TY - JOUR
T1 - Control of crystal structure and performance evaluation of multi-piezo material of Li1xNaxNbO3:Pr3
AU - Hara, Hirotaka
AU - Xu, Chao Nan
AU - Wang, Ruiping
AU - Zheng, Xu Guang
AU - Nishibori, Maiko
AU - Nishibori, Eiji
N1 - Funding Information:
Acknowledgments This research was partially supported by JSPS KAKENHI Grant Numbers 19H00835, 18H04499 and 17H06374. The synchrotron radiation experiments were performed at the BL02B2 of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (Proposal No. 2017A1606, 2019A0068). We deeply thank all collaborators for their experimental support and helpful discussion, especially Prof. H. Tateyama, Ms. E. Kawasaki, I. Arima, F. Furusawa. M. Kubo, and Y. Asano at AIST, and H. Kasai, S. Takahashi at the University of Tsukuba.
Publisher Copyright:
©2020 The Ceramic Society of Japan. All rights reserved.
PY - 2020/8/1
Y1 - 2020/8/1
N2 - Piezoelectric LiNbO3:Pr3+ has recently attracted attention as a so-called multi-piezo material, exhibiting simultaneously piezoluminescence and piezoelectricity. In order to investigate and improve the performance of piezoluminescence and piezoelectricity in the newly found multi-piezo material LiNbO3:Pr3+, a systematic study has been carried out on both the crystal structural stability and the correlated multi-piezo performance through structure control between LiNbO3 and NaNbO3. Full set samples of Li1xNaxNbO3:Pr3+ (x = 01) with various Li/Na ratios were synthesized, and the crystal structure, piezoluminescence performance, piezoelectric property d33, and their correlations were systematically investigated. We found that four crystal phases, LiNbO3-R3c, NaNbO3-R3c, NaNbO3-P21ma, NaNbO3-Pbma, can exist stably with co-existence in Li1xNaxNbO3:Pr3+ by controlling the Li/Na ratio. A strong correlation between piezoluminescence and piezoelectric properties was verified. Furthermore, the highest piezoluminescence intensity and piezoelectric constant were realized near the phase boundary of NaNbO3-R3c and NaNbO3-P21ma, demonstrating the crystal structure control as a promising technology to engineer multi-piezo materials.
AB - Piezoelectric LiNbO3:Pr3+ has recently attracted attention as a so-called multi-piezo material, exhibiting simultaneously piezoluminescence and piezoelectricity. In order to investigate and improve the performance of piezoluminescence and piezoelectricity in the newly found multi-piezo material LiNbO3:Pr3+, a systematic study has been carried out on both the crystal structural stability and the correlated multi-piezo performance through structure control between LiNbO3 and NaNbO3. Full set samples of Li1xNaxNbO3:Pr3+ (x = 01) with various Li/Na ratios were synthesized, and the crystal structure, piezoluminescence performance, piezoelectric property d33, and their correlations were systematically investigated. We found that four crystal phases, LiNbO3-R3c, NaNbO3-R3c, NaNbO3-P21ma, NaNbO3-Pbma, can exist stably with co-existence in Li1xNaxNbO3:Pr3+ by controlling the Li/Na ratio. A strong correlation between piezoluminescence and piezoelectric properties was verified. Furthermore, the highest piezoluminescence intensity and piezoelectric constant were realized near the phase boundary of NaNbO3-R3c and NaNbO3-P21ma, demonstrating the crystal structure control as a promising technology to engineer multi-piezo materials.
UR - http://www.scopus.com/inward/record.url?scp=85090167827&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85090167827&partnerID=8YFLogxK
U2 - 10.2109/jcersj2.20015
DO - 10.2109/jcersj2.20015
M3 - Article
AN - SCOPUS:85090167827
SN - 1882-0743
VL - 128
SP - 518
EP - 522
JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
IS - 8
ER -