Surface plasmon enhancement in different spatial distributions of nanowires and two-dimensional materials

Ji, Chunming1,2; Jia, Hao3,4,5; Zhou, Chen1; Wang, Quan2,6; Xue, Wei1

2022-03-01

10.1039/d1cp05982c

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   影响因子和分区

1463-9076

1463-9084

Surface plasmon (SP) nanostructures have been widely researched to improve the low light absorption of two-dimensional transition metal dichalcogenides (TMDCs). However, the impact of their different coupling forms, which is essential for the optimization of nanostructures, has been rarely investigated. Here, we construct two different spatially distributed composite structures of Ag nanowires (NWs) and monolayer (1L) molybdenum disulfide (MoS2). When the Ag NW was buried under 1L MoS2, the formed tiny optical cavity can further promote the light utilization of 1L MoS2, so that the spectral enhancement by SP was stronger than that when the Ag NW was placed on the top of 1L MoS2. In addition, the photoresponsivity and light response speed of the phototransistor based on the composite structure with Ag NWs buried underneath were improved by similar to 5-fold and similar to 1000-fold, respectively, compared to those of the pristine 1L MoS2 phototransistor. This research provides a reference for the optimization of SP nanostructures to enhance the optoelectronic properties of two-dimensional materials.

SCI ; EI

英语

其他

2020 Science and Technology Boosting Economy Project of National Key Research and Development Program of China[SQ2020YFF0401270] ; Wenzhou Science & Technology Program[ZG2021025]

Chemistry ; Physics

Chemistry, Physical ; Physics, Atomic, Molecular & Chemical

WOS:000772122500001

ROYAL SOC CHEMISTRY

20221611964594

Layered semiconductors ; Light absorption ; Molybdenum compounds ; Nanowires ; Silver ; Spatial distribution ; Structure (composition) ; Surface plasmons

Surveying:405.3 ; Precious Metals:547.1 ; Semiconducting Materials:712.1 ; Light/Optics:741.1 ; Nanotechnology:761 ; Engineering Graphics:902.1 ; Mathematics:921 ; Plasma Physics:932.3 ; Solid State Physics:933 ; Materials Science:951

CHEMISTRY

Web of Science

1.Wenzhou Univ, Inst Laser & Optaelect Intelligent Mfg, Wenzhou 325035, Peoples R China
2.Jiangsu Univ, Zhenjiang Key Lab Adv Sensing Mat & Devices, Sch Mech Engn, Zhenjiang 212013, Jiangsu, Peoples R China
3.Southern Univ Sci & Technol, Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
4.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
5.Southern Univ Sci & Technol, Guangdong Prov Key Lab Quantum Sci & Engn, Shenzhen 518055, Peoples R China
6.Chinese Acad Sci, State Key Lab Transducer Technol, Shanghai 200050, Peoples R China

Ji, Chunming,Jia, Hao,Zhou, Chen,et al. Surface plasmon enhancement in different spatial distributions of nanowires and two-dimensional materials[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2022,24:8296-8302.

Ji, Chunming,Jia, Hao,Zhou, Chen,Wang, Quan,&Xue, Wei.(2022).Surface plasmon enhancement in different spatial distributions of nanowires and two-dimensional materials.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,24,8296-8302.

Ji, Chunming,et al."Surface plasmon enhancement in different spatial distributions of nanowires and two-dimensional materials".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 24(2022):8296-8302.