Effect of temperature fields on optical properties of La₂Ti₂O₇ thin films

Origin of the Enhanced Piezoelectricity of Vanadium-Doped La2Ti2O7 Ceramics

“…For both LTO and LTVO-0.04, the measured binding energies of ∼458.4 eV for Ti 2p 3/2 and ∼464.2 eV for Ti 2p 1/2 , which are attributed by Ti 4+ ions, are in agreement with reported data. 35,36 The Ti 3+ ions are associated with the binding energies of ∼456.94 (Ti 2p 3/2 ) and ∼462.94 eV (Ti 2p 1/2 ). 37 According to the shape of the Ti 2p peak and the fitting result, no obvious Ti 2p 3/2 or Ti 2p 1/2 peak splitting can be observed.…”

The Characterizations of La<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> Thin Films Deposited by Pulsed Laser Deposition at Different Annealing Temperatures

“…The thickness of the LTO thin films deposited at the three different temperatures has been measured using profilometer Dektak XT (see table 1). the thickness of the LTO thin films was found to be decreased by increasing the annealing temperature, Because the deposited particles enhanced their energy from the substrate and become more active as the resulting of increasing their motions with the temperature, appearing as the thinner thickness of these films [23] which is an inversely proportional relationship (see figure 3).…”

Influence of the Annealing Temperature on the Thickness and Roughness of La<SUB>2</SUB>Ti<SUB>2</SUB>O<SUB>7</SUB> Thin Films

“…ure 4 the thickness of the film decreased with the increasing of the annealing temperature for all the three samples. because the deposited molecules become more active due to energy gained from the substrate holder as resulting in increasing their motion with increasing the temperature as well as reducing their potential force to the substrate which is appearing in fewer micro-porosity defects, higher compactness and thinner thickness of these films [23].…”

“…Lately, many researchers investigated the effect of deposition temperature on thin films properties such as Yuli Xiong and Hai Zheng in 2011 reviewed the influences of annealing temperature against the structure, morphology, optical and electric properties of Lithium Lanthanum Titanate (LLTO) thin films prepared by RF magnetron sputtering [21]. While in 2018 Jianchao and Wanmin summarized the impact of deposition temperature on the refractive index and the extinction coefficient of LaTiO 3 thin films deposited by electron beam evaporation on Si and fused quartz substrates accompanied with other study of La 2 Ti 2 O 7 thin films as well in the same year [22] [23]. Obviously, increasing the deposition temperature and the variation of the thermal stability during the deposition is highly effective for the thin film properties.…”