Enhancement of the open-circuit voltage of the dye-sensitized solar cells using a modified ruthenium dye

Almalki, Abdulraheem S. A.; Shoair, A.F.; Al-Baradi, Ateyyah M.; Atta, A.A.; Algarni, Saud A.; Khalifa, Mohamed E.; Alfaifi, Sulaiman Y. M.

doi:10.1007/s00339-021-04324-z

Cited by 6 publications

(4 citation statements)

References 32 publications

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“…On the other hand, the open circuit voltage or output voltage was defined as the difference between the quasi-Fermi level of free electron of the TiO2 electrode and the redox couple potential of mediator, which mostly counts on the recombination rate of electron and adsorption mode of the prepared sensitizer (29,35). In this work, photovoltaic cells based on the unacidified extract of onion peels performed the better power conversion efficiency of 0.0535%, whereas the other exhibited efficiency of 0.0021%.…”

Section: Dssc Performancementioning

confidence: 99%

Aqueous Extract of Onion Peels as A Biowaste-Based Sensitizer for Photovoltaic Cells

ADU,

GELYAMAN

2023

Journal of the Turkish Chemical Society Section A: Chemistry

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In the present paper, two natural photosensitizers extracted from red onion peels have been experimentally studied to sensitize the photovoltaic cells. The two natural dyes were prepared overnight, soaking the red onion peel powder in distilled water without acidification (UW) and acidified water (AW). Dye characteristics were identified by UV-vis Spectrophotometer and FT-IR Spectrophotometer. The cell performance was assessed by calculating the produced voltage and current by multi-meter. Red onion peel dyes absorb visible light at a wavelength of 507 nm and promote electron transfer into the porous semiconductor surface. A higher power conversion efficiency (η=0.0535 %) was featured by an unacidified solvent with a short circuit current density (Jsc) of 0.96 mA.cm-2, an open circuit voltage (Voc) of 338 mV and a fill factor of 0.2576. This paper presents a fascinating preliminary study to develop renewable and sustainable energy sources using bulky biowaste.

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Section: Dssc Performancementioning

confidence: 99%

Aqueous Extract of Onion Peels as A Biowaste-Based Sensitizer for Photovoltaic Cells

ADU,

GELYAMAN

2023

Journal of the Turkish Chemical Society Section A: Chemistry

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“…Among many methods, water splitting is considered the efficient way to get a good amount of hydrogen fuel. [1][2][3] The nano materials are gining importance in many areas of research including water splitting for hydrogen fuel (photo-catalyst). [4][5][6] Among many materials, alumina is being used as a good catalyst but all the properties of alumina for water splitting are not explored fully.…”

Section: Introductionmentioning

confidence: 99%

“…There is a great demand for green fuel hydrogen due to climate issues. Among many methods, water splitting is considered the efficient way to get a good amount of hydrogen fuel [1–3] . The nano materials are gining importance in many areas of research including water splitting for hydrogen fuel (photo‐catalyst) [4–6] .…”

Section: Introductionmentioning

confidence: 99%

A COMPARISON OF HYDROGEN PRODUCTION BY WATER SPLITTING ON THE SURFACE OF α‐, δ‐ AND γ‐Al₂O₃

et al. 2022

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Water splitting is becoming one of the most important processes for producing green fuel hydrogen. Among various materials, alumina provides the best surface for water splitting to generate green energy hydrogen. Therefore, radiationcatalytic and radiation-thermocatalytic activities of the polymorphic forms of Al 2 O 3 (α-, δ-, γ-) in the water decomposition process were studied at various temperatures. It is established that γ-Al 2 O 3 has relatively high radiation-catalytic properties in the process of water decomposition. The maximum yields of the radiation-chemical molecular hydrogen at 873 K for 30 hrs were 4.5, 5.8, and 7.0 N(H 2 ) × 10 À 18 molecules/g for α-, δand γ-Al 2 O 3 ; indicating the best performance of γ-Al 2 O 3 . The pattern of accumulation of localized states of non-equilibrium charge carriers in polymorphic forms of γ-Al 2 O 3 was determined. Furthermore, the proposed mechanisms of energy transfer and lengths of energy transfer in radiation-heterogeneous processes of water decomposition were determined. The developed method may be used to produce hydrogen fuel on a large scale.

