Broadband and perfect absorption in monolayer MoS2-based multilayered structure arranged in Kolakoski sequence

Zhao, Yining; Chen, Bojun; Da, Haixia

doi:10.1007/s00340-022-07920-w

Cited by 3 publications

(1 citation statement)

References 33 publications

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“…However, the proposed absorber remains competitive when it is seen from a different perspective. As a result, the proposed absorber is an excellent t for the MTM absorber that is based on incident angle stability [41]. Therefore, the suitable characteristic is helpful for solar energy harvesting, solar cells, and solar thermophotovoltaics, respectively.…”

Section: Incident Angle Stability With Opaquementioning

confidence: 97%

Cone-shaped resonator-based highly efficient broadband polarization- independent metamaterial absorber for solar energy harvesting

Kumar

Singh

Pandey

2022

Preprint

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We propose a highly efficient, low-cost metamaterial absorber of nickel (Ni) metal-based cone-shaped resonators with a silicon dioxide dielectric layer (SiO2). The proposed absorber exhibits an average absorption of 97% for the transverse magnetic (TM) and transverse electric (TE) modes over the visible region which is simulated by CST software. The nickel-metal impedance coincides with the impedance of free space and makes the proposed design an effective broadband absorber in the visible region. The average absorption with different incidence angles obtains over 90% and shows the polarization angles' independence. The average absorption spectra are also examined for the absorber with different noble metals. In addition, short-circuit current densities (Jsc) are calculated at different incidence angles for both modes under a global air mass of 1.5 (AM1.5). We have also plotted the J–V curve to obtain the values of the open-circuit voltage (Voc), Fill Factor, and conversion efficiency (η), whose values are 0.563V, 81.86%, and 11.68%, respectively. The proposed metamaterial absorber can be utilized to develop more reliable, highly efficient, cost-effective, and maximum-power extraction photovoltaic systems.

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Section: Incident Angle Stability With Opaquementioning

confidence: 97%

Cone-shaped resonator-based highly efficient broadband polarization- independent metamaterial absorber for solar energy harvesting

Kumar

Singh

Pandey

2022

Preprint

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Dielectric‐Based Metamaterials for Near‐Perfect Light Absorption

Wang,

Qin,

Duan

et al. 2024

Adv Funct Materials

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The emergence of metamaterials and their continued prosperity have built a powerful working platform for accurately manipulating the behavior of electromagnetic waves, providing sufficient possibility for the realization of metamaterial absorbers with outstanding performance. However, metamaterial absorbers composed of metallic materials typically possess many unfavorable factors, such as non‐adjustable absorption, easy oxidation, low‐melting, and expensive preparation costs. The selection of dielectric materials provides excellent alternatives due to their remarkable properties, thus dielectric‐based metamaterial absorbers (DBMAs) have attracted much attention. To promote breakthroughs in DBMAs and guide their future development, this work systematically and deeply reviews the recent research progress of DBMAs from four different but progressive aspects, including physical principles; classifications, material selections and tunable properties; preparation technologies; and functional applications. Five different types of theories and related physical mechanisms, such as Mie resonance, guided‐mode resonance, and Anapole resonance, are briefly outlined to explain DBMAs having near‐perfect absorption performance. Mainstream material selections, structure designs, and different types of tunable DBMAs are highlighted. Several widely utilized preparation methods for customizing DBMAs are given. Various practical applications of DBMAs in sensing, stealth technology, solar energy absorption, and electromagnetic interference suppression are reviewed. Finally, some key challenges and feasible solutions for DBMAs’ future development are provided.

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Reverse distribution of self-driven photocurrent response hotspots in layer-dependent MoS2 devices

Yuan,

Xin,

Huang

et al. 2024

Applied Physics Letters

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In van der Waals materials, the electronic property, including the bandgap as well as the charge carrier mobility and lifetime, significantly changes as its thickness shrinks to the monolayer limit. While such characteristic brings additional freedom and convenience in regard to device design and fabrication, it also raises uncertainty in terms of the semiconductor device functionality due to the competing roles of those factors in tuning the charge carrier transport. In this work, we perform scanning photocurrent microscopy experiments on different sets of MoS2 homojunctions under zero bias voltage and show the reverse photocurrent distribution among them. Specifically, in the combination of 1L–3L MoS2, the band offset is large and thus dominates the photocarrier separation. In the combination of 3L–7L MoS2, by contrast, the effect of band offset is negligible, and the mismatch in minority carrier diffusion length takes charge of the photoresponse. The authors hope that the findings presented here offer a perspective on the current transport and thus functionality realization in layered materials.

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Broadband and perfect absorption in monolayer MoS2-based multilayered structure arranged in Kolakoski sequence

Cited by 3 publications

References 33 publications

Cone-shaped resonator-based highly efficient broadband polarization- independent metamaterial absorber for solar energy harvesting

Cone-shaped resonator-based highly efficient broadband polarization- independent metamaterial absorber for solar energy harvesting

Dielectric‐Based Metamaterials for Near‐Perfect Light Absorption

Reverse distribution of self-driven photocurrent response hotspots in layer-dependent MoS2 devices

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