Self-Rolled-Up WSe₂ One-Dimensional/Two-Dimensional Homojunctions: Enabling High-Performance Self-Powered Polarization-Sensitive Photodetectors

Zhang, Baihui1; Ao, Zhikang1; Lan, Xiang1; Zhong, Jiang1; Zhang, Fen1; Zhang, Shunhui1; Yang, Ruofan1; Wang, Luyao1; Chen, Peng2; Wang, Guang3; Yang, Xiangdong4; Liu, Hang5; Cao, Jinhui6; Zhong, Mianzeng1; Li, Hongjian1; Zhang, Zhengwei1

2024-06-07

10.1021/acs.nanolett.4c01745

NANO LETTERS   影响因子和分区

1530-6984

1530-6992

Mixed-dimensional heterostructures integrate materials of diverse dimensions with unique electronic functionalities, providing a new platform for research in electron transport and optoelectronic detection. Here, we report a novel covalently bonded one-dimensional/two-dimensional (1D/2D) homojunction structure with robust junction contacts, which exhibits wide-spectrum (from the visible to near-infrared regions), self-driven photodetection, and polarization-sensitive photodetection capabilities. Benefiting from the ultralow dark current at zero bias voltage, the on/off ratio and detectivity of the device reach 1.5 x 10(3) and 3.24 x 10(9) Jones, respectively. Furthermore, the pronounced anisotropy of the WSe2 1D/2D homojunction is attributed to its low symmetry, enabling polarization-sensitive detection. In the absence of any external bias voltage, the device exhibits strong linear dichroism for wavelengths of 638 and 808 nm, with anisotropy ratios of 2.06 and 1.96, respectively. These results indicate that such mixed-dimensional structures can serve as attractive building blocks for novel optoelectronic detectors.

2D materials self-assembly mixed-dimensional self-powered photodetectors polarization-sensitive

SCI ; EI

英语

其他

Natural Science Foundation of Ningbo Municipality[52302204] ; National Natural Science Foundation of China[2022JJ20085] ; Hunan Provincial Natural Science Foundation of China[kq2202092] ; Changsha Natural Science Foundation[2023D01D03] ; Key Project of the Natural Science Program of Xinjiang Uygur Autonomous Region[2023J023] ; Ningbo Natural Science Foundation[1053320210118]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001242683100001

AMER CHEMICAL SOC

MATERIALS SCIENCE

Web of Science

1.Cent South Univ, Sch Phys, Hunan Key Lab Nanophoton & Devices, Changsha 410083, Peoples R China
2.Southern Univ Sci & Technol, Sch Microelect, Shenzhen 518055, Peoples R China
3.Natl Univ Def Technol, Coll Sci, Dept Phys, Changsha 410073, Peoples R China
4.Ningbo Univ Technol, Inst Micro Nano Mat & Devices, Ningbo 315211, Peoples R China
5.King Abdullah Univ Sci & Technol, Phys Sci & Engn Div, Thuwal 239556900, Saudi Arabia
6.Changsha Univ Sci & Technol, Coll Energy & Power Engn, Changsha 410114, Peoples R China

Zhang, Baihui,Ao, Zhikang,Lan, Xiang,et al. Self-Rolled-Up WSe₂ One-Dimensional/Two-Dimensional Homojunctions: Enabling High-Performance Self-Powered Polarization-Sensitive Photodetectors[J]. NANO LETTERS,2024,24(25).

Zhang, Baihui.,Ao, Zhikang.,Lan, Xiang.,Zhong, Jiang.,Zhang, Fen.,...&Zhang, Zhengwei.(2024).Self-Rolled-Up WSe₂ One-Dimensional/Two-Dimensional Homojunctions: Enabling High-Performance Self-Powered Polarization-Sensitive Photodetectors.NANO LETTERS,24(25).

Zhang, Baihui,et al."Self-Rolled-Up WSe₂ One-Dimensional/Two-Dimensional Homojunctions: Enabling High-Performance Self-Powered Polarization-Sensitive Photodetectors".NANO LETTERS 24.25(2024).