Current Detection and Energy Harvesting Integrated Magnetoelectric Sensor with Flexibility and Heat Resistance Based on Polylactide/VB2 Composites and FeCoV. Issue 9 (17th January 2022)

• Record Type: Journal Article
• Authors: Yi, Na; Ling, Xuan; Zhang, Qian; Xu, Guokai; Hu, Xiaoran; Li, Bingya; Lin, Wei; Xiao, Shaoqiu; Xiang, Yong
• Is Part Of: Advanced materials interfaces. Volume 9:Issue 9(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-01-17
• Subjects: FeCoV -- flexible current sensors -- heat resistance of magnetoelectric current sensors -- polylactide; Materials science -- Periodicals; 620.11
• DOI: 10.1002/admi.202102048
• Languages: English
• ISSNs: 2196-7350

Abstract

Abstract: The highly miniaturized and integrated electronic devices have demanded contactless current sensors with scale miniaturization, structure flexibility, self‐powering and heat resistance. Herein, a novel magnetoelectric current sensor (MCS) based on polylactide/VB2 composites and FeCoV is prepared using in‐situ coating and poling‐free methods. The use of polylactide/VB2 composite makes the MCS self‐powered and heat resistant, and the use of FeCoV makes the MCS highly flexible. The in‐situ coating and poling‐free methods endow the polylactide/VB2 composite and FeCoV good interfacial coupling. As a result, the MCS possesses good linearity over 0.999 and high sensitivity of 0.64 mV/A to the external current, even at a high temperature of 120 °C. Besides, the MCS presents high durability after 200 000 cycles. The MCS with mini size, self‐powering, heat resistance, high flexibility and durability has great potential in safety monitoring of electronic devices fields. Abstract : A novel magnetoelectric current sensor (MCS) based on polylactide/VB2 composites and FeCoV is prepared using in‐situ coating and poling‐free methods, which endow good interfacial coupling between the piezoelectric and magnetostrictive layers. Benefiting from the non‐ferroelectric PLLA/VB2 composites and flexible FeCoV, the MCS presents high flexibility, high sensitivity, and high heat resistance.