First principle study of multilayered graphene/MoS2 heterostructures for photodetectors

被引：10

作者：

Mustafa, Hina ^{[1
]}

Irfan, Muhammad ^{[2
,3
]}

Sattar, Abdul ^{[1
]}

Amjad, Raja Junaid ^{[1
]}

Latif, Hamid ^{[4
]}

Usman, Arslan ^{[1
]}

Ahmad, M. Ashfaq ^{[1
]}

Qin, Shengyong ^{[2
,3
]}

机构：

[1] COMSATS Univ Islamabad, Dept Phys, Lahore Campus,Def Rd, Lahore 54000, Pakistan

[2] Univ Sci & Technol China, Int Ctr Quantum Design Funct Mat ICQD, Hefei 230026, Peoples R China

[3] Univ Sci & Technol China, Dept Phys, CAS Key Lab Strongly Coupled Quantum Matter Phys, Hefei 230026, Peoples R China

[4] Univ Lahore, Dept Phys, Forman Christin Coll, Lahore 54000, Pakistan

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2023年 / 289卷

关键词：

Photodetectors; van der Waals heterostructures; Two-dimension materials; Direct bandgap; Graphene; Molybdenum disulfide; Density functional theory; DER-WAALS HETEROSTRUCTURES; ABSORPTION;

D O I：

10.1016/j.mseb.2022.116205

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Graphene/MoS2 based heterostructures are one of the most promising candidates for future electronic and optoelectronic devices due to their unique electronic and optical properties. Here, we systematically constructed atomically thin graphene/MoS2, graphene/MoS2/graphene, and graphene/MoS2/graphene/MoS2/graphene heterostructures and performed comprehensive Density Functional Theory calculations to explore their electronic and optical properties, where GGA and HSE06 functionals were employed to explain electron transfer mechanism. Our results revealed the band gap of multilayered MoS2/graphene narrows at K point in Brillouin zone, and can be tuned for up to 36.3 meV. Furthermore, the absorption properties of those heterostructures are the exceptional from visible to ultraviolet region, making the multilayered graphene/MoS2 based heterostructures ideal candidate for photodetectors and optoelectronic applications.

引用

页数：7

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