Fabrication of optimized eco-friendly dye-sensitized solar cells by extracting pigments from low-cost native wild plants

Golshan, Malihe; Osfouri, Shahriar; Azin, Reza; Jalali, Tahmineh

doi:10.1016/j.jphotochem.2019.112191

Cited by 29 publications

(26 citation statements)

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“…The photoanodes based on the commercial P25 TiO 2 nanoparticles, Calcined undoped, and bio‐Ca‐doped TiO 2 nanofibres were fabricated employing the doctor blade technique, as presented previously 3 . The TiO 2 film thickness was determined using atomic force microscopy (AFM).…”

Section: Methodsmentioning

confidence: 99%

“…The TiO 2 ‐based photoanodes, with a thickness of 8 μm and an active area of 0.5 × 0.5

{cm}^{2}

, were then soaked in the acidified cocktail of the natural dyes (1:1 v/v) for a day. The natural pigments were extracted from Syzygium cumini and Malva verticillata employing a microwave under the optimum conditions presented previously 3 . Then, the platinum‐based electrode was annealed at 400°C for half‐hour.…”

Section: Methodsmentioning

confidence: 99%

“…The dye-anchored to the semiconductor surface is responsible for light absorption and the generation of exciting electrons. 3 These generated electrons are transferred through the semiconductor as an electron carrier to the external circuit, where the oxidized dye is subsequently regenerated by the electron donated by a redox electrolyte, also called the hole injection process. 4,5 Although synthetic dyes as sensitizers in DSSCs provide higher performance and durability than natural dyes, they suffer from several limitations, including adverse effects on the environment, the high cost of noble metals, and a complex synthesis process.…”

Section: Introductionmentioning

confidence: 99%

“…4 Besides, the natural dyes were extracted employing microwave and under optimum conditions presented previously. 3,4 Finally, the photovoltaic performance of all studied NDSSCs was investigated by photocurrent-voltage I À V ð Þ characteristic measurement under standard AM 1.5G irradiation. Moreover, the effective monochromatic wavelengths were assessed using incident photon-to-electron conversion efficiency (IPCE) spectra.…”

Section: Introductionmentioning

confidence: 99%

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Efficiency and stability improvement of natural dye‐sensitized solar cells using the electrospun composite of TiO ₂ nanofibres doped by the bio‐Ca nanoparticles

Golshan

Osfouri

Azin

et al. 2022

Intl J of Energy Research

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Summary The dye‐sensitized solar cells (DSSCs) can be effectively improved and stabilized by outstanding electrical and morphological characteristics of TiO2 nanofibres combined with bio‐calcium doping. The pristine and bio‐Ca‐doped TiO2 nanofibres were fabricated using a cost‐effective electrospinning technique. Biocompatible calcium carbonate nanoparticles (bio‐Ca) were synthesized from the cuttlebone of Sepia Pharaonis. Moreover, a facile one‐step procedure was employed to fabricate efficient TiO2 nanofibres‐based DSSCs using a Pechini‐type sol. This approach produced a highly porous dense film of TiO2 upon sintering without the need for the hot‐pressing or adhesion layer steps. Based on the results, the DSSCs fabricated by the bio‐Ca‐doped TiO2 nanofibres showed the highest Iitalicsc, Vitalicoc, and η of 2.19 mA, 0.41 V, and 1.48% respectively. This superiority could be due to the higher specific surface area and the relatively smaller average diameter observed for bio‐Ca‐doped TiO2 nanofibres, which improved dye‐loading and guided electron transport respectively. In addition, Ca2+ doping significantly suppressed the photocatalytic activity in the bio‐Ca‐doped TiO2 nanofibres owing to the formation of the TiO2 rutile‐anatase combined phase. Besides, the substitution of Ti4+ with Ca2+ positively affects the conduction band of TiO2 and causes trap sites that retard the charge recombination. Our results also demonstrated that the bio‐Ca‐doped TiO2 nanofibres‐based DSSC maintained about 78.38% of its initial efficiency after two weeks, while DSSCs fabricated by the TiO2 nanofibres and TiO2 nanoparticles retained 63.71% and 27.38% respectively. The superior stability could be due to the combined effect of nanoparticles into nanofibres transformation and bio‐Ca doping.

