Preparation of Y3Ga5O12:Pr3+ nanotubes with a single-crystal structure via single-nozzle electrospinning for temperature sensing applications

Abstract

One-dimensional (1D) Y₃Ga₅O₁₂:Pr³⁺ nanotubes (YGG:Pr³⁺ NTs) were prepared via single-nozzle electrospinning at 30% ambient humidity. The outer diameters of the YGG:Pr³⁺ NTs are between 190 and 210 nm, and the wall thickness is 35–45 nm. The nanotube consists of single-crystal YGG:Pr³⁺ nanoparticles. The optical properties of YGG:Pr³⁺ NTs with different Pr³⁺ concentrations, particularly their temperature-sensitive properties, were investigated. The YGG: 0.5% Pr³⁺ NTs exhibit the highest sensitivity of approximately 7.90 × 10⁻³ K⁻¹ within the temperature range of 303–453 K.