing transient laser thermodynamic modulation with surface micro/nanostructural engineering, dual-functional architectures are simultaneously constructed on a polyvinylidene fluoride (PVDF) substrate. The upper layer utilizes laser…

• NN
  National Natural Science Foundation of China

  Awards: 52475499, 52222513
• NS
  Natural Science Foundation of Hunan Province

  Awards: 2024JJ5426, 2025JJ30016
• NK
  National Key Research and Development Program of China

  Award: 2023YFB4604200
• FR
  Fundamental Research Funds for Central Universities of the Central South University

  Award: 2025ZZTS0197