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Piezoelectric Films: Outstanding Piezoelectric Performance in Lead‐Free 0.95(K,Na)(Sb,Nb)O 3 ‐0.05(Bi,Na,K)ZrO 3 Thick Films with Oriented Nanophase Coexistence (Adv. Electron. Mater. 4/2019)
Author(s) -
Wang Yumei,
Wu Haijun,
Qin Xian,
Yao Kui,
Pennycook Stephen J.,
Tay Francis Eng Hock
Publication year - 2019
Publication title -
advanced electronic materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.25
H-Index - 56
ISSN - 2199-160X
DOI - 10.1002/aelm.201970020
Subject(s) - materials science , piezoelectricity , ferroelectricity , clamping , polarization (electrochemistry) , lead (geology) , composite material , optoelectronics , dielectric , mechanical engineering , geomorphology , geology , chemistry , engineering
Outstandingly large piezoelectric response is achieved in lead‐free [100]‐KNSN‐BNKZ0.05 ferroelectric film. As reported by Kui Yao and co‐workers in article number 1800691 , this performance can be attributed to the coexistence of oriented R–T nanophases with gradual polarization rotations to lower the domain wall energy, and to the reduced in‐plan mechanical clamping effect with increased film thickness.