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“…During the dye sensitized solar cell fabrication and operation, dye and semiconductor play an important role for obtaining e cient power generation. Dyes including, natural (Ludin et al 2014, Mary Rosana et al 2020, Narayan 2012, Shalini et al 2015, organometallic (Almalki et al 2021, Chen et al 2009, Chen et al 2008, Chen et al 2006, Joseph et al 2016, Klein et al 2005, and organic dyes (Abusaif et al 2021, Joseph et al 2019, Mahmood 2016, Mishra et al 2009, Thomas et al 2021 were reported for obtaining high power conversion e ciencies among the DSSCs. There are number of metal oxide nanoparticles utilized as the semiconductors for the better performance of DSSCs (Abdelnasser et al 2020, Jose et al 2009, Prakash 2012, Sadegh et al 2021, Vittal &Ho 2017.…”

Section: Introductionmentioning

confidence: 99%

Natural Waste to Electricity: Engineering Pomegranate Peels and Ag-Doped ZnO for Photovoltaic Applications

Lourdusamy¹,

Thomas²,

Kabali

et al. 2021

Preprint

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Utilization of natural waste for energy conversion offers the method for clean energy production with sustainable development. The pomegranate peels are the natural waste generated every day and we describe the conversion of this waste into electricity by a simple and cost-effective method. Dye Sensitized Solar Cells (DSSCs) offer simple and cost-effective method for the preparation of solar cells. The advantages include easy to fabrication, lower cost of the materials and electricity generation under low illumination indoor conditions. DSSCs involve two Transparent Conducting Oxide (TCO) photoelectrodes acting as photoanode and photocathode. In one photoelectrode, Semiconducting oxide (TiO2/ZnO) and dye (Natural/Organometallic) are coated that acts as photo-absorbing materials. The role of dyes and semiconducting material play an important role in determining the photovoltaic conversion efficiency of fabricated solar cells. In this work, hydrothermal method has been adopted for the preparation of pure and silver doped ZnO nanoparticles using polyethylene glycol (PEG) as capping agent via wet chemical route. The structural and optical properties of the prepared samples were studied using X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), Scanning Electron Microscopy (SEM) with Energy Dispersive X-ray Analysis (EDAX) and UV-Visible absorption spectra. A Natural dye from the peels of pomegranate was extracted and dye sensitized solar cells were fabricated with pure and Ag-doped nanoparticles. Both the materials showed the photovoltaic conversion capabilities and showed photoconversion efficiencies. The solar cell fabricated with Ag-doped ZnO semiconducting nanoparticle showed higher short circuit current density as compared to the pure ZnO-nanoparticle synthesized in this study. The photoconversion efficiency of the DSSC based on Ag-doped ZnO showed 30% more conversion efficiency than the cell without silver doping.

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Enhancement of the open-circuit voltage of the dye-sensitized solar cells using a modified ruthenium dye

Cited by 6 publications

References 32 publications

Aqueous Extract of Onion Peels as A Biowaste-Based Sensitizer for Photovoltaic Cells

Aqueous Extract of Onion Peels as A Biowaste-Based Sensitizer for Photovoltaic Cells

A COMPARISON OF HYDROGEN PRODUCTION BY WATER SPLITTING ON THE SURFACE OF α‐, δ‐ AND γ‐Al₂O₃

Natural Waste to Electricity: Engineering Pomegranate Peels and Ag-Doped ZnO for Photovoltaic Applications

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Enhancement of the open-circuit voltage of the dye-sensitized solar cells using a modified ruthenium dye

Cited by 6 publications

References 32 publications

Aqueous Extract of Onion Peels as A Biowaste-Based Sensitizer for Photovoltaic Cells

Aqueous Extract of Onion Peels as A Biowaste-Based Sensitizer for Photovoltaic Cells

A COMPARISON OF HYDROGEN PRODUCTION BY WATER SPLITTING ON THE SURFACE OF α‐, δ‐ AND γ‐Al2O3

Natural Waste to Electricity: Engineering Pomegranate Peels and Ag-Doped ZnO for Photovoltaic Applications

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A COMPARISON OF HYDROGEN PRODUCTION BY WATER SPLITTING ON THE SURFACE OF α‐, δ‐ AND γ‐Al₂O₃