Polarization-insensitive broadband absorption enhancement with few-layer MoS2 film

ABSTRACTCurrently, the performances of thin film solar cells are limited by poor light absorption and carrier collection. In this research, large, broadband, and polarization-insensitive light absorption enhancement was realized via incorporation of different periodic nanopetterns. By studying the enhancement effect brought by different materials, dimensions, coverage, and dielectric environments of the metal nanopatterns, we analyzed the absorption enhancement mechanisms as well as optimization criteria for our designs. A test for totaling the absorption over the solar spectrum shows an up to ∼30% broadband absorption enhancement when comparing to conventional thin film cells.

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A thermally stable and polarization insensitive square-shaped water metamaterial with ultra-broadband absorption

Journal of Materials Research and Technology ◽

10.1016/j.jmrt.2021.05.031 ◽

2021 ◽

Author(s):

Yadgar I. Abdulkarim ◽

Halgurd N. Awl ◽

Fatih Ozkan Alkurt ◽

Fahmi F. Muhammadsharif ◽

Salah Raza Saeed ◽

...

Keyword(s):

Thermally Stable ◽

Broadband Absorption ◽

Polarization Insensitive

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Broadband absorption enhancement in amorphous Si solar cells using metal gratings and surface texturing

10.1117/12.2253326 ◽

2017 ◽

Cited By ~ 1

Author(s):

Sara Magdi ◽

Mohamed A. Swillam

Keyword(s):

Solar Cells ◽

Surface Texturing ◽

Absorption Enhancement ◽

Broadband Absorption ◽

Si Solar Cells ◽

Amorphous Si ◽

Metal Gratings

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Broadband absorption enhancement in periodic structure plasmonic solar cell

Optical and Quantum Electronics ◽

10.1007/s11082-015-0127-0 ◽

2015 ◽

Vol 47 (6) ◽

pp. 1487-1494 ◽

Cited By ~ 13

Author(s):

Muhammad H. Muhammad ◽

Mohamed Farhat O. Hameed ◽

S. S. A. Obayya

Keyword(s):

Solar Cell ◽

Periodic Structure ◽

Absorption Enhancement ◽

Broadband Absorption

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Multiband and Broadband Absorption Enhancement of Monolayer Graphene at Optical Frequencies from Multiple Magnetic Dipole Resonances in Metamaterials

Nanoscale Research Letters ◽

10.1186/s11671-018-2569-3 ◽

2018 ◽

Vol 13 (1) ◽

Cited By ~ 18

Author(s):

Bo Liu ◽

Chaojun Tang ◽

Jing Chen ◽

Ningyan Xie ◽

Huang Tang ◽

...

Keyword(s):

Magnetic Dipole ◽

Absorption Enhancement ◽

Monolayer Graphene ◽

Broadband Absorption ◽

Magnetic Dipole Resonances

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Polarization-Insensitive Dielectric Metamaterials Absorber for Near-Unity UV-Light Trapping in Monolayer Graphene

10.21203/rs.3.rs-117470/v1 ◽

2020 ◽

Author(s):

Yinong Xie ◽

Xueying Liu ◽

Yijun Cai ◽

Jinfeng Zhu

Keyword(s):

Magnetic Resonance ◽

High Performance ◽

Uv Light ◽

Light Trapping ◽

Normal Incidence ◽

Resonant Absorption ◽

Base Layer ◽

Absorption Enhancement ◽

Monolayer Graphene ◽

Polarization Insensitive

Abstract With the aim of improving UV light trapping capability in monolayer graphene, a metamaterials absorber is proposed, which exhibits the polarization-insensitive feature due to the geometrical symmetry. Through the functional combination of magnetic resonance and UV mirror, the absorption of unpolarized UV light in monolayer graphene can reach 99.5% under normal incidence. The absorption enhancement is induced by the magnetic resonance mode between the dielectric silica nanomesh and the calcium fluoride base layer. The effects of geometric parameters on the absorption spectra are systematically investigated. By optimizing the metamaterials design, two distinct resonant absorption peaks can be excited simultaneously for monolayer graphene. Our work paves the way for applications on high-performance UV metamaterials devices by using two-dimensional materials.

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