Multiple electromechanical coupling in wrinkled monolayer MoS2

被引:0
|
作者
Liu, Junjie [1 ]
Liao, Wenhu [1 ]
He, Yan [2 ]
Dong, Jiansheng [1 ]
Ouyang, Gang [3 ]
机构
[1] Jishou Univ, Dept Phys, Jishou 416000, Hunan, Peoples R China
[2] Guangdong Univ Petrochem Technol, Coll Sci, Maoming 525000, Guangdong, Peoples R China
[3] Hunan Normal Univ, Key Lab Low Dimens Quantum Struct & Quantum Contro, Minist Educ, Changsha 410081, Peoples R China
来源
NEW JOURNAL OF PHYSICS | 2024年 / 26卷 / 11期
基金
中国国家自然科学基金;
关键词
2D transition metal dichalcogenides; wrinkle; energy funneling; piezoelectricity; flexoelectricity; ENERGY; PIEZOELECTRICITY; CONVERSION; TRIONS;
D O I
10.1088/1367-2630/ad8c75
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The electromechanical coupling of two-dimensional (2D) transition metal dichalcogenides (TMDs) is crucial for the design of highly efficient optoelectronic devices. However, achieving multiple electromechanical coupling effects in one 2D material remain a major challenge. Here, we investigate the coexistence of energy funneling, piezoelectricity, and flexoelectricity in wrinkled monolayer TMDs through the atomic-bond-relaxation approach. We find that the periodic undulation strain induced by wrinkles can lead to multiple electromechanical coupling properties. The synergistic interaction of energy funneling, piezoelectric, and flexoelectric effects can result in spatially isolated electron and hole transport, as well as the suppression of recombination during charge separation and transport processes. Our study provides a new route for the design of 2D material-based optoelectronic devices.
引用
收藏
页数:10
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