DataVXSmallPaper
journal article·2022-05Open access

Flexoelectric Domain Walls Originated from Structural Phase Transition in Epitaxial BiVO4 Films

Pao‐Wen Shao, Heng‐Jui Liu, Yuanwei Sun, Mei Wu, Ren‐Ci Peng, Meng Wang, Fei Xue, Xiaoxing Cheng, Lei Su, Peng Gao, Pu Yu, Long‐Qing Chen, Xiaoqing Pan, Yachin Ivry, Yi‐Chun Chen, Ying‐Hao Chu

Small· Volume 18· Issue 19
Publisher pageOpen full text
Source abstract

Abstract

Abstract Polar domain walls in centrosymmetric ferroelastics induce inhomogeneity that is the origin of advantageous multifunctionality. In particular, polar domain walls promote charge‐carrier separation and hence are promising for energy conversion applications that overcome the hurdles of the rate‐limiting step in the traditional photoelectrochemical water splitting processes. Yet, while macroscopic studies investigate the materials at the device scale, the origin of this phenomenon in general and the emergence of polar domain walls during the structural phase transition in particular has remained elusive, encumbering the development of this attractive system. Here, it is demonstrated that twin domain walls arise in centrosymmetric BiVO4 films and they exhibit localized piezoelectricity. It is also shown that during the structural phase transition from the tetragonal to monoclinic, the symmetry reduction is accompanied by an emergence of strain gradient, giving rise to flexoelectric effect and the polar domain walls. These results not only expose the emergence of polar domain walls at centrosymmetric systems by means of direct observation, but they also expand the realm of potential application of ferroelastics, especially in photoelectrochemistry and local piezoelectricity.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Multiferroics and related materials · Ferroelectric and Piezoelectric Materials · Acoustic Wave Resonator Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Materials Science and Engineering National Yang Ming Chiao Tung University Hsinchu 30010 Taiwan

Department of Materials Science and Engineering National Chung Hsing University Taichung 40227 Taiwan

International Center for Quantum Materials School of Physics Peking University Beijing China

Electron Microscopy Laboratory School of Physics Peking University Beijing China

School of Advanced Materials and Nanotechnology Xidian University Xi'an 710126 China

Department of Physics Tsinghua University Beijing China

Department of Materials Science and Engineering The Pennsylvania State University University Park PA 16082 USA

Department of Materials Science and Engineering University of California Irvine CA 92697 USA

Department of Physics and Astronomy University of California at Irvine Irvine CA 92697 USA

Irvine Materials Research Institute University of California at Irvine Irvine CA 92697 USA

Department of Materials Science and Engineering Technion Israel Institute of Technology Haifa 3200003 Israel

Solid State Institute Technion Israel Institute of Technology Haifa 3200003 Israel

Department of Physics National Cheng Kung University Tainan Taiwan

Department of Materials Science and Engineering National Tsing Hua University Hsinchu 30013 Taiwan

Funding

Ministry of Science and Technology, Taiwan · National Natural Science Foundation of China · Natural Science Foundation of Shanxi Province

References (39)

Show source-provided references
1. 10.1021/cm010339010.1021/cm0103390 ↗
2. 10.1039/C8TC02260G10.1039/C8TC02260G ↗
3. 10.1016/j.isci.2019.08.03710.1016/j.isci.2019.08.037 ↗
4. 10.1021/jp056367d10.1021/jp056367d ↗
5. 10.1038/s41467-020-18644-w10.1038/s41467-020-18644-w ↗
6. 10.1038/s42254-020-0235-z10.1038/s42254-020-0235-z ↗
7. 10.1038/s41467-017-01334-510.1038/s41467-017-01334-5 ↗
8. 10.1038/nnano.2009.45110.1038/nnano.2009.451 ↗
9. 10.1080/0141159090293613810.1080/01411590902936138 ↗
10. Nye J. F. · 1985
11. 10.1063/5.003288110.1063/5.0032881 ↗
12. 10.1021/cm501087j10.1021/cm501087j ↗
13. Prince E. · 2004
14. 10.1088/2053-1591/3/4/04502110.1088/2053-1591/3/4/045021 ↗
15. 10.1088/0022-3719/16/26/00810.1088/0022-3719/16/26/008 ↗
16. 10.1063/5.001150710.1063/5.0011507 ↗
17. 10.1016/j.matlet.2021.12951910.1016/j.matlet.2021.129519 ↗
18. 10.1016/0025-5408(72)90227-910.1016/0025-5408(72)90227-9 ↗
19. 10.1088/0953-8984/6/2/01010.1088/0953-8984/6/2/010 ↗
20. 10.1063/1.500599410.1063/1.5005994 ↗
21. 10.1088/0957-4484/21/6/06570210.1088/0957-4484/21/6/065702 ↗
22. 10.1177/1045389X0303523510.1177/1045389X03035235 ↗
23. 10.1103/PhysRevLett.99.16760110.1103/PhysRevLett.99.167601 ↗
24. 10.1002/adma.20190296310.1002/adma.201902963 ↗
25. 10.1103/PhysRevB.94.02411410.1103/PhysRevB.94.024114 ↗
26. 10.1080/0141159790821319810.1080/01411597908213198 ↗
27. 10.1063/1.36726010.1063/1.367260 ↗
28. 10.1103/PhysRevB.81.14412510.1103/PhysRevB.81.144125 ↗
29. 10.1016/S1359-6454(96)00180-210.1016/S1359-6454(96)00180-2 ↗
30. 10.1016/j.actamat.2013.05.01510.1016/j.actamat.2013.05.015 ↗
31. 10.1016/j.actamat.2020.01.05110.1016/j.actamat.2020.01.051 ↗
32. 10.1016/j.joule.2019.10.00810.1016/j.joule.2019.10.008 ↗
33. 10.1021/acsnano.1c0656910.1021/acsnano.1c06569 ↗
34. 10.1021/jacs.9b0905610.1021/jacs.9b09056 ↗
35. 10.1038/s41467-021-27299-010.1038/s41467-021-27299-0 ↗
36. 10.1002/adfm.20200959410.1002/adfm.202009594 ↗
37. 10.1016/j.cjph.2019.05.03010.1016/j.cjph.2019.05.030 ↗
38. 10.1016/S1359-6454(01)00118-510.1016/S1359-6454(01)00118-5 ↗
39. 10.1016/S0010-4655(97)00115-X10.1016/S0010-4655(97)00115-X ↗