Optimization of gold square-shaped nanopillars arrays for high-efficiency optronics

M’Bouana, Noé Landry Privace; Min-Dianey, Kossi Aniya Amedome; Kongnine, Damgou Mani; Rajagopalan, Pandey; Qadir, Akeel; Min-Dianey, Kodjo A.; Choi, Jeong Ryeol; Pham, Phuong V.

doi:10.1016/j.optcom.2022.128073

Cited by 2 publications

(2 citation statements)

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“…Converting light into electrical signals is technically performed by using optoelectronic systems—vital components for capturing and envisaging information in optics. Optical sensing systems typically detect photons, which hold a key role in actual applications, e.g., industry, agriculture, military, or health, [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ]. Considerable studies have grown around the theme of several semiconductors, e.g., Ge, GaAs, or SiGe applied for optical sensing systems [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Integrated Graphene Heterostructures in Optical Sensing

et al. 2023

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Graphene—an outstanding low-dimensional material—exhibited many physics behaviors that are unknown over the past two decades, e.g., exceptional matter–light interaction, large light absorption band, and high charge carrier mobility, which can be adjusted on arbitrary surfaces. The deposition approaches of graphene on silicon to form the heterostructure Schottky junctions was studied, unveiling new roadmaps to detect the light at wider-ranged absorption spectrums, e.g., far-infrared via excited photoemission. In addition, heterojunction-assisted optical sensing systems enable the active carriers’ lifetime and, thereby, accelerate the separation speed and transport, and then they pave new strategies to tune high-performance optoelectronics. In this mini-review, an overview is considered concerning recent advancements in graphene heterostructure devices and their optical sensing ability in multiple applications (ultrafast optical sensing system, plasmonic system, optical waveguide system, optical spectrometer, or optical synaptic system) is discussed, in which the prominent studies for the improvement of performance and stability, based on the integrated graphene heterostructures, have been reported and are also addressed again. Moreover, the pros and cons of graphene heterostructures are revealed along with the syntheses and nanofabrication sequences in optoelectronics. Thereby, this gives a variety of promising solutions beyond the ones presently used. Eventually, the development roadmap of futuristic modern optoelectronic systems is predicted.

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Section: Introductionmentioning

confidence: 99%

Integrated Graphene Heterostructures in Optical Sensing

et al. 2023

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“…In order to encompass a wider range of responsive wavelengths, many approaches have been proposed. Some of these include porous glass [17], biomimetic moth-eye structures [18], randomly arranged pyramid structures [19], hemisphere pits [20], and gold square-shaped nanopillar arrays [21]. These methods enable the manipulation of light waves through gradient refractive indices, multiple rebounds, or plasmonic resonances, resulting in broadband, omnidirectional antireflection effects.…”

Section: Introductionmentioning

confidence: 99%

Suppressing Optical Losses in Solar Cells via Multifunctional and Large-Scale Geometric Arrays

Shen,

Jiang,

Wang

et al. 2023

Nanomaterials

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The occurrence of optical loss on the surface of solar cells is inevitable due to the difference in the refractive index between air and glass, as well as the insufficient absorption of the active layer. To address this challenge, micron-sized geometry arrays, such as hemispheres and hemisphere pits, are prepared on quartz glass through the advanced indirect patterning technology of UV-LIGA. These geometric arrays exhibit multiple mechanisms for controlling light waves, including multiple rebounds, diffraction scattering, and total internal reflection. These synergistic effects suppress optical losses at the device’s surface and prolong the photon propagation path in the active layer. After being patterned with this structure, the average transmittance and haze of the quartz glass reach 93.91% and 75%, respectively. Compared to their flat counterpart, the decorated monocrystalline silicon solar cells demonstrated an apparent improvement in photocurrent and produced a 7.2% enhancement in power conversion efficiency.

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Optimization of gold square-shaped nanopillars arrays for high-efficiency optronics

Cited by 2 publications

References 57 publications

Integrated Graphene Heterostructures in Optical Sensing

Integrated Graphene Heterostructures in Optical Sensing

Suppressing Optical Losses in Solar Cells via Multifunctional and Large-Scale Geometric Arrays

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