A broad-band polarization-insensitive absorber with a wide angle range metamaterial for thermo-photovoltaic conversion

被引：12

作者：

Bendelala, Fathi ^{[1
]}

Cheknane, Ali ^{[1
]}

Hilal, Hikmat S. ^{[2
]}

机构：

[1] Univ Amar Telidji Laghouat, Lab Semicond & Mat Fonct, Bd Martyrs BP37G, Laghouat 03000, Algeria

[2] An Najah Natl Univ, Chem Dept, SSERL, Nablus, Palestine

来源：

OPTICAL AND QUANTUM ELECTRONICS | 2018年 / 50卷 / 01期

关键词：

Thermo-photovoltaic; Absorption; Polarization-insensitive; Metamaterials; NEGATIVE REFRACTIVE-INDEX; GRATING STRUCTURE; PERFECT ABSORBER; WAVE; ABSORPTION; VERIFICATION; MODES; LAYER;

D O I：

10.1007/s11082-017-1273-3

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Anew absorber design using metamaterials for thermo photovoltaic applications is simulated here. Conventional absorbents normally have narrow band-widths and/or sensitive-polarization. Alternatively, the present study shows the possibility to find an infrared absorber structure with optimal characteristics involving a metal-dielectric. A combination of two resonators, circular cavity in a square metallic patch, laid on a dielectric substrate is proposed here. With this design, the results show that wide-band absorption can be achieved. The absorption bandwidth can be widened from 57.2 to 95.4 THz, with absorption efficiency higher than 90%. This structure design is polarization-insensitive to incident electromagnetic wave angles. These new features make the new absorber potentially useful in thermo-photovoltaic conversion applications.

引用

页数：10

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