Fabrication of High-Density BiFeO3 Nanodots Array on Flexible Mica Substrate via Template-Assisted Method

This work presents a template-assisted technique to fabricate BFO nanodots array on the flexible substrates. The results indicate that the combination of AAO membrane templated with pulsed laser deposition enables the epitaxial growth of high-quality, density packed, and orderly nanodots array on flexible mica substrate. The BFO nanodots array fabricated by this method exhibits good flexibility, ferroelectric properties and resistive switching performance. Comparing to the complex, multi-step transfer process and potential film damage associated with traditional technology, this one-step growth strategy on flexible substrates effectively overcomes these significant challenges. It is suggested that this technique can be extended to fabricate other functional oxides, offering a new approach for flexible electronic devices that demand multifunctional, high-density nanostructures.