Defect engineering for arresting aging in donor-acceptor co-doped BaTiO3

被引：0
|
作者：
Jumana, P. J. [1 ]
Karthik, T. [1 ]
Kumar, V. [1 ,2 ]
机构：
[1] Univ Calicut, Govt India, Ctr Mat Elect Technol C MET Sci Soc, Minist Elect & Informat Technol MeitY,Res Ctr, Trichur 680581, India
[2] Indian Inst Technol, Dept Chem, Palakkad 678623, India
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2025年 / 1014卷
关键词：
Piezoelectrics; Hybrid-doping; Aging; Defect chemistry; Electron paramagnetic resonance spectroscopy; BARIUM-TITANATE; PIEZOELECTRIC PROPERTIES; DIELECTRIC-PROPERTIES; RAMAN-SCATTERING; CERAMICS; SITE;
D O I：
10.1016/j.jallcom.2025.178642
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
This study unravels the mechanistic aspects of aging in donor-acceptor co-doped piezoelectric materials and proposes an innovative method to inhibit the aging process. It comprehensively analyses the structural effects of B-site manganese and niobium co-doping in BaTiO3 and aging in compositions with varying donor/acceptor and Ba/Ti ratios. Through systematic Raman and electron paramagnetic resonance spectroscopic investigations, this study establishes the mechanism responsible for aging in piezoelectrics. The novel aspect of the methodology adopted here is that it also yields piezoceramics with enhanced dielectric and piezoelectric characteristics.
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页数：10
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