Heat treatment and photoluminescence of 3-D vertical arrays of Al2O3 nanopores on Al fabrics or foils.

Highlights: [•] Porous anodic alumina with highly ordered array of nanopores was prepared on Al fabric or foil by a two-step anodization process. [•] The porous anodic alumina layer is detached from the Al wire substrate after annealing at 600°C. [•] The white Al2O3 nanopores fabric was dyed to pink after Rhodamine B introduced into the pores of anodic layer. [•] The intensities of photoluminescence increase first, at 500°C reach a maximum value, and then decrease. [ABSTRACT FROM AUTHOR]