Enhanced ferroelectric polarization in tetragonally strained NaNbO3 thin film on single crystal Rh substrate

Optical Properties of Vanadium Pentoxide Deposited by ALD

“…If the heating was continued to over 500 o C, the intensities of the reflections decreased before vanishing completely. This is also ascribed to loss of alkali metal; however it unexpected as thin film deposition of these compounds is routinely performed at much higher temperatures [186].…”

Lead-free ZnSnO3/MWCNTs-based self-poled flexible hybrid nanogenerator for piezoelectric power generation

“…Among the lead-free perovskite piezoelectric materials, ZnSnO 3 is one of the most attractive because of higher remnant polarization (P r ∼ 59 μC cm −2 ) [23], which is larger than that of other materials, e.g. BaTiO 3 (P r 6 μC cm −2 ) [24], KNbO 3 (P r ∼ 23 μC cm −2 ) [25], AgNbO 3 (P r ∼ 52 μC cm −2 ) [26], NaNbO 3 (P r ∼ 40 μC cm −2 ) [27], LiTaO 3 (P r ∼ 32 μC cm −2 ) [28] and ZnO (P r ∼ 5 μC cm −2 ) [29]. The high remnant polarization of lead-free ZnSnO 3 inspired us to investigate comprehensively the performance of a nanogenerator made of ZnSnO 3 nanoparticles to improve the energy harvesting performance.…”

Flexible Lead-Free BiFeO3/PDMS-Based Nanogenerator as Piezoelectric Energy Harvester

“…Thus, the larger remnant polarization ( P r ) of materials is desirable for enhancing the performance of PNG devices. Ravindran et al reported their theoretical studies using density functional theory, predicting a large spontaneous polarization of about 90 μC/cm 2 along the [111] direction, which is larger than that of other materials such as ZnO ( P r ∼ 5 μC/cm 2 ), KNbO 3 ( P r ∼ 23 μC/cm 2 ), LiTaO 3 ( P r ∼ 32 μC/cm 2 ), AgNbO 3 ( P r ∼ 52 μC/cm 2 ), NaNbO 3 ( P r ∼ 40 μC/cm 2 ), and ZnSnO 3 ( P r ∼ 59 μC/cm 2 ) . Although BiFeO 3 with the R 3 c space group exhibits large spontaneous polarization, it has not been as extensively investigated as other lead-free perovskite materials in piezoelectric applications.…”