Structural, microstructural and transport properties study of lanthanum lithium titanium perovskite thin films grown by Pulsed Laser Deposition

Pulsed Laser Deposited Films for Microbatteries

“…The typical growth of LLTO thin films fabricated by the laser ablation technique is obtained at deposition temperatures in the range of 600 to 800 • C under a controlled oxygen pressure from 0.1 to 100 Pa [268]. LLTO films, such as Li 3x La (2/3)−x TiO 3 , exhibit a high ionic conductivity of up to 10 −5 S·cm −1 when deposited with pulsed laser deposition [269][270][271]. Li 0.5 La 0.5 TiO 3 (LLTO) PLD thin films, prepared at 400 to 600 • C, are amorphous and show an ionic conductivity of~2 × 10 −5 S·cm −1 at room temperature.…”

“…The highest σ i of 1.2 × 10 −3 S·cm −1 (E a = 0.35 eV) obtained for Li 0.5 La 0.5 TiO 3 films deposited on an Ag substrate was due to the absence of grain boundaries. Maqueda optimized the PLD growth parameters to prepare La 0.57 Li 0.29 TiO 3 dense films at T s = 700 • C under P O 2 = 15 Pa with smooth surfaces [271]. The obtained nano-crystalline films exhibited domains, which are cubic and tetragonal modifications of the perovskite phase.…”

Investigation of structure and electrical properties of Li0.5La0.5TiO3 ceramics via microwave sintering

“…As known, this conventional preparation method needs high sintering temperature (∼1350 • C) and long sintering time (e.g., several hours), which results in serious lithium loss during sintering process. As alternatives, some other methods including sol-gel method, pulsed laser deposition and microwave sintering method have been employed to prepare LLTO ceramics pellets or thin films [10][11][12][13]. Among these methods, the microwave sintering method is regarded as a fast and economical method for ceram- * Corresponding author.…”

Sol–gel-processed amorphous inorganic lithium ion electrolyte thin films: sol chemistry

“…11 Amorphous LLTO thin lms have been prepared by vacuumbased methods, such as PLD, e-beam evaporation, and RF magnetron sputtering. [12][13][14][15] Recently, we successfully prepared amorphous LLTO thin lms by sol-gel process. 16,17 Preparation of thin lm by sol-gel process includes following ve steps: synthesizing an appropriate sol, coating the sol onto a substrate, drying wet gel lm, ring the dried gel lm to completely remove organic components, and annealing the red lm to obtain a desired thin lm.…”