Photovoltaic enhancement of Si micro- and nanostructure solar cells via ultrafast laser texturing

Mutlak, Falah A.-H.

doi:10.3906/fiz-1302-2

Cited by 28 publications

(4 citation statements)

References 15 publications

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“…With regard to all heterojunctions, response peaks were found at 450 nm, 600 nm, and 850 nm. The 450 nm peak may be attributed to Au:Pb core-shell's absorption edge, the 600 nm peak to the silicon substrate, and the 850 nm peak to the silicon substrate [42]. With the 250 mT magnetic field strength, the photodetector's maximum responsivity was 0.551 A/W at 650 nm.…”

Section: Resultsmentioning

confidence: 99%

Two-Step Laser Ablation for the Synthesis of Au:Pb Core/Shell NPs for a High-Performance Silicon-Based Heterojunction Photodetector

Abdul Hameed,

Mutlak

2024

IJP

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In this work, colloidal gold:lead (Au:Pb) core/shell nanoparticles (NPs) were synthesized in liquid at 532 nm using the laser ablation method. An investigation of the external magnetic field during the laser ablation process affected the properties of the Au:Pb NP core and shell. The magnetic field enhances the core shell’s crystallinity. The optical band gap energy increased from 2.067 to 2.086 eV in the presence of the magnetic field. It also led to an increase in the concentration and a decrease in the size of nanoparticles, which led to increased absorbance. A magnetic field strength of 250 mT resulted in a higher removal efficiency. The external magnetic field significantly reduced NP agglomeration and aggregation. We created and characterized an Au:Pb/porous silicon (PS) heterojunction photodetector. The magnetic field greatly enhanced its properties. The responsively (Rλ) of the photodetector increased from 0.093 to 0.551 A/W at λ = 650 nm by increasing the magnetic field. On the other hand, the final Au:Pb/PS material had the best photocurrent stability, demonstrating that adding Au:Pb NPs can make PS's opto-electrical properties more stable. In the end, the Au:Pb NPs/PS heterojunction photodetector results showed that the photodetector parameters got much better when a magnetic field was present. By altering the preparation conditions, we can produce high-performance core/shell photovoltaic devices.

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Section: Resultsmentioning

confidence: 99%

Two-Step Laser Ablation for the Synthesis of Au:Pb Core/Shell NPs for a High-Performance Silicon-Based Heterojunction Photodetector

Abdul Hameed,

Mutlak

2024

IJP

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“…In experimental observation, MULTAK stated that the hillocks created by laser pulse femtosecond are more likely to be cylindrical, thus strengthening the light trap in the cell. The experiment also revealed a 10.8% variation in JSC, 12.9% in VOC, 8.8% in FF, and 25% in general quality following texture [18]. The possibility to shape various versions of a micro-sized structure on the surface are another significant benefit of the physical texture process over the wet chemical process.…”

Section: Physical Texturization Processing Techniquesmentioning

confidence: 87%

Review on Surface Texturing Method for Solar Cell Efficiency Enhancement

HUSSEİN

ISMAEL

2022

Journal of Physical Chemistry and Functional Materials

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Sun oriented cell are also known as Photoelectric (PE) cells, which labor to transform sunlight specifically into electricity, Photoelectric cells are attached electric powered and conveniently arranged within a wide outline known as a sun based board. The efficiency of the sun powered cell is turns on the number of consume photons which are absorbed in the consumer sheet of sun powered cell. However, the low absorption rate of the absorber material and light reflection in the surface of material and the material interfaces of the glass absorbers will reduce the conversion of solar energy. The effect of the energy conversion can be upgrade by modifying the surface morphology of the solar cell. In this article review of Exterior by different Texturing Method to increase efficiency enhancement, minimum waste energy of light of the sun and to get a maximum efficiency for the Sun Powered Cell Effective Upgrade has been investigated.

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“…In fact, different gas species will exhibit distinct variations between the SPR bands and the dielectric constant, which results in a variety of variations in the optical characteristics at various wavelengths. By doing this, the selectivity toward interfering gases can be improved, a function not possible with traditional electrical sensors [1][2][3][4][5][6][7]. Due to its resistance to oxidation and intriguing electrical, magnetic, optical, and physical properties, the noble metal au is a widely used substance, Because of its numerous and diversi ed compounds' distinctive qualities, which differ from those in their bulk form, it has new capabilities in numerous scienti c domains [8].…”

Section: Introductionmentioning

confidence: 99%

Optimized NO2 and H2S gas sensor based on Si nanostructure incorporated gold nanoparticles

Alber

Mutlak

2022

Preprint

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In this study the gold nanoparticle are investigated to find the optimum condition to manufacturing NO2 and H2S gas sensor. The laser ablation approach been extensively used in preparation prepare gold nanoparticles on a porous silicon substrate using n-type silicon wafers. Used a Nd-YAG laser with a (1064, 532) nm wavelength, numbers of shot 500 and energies (600, 800, and 1000) mJ. The morphological and optical of the Au nanoparticles are studied using scanning electron microscope (SEM), photoluminescence spectroscopy (PL), reflection spectra and study sensing properties. In AuNPs quantum confinement has an effect as seen by a slight shift in the high-energy side of the PL spectrum's peak. With longer wavelengths and lower energies, the crystal with the shorter wavelength 532 nm has a greater refractive index. We observe that it has the largest visible wavelength 591 nm and peaks that are displaced to higher wavelengths. The H2S and NO2 gas sensors sensitivity, recuperation time, and reaction time built since prepared samples were all affected by changes in operation temperature. For each of the gases tested, the highest sensitivity was 30% in 532 nm and 155% in1064nm at 800 mJ for H2S gas while NO2 gas was around 24% in 532 nm and 23% in 1064 nm at 800 mJ. The Au nanoparticles produced by laser ablation create excellent gas sensing and might be a viable solution for industrial gas sensing applications.

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Photovoltaic enhancement of Si micro- and nanostructure solar cells via ultrafast laser texturing

Cited by 28 publications

References 15 publications

Two-Step Laser Ablation for the Synthesis of Au:Pb Core/Shell NPs for a High-Performance Silicon-Based Heterojunction Photodetector

Two-Step Laser Ablation for the Synthesis of Au:Pb Core/Shell NPs for a High-Performance Silicon-Based Heterojunction Photodetector

Review on Surface Texturing Method for Solar Cell Efficiency Enhancement

Optimized NO2 and H2S gas sensor based on Si nanostructure incorporated gold nanoparticles

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