Flexoelectric Effect of Ferroelectric Materials and Its Applications
The flexoelectric effect, which exists in all dielectrics, is an electromechanical effect that arises due to the coupling of strain gradients (or electric field gradients) with electric polarization (or mechanical stress). Numerous experimental studies have demonstrated that ferroelectric materials...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-03-01
|
| Series: | Actuators |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-0825/12/3/114 |
| _version_ | 1797614132458946560 |
|---|---|
| author | Dongxia Tian Dae-Yong Jeong Zhenxiao Fu Baojin Chu |
| author_facet | Dongxia Tian Dae-Yong Jeong Zhenxiao Fu Baojin Chu |
| author_sort | Dongxia Tian |
| collection | DOAJ |
| description | The flexoelectric effect, which exists in all dielectrics, is an electromechanical effect that arises due to the coupling of strain gradients (or electric field gradients) with electric polarization (or mechanical stress). Numerous experimental studies have demonstrated that ferroelectric materials possess a larger flexoelectric coefficient than other dielectric materials; thus, the flexoelectric response becomes significant. In this review, we will first summarize the measurement methods and magnitudes of the flexoelectric coefficients of ferroelectric materials. Theoretical studies of the flexoelectric coefficients of ferroelectric materials will be addressed in this review. The scaling effect, where the flexoelectric effect dramatically increases when reducing the material dimension, will also be discussed. Because of their large electromechanical response and scaling effect, ferroelectric materials offer vast potential for the application of the flexoelectric effect in various physical phenomena, including sensors, actuators, and transducers. Finally, this review will briefly discuss some perspectives on the flexoelectric effect and address some pressing questions that need to be considered to further develop this phenomenon. |
| first_indexed | 2024-03-11T07:05:29Z |
| format | Article |
| id | doaj.art-58d4630c73354c82883594be4c847a13 |
| institution | Directory Open Access Journal |
| issn | 2076-0825 |
| language | English |
| last_indexed | 2024-03-11T07:05:29Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Actuators |
| spelling | doaj.art-58d4630c73354c82883594be4c847a132023-11-17T08:56:51ZengMDPI AGActuators2076-08252023-03-0112311410.3390/act12030114Flexoelectric Effect of Ferroelectric Materials and Its ApplicationsDongxia Tian0Dae-Yong Jeong1Zhenxiao Fu2Baojin Chu3Institute of Advanced Materials, Hubei Normal University, Huangshi 435002, ChinaDepartment of Materials Science and Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of KoreaGuangdong Fenghua Advanced Technology Holding Co., Ltd., 18th Fenghua Road, Zhaoqing 526020, ChinaCAS Key Laboratory of Materials for Energy Conversion and Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, ChinaThe flexoelectric effect, which exists in all dielectrics, is an electromechanical effect that arises due to the coupling of strain gradients (or electric field gradients) with electric polarization (or mechanical stress). Numerous experimental studies have demonstrated that ferroelectric materials possess a larger flexoelectric coefficient than other dielectric materials; thus, the flexoelectric response becomes significant. In this review, we will first summarize the measurement methods and magnitudes of the flexoelectric coefficients of ferroelectric materials. Theoretical studies of the flexoelectric coefficients of ferroelectric materials will be addressed in this review. The scaling effect, where the flexoelectric effect dramatically increases when reducing the material dimension, will also be discussed. Because of their large electromechanical response and scaling effect, ferroelectric materials offer vast potential for the application of the flexoelectric effect in various physical phenomena, including sensors, actuators, and transducers. Finally, this review will briefly discuss some perspectives on the flexoelectric effect and address some pressing questions that need to be considered to further develop this phenomenon.https://www.mdpi.com/2076-0825/12/3/114flexoelectricpiezoelectric-like responseelectromechanical couplingferroelectric materials |
| spellingShingle | Dongxia Tian Dae-Yong Jeong Zhenxiao Fu Baojin Chu Flexoelectric Effect of Ferroelectric Materials and Its Applications Actuators flexoelectric piezoelectric-like response electromechanical coupling ferroelectric materials |
| title | Flexoelectric Effect of Ferroelectric Materials and Its Applications |
| title_full | Flexoelectric Effect of Ferroelectric Materials and Its Applications |
| title_fullStr | Flexoelectric Effect of Ferroelectric Materials and Its Applications |
| title_full_unstemmed | Flexoelectric Effect of Ferroelectric Materials and Its Applications |
| title_short | Flexoelectric Effect of Ferroelectric Materials and Its Applications |
| title_sort | flexoelectric effect of ferroelectric materials and its applications |
| topic | flexoelectric piezoelectric-like response electromechanical coupling ferroelectric materials |
| url | https://www.mdpi.com/2076-0825/12/3/114 |
| work_keys_str_mv | AT dongxiatian flexoelectriceffectofferroelectricmaterialsanditsapplications AT daeyongjeong flexoelectriceffectofferroelectricmaterialsanditsapplications AT zhenxiaofu flexoelectriceffectofferroelectricmaterialsanditsapplications AT baojinchu flexoelectriceffectofferroelectricmaterialsanditsapplications |