A "belfry-typed" narrow-band tunable perfect absorber based on graphene and the application potential research

doi:10.1016/j.diamond.2022.108973

IR > 理学院

	A "belfry-typed" narrow-band tunable perfect absorber based on graphene and the application potential research
	Shangguan, Qianyi 1; Chen, Hao 2; Yang, Hua3 ; Liang, Shiri 1; Zhang, Yuanjian 1; Cheng, Shubo 1; Yang, Wenxing 1; Yi, Zao 2; Luo, Yao 2; Wu, Pinghui 4
	2022-05
发表期刊	Diamond and Related Materials
ISSN	0925-9635
卷号	125
摘要	In this work, the overall structure of the proposed "belfry-typed" absorber sensor is composed of four layers, from bottom to top are Si substrate, Au layer, SiO2 dielectric layer and the top "belfry-typed" graphene layer, respectively. Among them, the design of the "bell tower" pattern is inspired by the common bell tower building in daily life. Compared with the previous absorber based on frequency superposition method, the patterned graphene structure greatly simplifies the actual processing steps. By using FDTD to simulation, it is found that the structure has two perfect resonance absorption modes with absorption rates of 99.92% and 99.88% at 7578 nm and 8635 nm. Considering that the special surface plasmon tunability of graphene, the two-mode regulation can be achieved by controlling Fermi energy, relaxation times and structural geometry parameters. Moreover, the refractive index sensitivity of the device was discussed. The three basic parameters evaluating the performance of sensor are 1477.5 nm/RIU of sensitivity, 25.47 of FOM and 123.4 of quality factor. Finally, the specific circumstance of the absorber applied in actual life such as in aqueous solution, 10%, 20%, 25%, 60% glucose solution and 30%, 50% sugar solution was simulated and discussed. These results suggest that the proposed absorber has high refractive index sensitivity and high response speed, with which the absorber has high application value in photoelectric detection, switching and imaging. © 2022
关键词	Bells Refractive index Silica Surface plasmons Au layers Bell towers Narrow bands Perfect absorber Potential researches Refractive index sensitivity Sensing detection Si substrates Tunables "belfry-typed"
DOI	10.1016/j.diamond.2022.108973
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000790971100001
出版者	Elsevier Ltd
EI入藏号	20221311836472
EI主题词	Graphene
EI分类号	741.1 Light/Optics ; 752.1 Acoustic Devices ; 761 Nanotechnology ; 804 Chemical Products Generally ; 932.3 Plasma Physics
来源库	WOS
引用统计	被引频次：23[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/157904
专题	理学院
通讯作者	Cheng, Shubo; Yang, Wenxing; Yi, Zao
作者单位	1.Yangtze Univ, Sch Phys & Optoelect Engn, Jingzhou 434023, Hubei, Peoples R China; 2.Southwest Univ Sci & Technol, Joint Lab Extreme Condit Matter Properties, Mianyang 621010, Peoples R China; 3.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 4.Quanzhou Normal Univ, Coll Phys & Informat Engn, Quanzhou 362000, Peoples R China
推荐引用方式 GB/T 7714	Shangguan, Qianyi,Chen, Hao,Yang, Hua,et al. A "belfry-typed" narrow-band tunable perfect absorber based on graphene and the application potential research[J]. Diamond and Related Materials,2022,125.
APA	Shangguan, Qianyi.,Chen, Hao.,Yang, Hua.,Liang, Shiri.,Zhang, Yuanjian.,...&Wu, Pinghui.(2022).A "belfry-typed" narrow-band tunable perfect absorber based on graphene and the application potential research.Diamond and Related Materials,125.
MLA	Shangguan, Qianyi,et al."A "belfry-typed" narrow-band tunable perfect absorber based on graphene and the application potential research".Diamond and Related Materials 125(2022).