Tunable electronic and optical properties of h-BP/MoS2 van der Waals heterostructures toward optoelectronic applications

被引:1
|
作者
Wei, Dong [1 ]
Li, Yi [2 ]
Guo, Gaofu [1 ]
Ma, Yaqiang [1 ]
Tang, Yanan [2 ]
Feng, Zhen [3 ]
Dai, Xianqi [1 ]
机构
[1] Henan Normal Univ, Sch Phys, Xinxiang 453007, Henan, Peoples R China
[2] Zhengzhou Normal Univ, Sch Phys & Elect Engn, Zhengzhou 450044, Henan, Peoples R China
[3] Henan Inst Technol, Sch Mat Sci & Engn, Xinxiang 453000, Henan, Peoples R China
基金
中国国家自然科学基金;
关键词
Power conversion efficiency (PCE); van der Waals heterostructures (vdWHs); Band alignment; Excitonic solar cells; DESIGN; TRANSITION; SCHOTTKY; GRAPHENE; DEVICES; STRAIN; FIELD; SE;
D O I
10.1016/j.jpcs.2024.111869
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The integration of two-dimensional materials (2D) into van der Waals heterostructures (vdWHs) is widely recognized as an effective strategy for the development of multifunctional devices. This study aims to construct stable ultrathin 2D vdWHs using h-BP and MoS2 monolayers, and analyze the impact of strain on the electronic properties of h-BP/MoS2 vdWHs, with a specific focus on the mechanism of biaxial strain regulation. The h-BP/ MoS2 vdWHs demonstrate the type II band alignment and possess direct bandgap, which can be effectively controlled through appropriate application of biaxial strain. The power conversion efficiency (PCE) can reach 21.85 % achieved suggests that the material under consideration has potential as a suitable candidate for 2D excitonic solar cells. The observed decrease in effective mass for both electrons and holes implies an enhanced carrier mobility, thereby facilitating the utilization of h-BP/MoS2 vdWHs in the development of high-efficiency excitonic solar cells. These findings indicate that the h-BP/MoS2 vdWHs possess the capability to serve as a reconfigurable system in the construction of highly efficient solar cells.
引用
收藏
页数:9
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