Masaki OKURA   Yoshiharu ITO   Takahisa SHIRAISHI   Takanori KIGUCHI   Toyohiko J. KONNO   Hiroshi FUNAKUBO   Hiroshi UCHIDA   
Journal of the Ceramic Society of Japan 130(1) 123-130 2022年1月 [査読有り]
Low-temperature processing based on microwave-assisted hydrothermal synthesis was proposed for deposition of piezoelectric oxoate KNbO3 films. The films were deposited on various substrates at reaction temperature below 200 degrees C using Nb2O5 p...
Hiroshi Uchida   Masaki Okura   Yoshiharu Ito   Takahisa Shiraishi   Takanori Kiguchi   Toyohiko J. Konno   Hiroshi Funakubo   
Japanese Journal of Applied Physics 59(SP) SPPB02-SPPB02 2020年11月 [査読有り]
Rapid processing for hydrothermal deposition of (K,Na)NbO3(KNN) thick films was proposed with the assistance of microwave (MW) heating, for short-time fabrication of ferroelectric/piezoelectric films with thicknesses of several micrometers within ...
Appl. Phys. Lett. 117(14) 1429030103-1-5 2020年10月 [査読有り]
Using a hydrothermal method, (K0.88Na0.12)NbO3 films were deposited at 240 degrees C on (100)(c)SrRuO3//(100)SrTiO3 substrates. Moreover, without any poling treatment, direct and inverse transverse piezoelectric coefficients, e(31,f), near 0kV/cm ...