LiNbO 3 :Pr 3+ : A Multipiezo Material with Simultaneous Piezoelectricity and Sensitive Piezoluminescence

Red-emitting piezoluminescence (elasticoluminescence) is achieved by doping rare earth Pr into the well-known piezoelectric matrix, LiNbO . By precisely tuning the Li/Nb ratio in nonstoichiometric Li NbO :Pr , a material that exhibits an unusually high piezoluminescence intensity, which far exceeds...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2017-06, Vol.29 (22)
Main Authors: Tu, Dong, Xu, Chao-Nan, Yoshida, Akihito, Fujihala, Masayoshi, Hirotsu, Jou, Zheng, Xu-Guang
Format: Article
Language:English
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Summary:Red-emitting piezoluminescence (elasticoluminescence) is achieved by doping rare earth Pr into the well-known piezoelectric matrix, LiNbO . By precisely tuning the Li/Nb ratio in nonstoichiometric Li NbO :Pr , a material that exhibits an unusually high piezoluminescence intensity, which far exceeds that of any well-known piezoelectric material, is produced. Li NbO :Pr shows excellent strain sensitivity at the lowest strain level, with no threshold for stress sensing. These multipiezo properties of sensitive piezoluminescence in a piezoelectric matrix are ideal for microstress sensing, damage diagnosis, electro-mechano-optical energy conversion, and multifunctional control in optoelectronics.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201606914