Potassium‐sodium‐niobate‐based thin films: lead free for micro‐piezoelectrics

SW Zhang, Z Zhou, J Luo, JF Li - Annalen der Physik, 2019 - Wiley Online Library
Extensive research and great progress of (K, Na) NbO3 (KNN)‐based lead‐free
piezoelectric films have been driven by the current legislation and the requirement for …

Sizing up (K 1− x Na x) NbO 3 films: a review of synthesis routes, properties & applications

SR Burns, MR Dolgos - New Journal of Chemistry, 2021 - pubs.rsc.org
Potassium sodium niobate,(K1− xNaxNbO3, KNN), is often discussed in the realm of lead-
free piezoelectrics due to the widespread restrictions on the use of hazardous lead in …

Achieving a high dielectric tunability in strain-engineered tetragonal K0.5Na0.5NbO3 films

L Hao, Y Yang, Y Huan, H Cheng, YY Zhao… - npj Computational …, 2021 - nature.com
Abstract Using a modified Landau-Devonshire type thermodynamic potential, we show that
dielectric tunability η of a tetragonal ferroelectric film can be analytically solved. At a given …

Interfacial Strain-Insensitive Thermal and Electrical Stability of (K,Na)NbO3-Based Lead-Free Ferroelectric Films

B Zhu, Z Kong, H Cheng, K Han, P Chen… - The Journal of …, 2024 - ACS Publications
Despite the inherent strain relaxation in perovskite-type oxide ferroelectric films that occurs
beyond a certain thickness, the interfacial states, including carrier and strain, can still …

Stress induced effects on piezoelectric polycrystalline potassium sodium niobate thin films

R Pinho, R Vilarinho, JA Moreira, F Zorro… - Journal of Materials …, 2023 - pubs.rsc.org
The piezoelectric market is ruled by lead-based compounds that should be substituted by
environmentally friendly materials. Despite the substantial literature on lead-free candidates …

Monoclinic (K,Na)NbO3 Ferroelectric Phase in Epitaxial Films

J Luo, W Sun, Z Zhou, HY Lee, K Wang… - Advanced Electronic …, 2017 - Wiley Online Library
Monoclinic phases, as intermediate phases at the morphotropic phase boundary, have been
considered as the origin of high piezoelectricity in various piezoelectric systems. However …

Strong Effect of Oxygen Partial Pressure on Electrical Properties of 0.5Ba(Zr0.2Ti0.8)O3–0.5(Ba0.7Ca0.3)TiO3 Thin Films

Q Lin, D Wang, S Li - Journal of the American Ceramic Society, 2015 - Wiley Online Library
0.5 Ba (Zr0. 2Ti0. 8) O3–0.5 (Ba0. 7Ca0. 3) TiO3 (BCZT) epitaxial thin films were grown on
SrRuO3 (SRO) coated (001)‐oriented SrTiO3 (STO) single crystal substrates by pulsed laser …

A Novel Multiple Interface Structure with the Segregation of Dopants in Lead‐Free Ferroelectric (K0.5Na0.5)NbO3 Thin Films

C Li, L Wang, W Chen, L Lu, H Nan… - Advanced materials …, 2018 - Wiley Online Library
Interfaces in oxides are found to possess different properties and can be engineered for
modifying local structure and properties of nearby area. In this work, it is reported that the …

Robust Ferroelectric Properties in (K,Na)NbO3-Based Lead-Free Films via a Self-Assembled Nanocomposite Approach

L Xu, F Chen, F **, H Huang, L Qu… - … applied materials & …, 2020 - ACS Publications
(K, Na) NbO3-based lead-free ferroelectric materials are highly desired in modern electronic
applications and have long been considered as a strong candidate for replacing (Pb, Zr) …

Tuning electrical properties and phase transitions through strain engineering in lead-free ferroelectric K0. 5Na0. 5NbO3-LiTaO3-CaZrO3 thin films

L Xu, F Chen, F **, D Lan, L Qu, K Zhang… - Applied Physics …, 2019 - pubs.aip.org
The effects of epitaxial strain on the properties of 0.95 (K 0.49 Na 0.49 Li 0.02)(Ta 0.2 Nb
0.8) O 3-0.05 CaZrO 3 (KNNLT-CZ) thin films are investigated. La 0.07 Sr 0.93 SnO 3 and …