Electrostatically Tunable Near-Infrared Plasmonic Resonances in Solution-Processed Atomically Thin NbSe2

Zhao, Meng1; Li, Jing2; Sebek, Matej1; Yang, Le1; Liu, Yan Jun3; Bosman, Michel1,4; Wang, Qian1; Zheng, Xinting1; Lu, Jiong2; Teng, Jinghua1

2021-06-01

10.1002/adma.202101950

ADVANCED MATERIALS   影响因子和分区

0935-9648

1521-4095

In the broad spectral range, near-infrared (NIR) plasmonics find applications in telecommunication, energy harvesting, sensing, and more, all of which would benefit from an electrostatically controllable NIR plasmon source. However, it is difficult to control bulk NIR plasmonics directly with electrostatics because of the strong electric-field screening effect and high carrier concentration required to support NIR plasmons. Here, this constraint is overcome and the observation of NIR plasmonic resonances that can be modulated electrostatically over a range of approximate to 360 cm(-1) in few-layer NbSe2 gratings is reported, thanks to the enhanced electrostatics of atomically thin 2D materials and the high-quality film produced by a solution method. NbSe2 plasmons also render strong field confinement due to their atomic thickness and provide an extra degree of resonance frequency modulation from the layered structure. This study identifies metallic 2D materials as promising (easily produced and well-performing) candidates to extend electrostatically tunable plasmonics to the technologically important NIR range.

atomically thin metamaterials electrostatic modulation near-infrared plasmonics niobium diselenide transition metal dichalcogenides

SCI ; EI

英语

NI论文

其他

Agency for Science, Technology and Research (A*STAR)["152 700014","H19H6a0025"] ; A*STAR SERC Career Development Award[A1820g0088]

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

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

WOS:000666869500001

WILEY-V C H VERLAG GMBH

20212710584307

Carrier concentration ; Dissociation ; Electric fields ; Energy harvesting ; Niobium compounds ; Plasmonics ; Resonance ; Selenium compounds

Energy Conversion Issues:525.5 ; Electricity: Basic Concepts and Phenomena:701.1 ; Chemical Reactions:802.2 ; Mechanics:931.1

MATERIALS SCIENCE

Web of Science

1.Agcy Sci Technol & Res, Inst Mat Res & Engn, Innovis, Singapore 138634, Singapore
2.Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore
3.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
4.Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117575, Singapore

Zhao, Meng,Li, Jing,Sebek, Matej,et al. Electrostatically Tunable Near-Infrared Plasmonic Resonances in Solution-Processed Atomically Thin NbSe2[J]. ADVANCED MATERIALS,2021,33.

Zhao, Meng.,Li, Jing.,Sebek, Matej.,Yang, Le.,Liu, Yan Jun.,...&Teng, Jinghua.(2021).Electrostatically Tunable Near-Infrared Plasmonic Resonances in Solution-Processed Atomically Thin NbSe2.ADVANCED MATERIALS,33.

Zhao, Meng,et al."Electrostatically Tunable Near-Infrared Plasmonic Resonances in Solution-Processed Atomically Thin NbSe2".ADVANCED MATERIALS 33(2021).