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 …

[HTML][HTML] Electrode-dependent asymmetric conduction mechanisms in K0. 5Na0. 5NbO3 micro-capacitors

C Groppi, F Maspero, A Rovelli, M Asa… - Materials Science in …, 2023 - Elsevier
The ultimate performance of devices employing lead-free piezoelectrics is determined not
only by the intrinsic properties of the piezo, but also by processes and materials employed to …

[HTML][HTML] Spontaneous pattern of orthogonal ferroelectric domains in epitaxial KNN films

C Groppi, F Maspero, M Asa, G Pavese… - Journal of Applied …, 2023 - pubs.aip.org
Lead-free piezoelectric (K, Na) NbO 3 (KNN) is considered one of the promising candidates
for the replacement of Pb (Zr x Ti 1− x) O 3. Several studies underlined the issue of K and Na …

Li diffusion and surface segregation in K0. 5Na0. 5NbO3 films grown by Pulsed Laser Deposition

C Groppi, S Vangelista, E Ravizza, S Spadoni… - Thin Solid Films, 2022 - Elsevier
Abstract Potassium Sodium Niobate has recently raised particular attention in the field of
piezoelectric perovskites thanks to its remarkable piezoelectric properties and high Curie …

Thin films of lead-free oxides for piezoelectric and ferroelectric applications

C Groppi - 2022 - politesi.polimi.it
Electronic technologies are becoming increasingly sophisticated and pervasive in modern
everyday lives. Notably, the market for sensors and actuators is exponentially growing year …

Functional properties of K0. 5Na0. 5NbO3 based devices fabricated by pulsed laser deposition and rapid thermal processing

A Rovelli - 2021 - politesi.polimi.it
This thesis work was carried out at PoliFAB, the micro and nanotechnology center of the
Politecnico di Milano with the help and support of STMicroelectronics. This joint research …