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Section: Methodsmentioning

confidence: 99%

“…The TiO 2 ‐based photoanodes, with a thickness of 8 μm and an active area of 0.5 × 0.5

{cm}^{2}

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Efficiency and stability improvement of natural dye‐sensitized solar cells using the electrospun composite of TiO ₂ nanofibres doped by the bio‐Ca nanoparticles

Golshan

Osfouri

Azin

et al. 2022

Intl J of Energy Research

Self Cite

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“…The dark current is smaller than the bright current because, in the bright current, there is a photo flow (IPh) which is influenced by the size of the light intensity shining on the cell. The electrolytes' role in DSSC is as charge regeneration on dye molecules and charge transport in redox pairs [15].…”

Section: Platinamentioning

confidence: 99%

POLY ORGANIC POLYMER (3-HEXYLTHIOPHENE) P3HT as LIGHT SENSITIVITY in PROTOTYPE DYE-SENSITIZED SOLAR CELLS (DSSC)

Darmawan¹,

Cari

Supriyanto

et al. 2021

IPR

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This research aims to review the characteristic of the nature of electricity polymer material poly(3-hexylthiophene) P3HT against increasing efficiency solar cells based on dye-sensitized solar cells (DSSC). The testing sample has done electricity P3HT el-kahfi 100/ I-V meter. The optical properties use spectrophotometer UV visible 1601 PC and characterizing IV DSSC use Keithley 2600 a type. The absorbance of P3HT polymer 1% has an absorption peak in the wavelength range of 300-650 nm. Thus the P3HT polymer material can absorb light in the visible wavelength range. The electrical properties of P3HT 1% indicate that the material has a response to light. In bright conditions, P3HT 1% shows a conductivity of 3.7x10-3Ω-1m-1 and in dark conditions 2.2x10-3Ω-1m-1. Meanwhile, Pt (Hexacloroplatinic IV) Platina as the opposing electrode can improve the performance of DSSC, which is because Pt (Hexacloroplatinic IV) functions as a catalyst to accelerate the redox reaction with electrolytes. The use of P3HT 1% can improve DSSC performance. DSSC using 1% P3HT and using Pt (Hexacloroplatinic IV) as the opposing electrode produced an efficiency value of 1.8x10-2%.

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Prodigiosin production from Serratia marcescens strain CSK and their antioxidant, antibacterial, cytotoxic effect and in silico study of caspase‐3 apoptotic protein

Sudhakar¹,

Shobana²,

Selvankumar³

et al. 2021

Biotech and App Biochem

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The present study emphasizes the production and optimization of prodigiosin (PG) pigment from Serratia marcescens strain CSK, which was isolated from Shevaroy Hills, Salem district, Tamil Nadu, India. The response surface methodology analysis was applied for the optimization process of PG production. The maximum production of PG (2950 mg/L) was obtained at pH 7.0 with the addition of tryptophan (4.0 g/L) and sucrose (3.0 g/L) with 60 h of incubation. Further, the PG was characterized using high‐performance liquid chromatography, Fourier‐transform infrared spectroscopy, and gas chromatography‐mass spectrometry. The purified PG exhibited strong antioxidant and antibacterial activities. Also, PG's cytotoxic effects against human breast cancer (MCF‐7) cells were observed through acridine orange‐ethidium bromide (AO‐EB) and Hoechst staining. Molecular dockingstudies revealed that PG could bind positively to the caspase‐3 (breast cancer protein 1RE1) binding site with a binding energy score of 17.37 kcal/mol. Overall, the novel PG was found to be an anticancer drug for potential applications in the pharmaceutical industry.

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Fabrication of optimized eco-friendly dye-sensitized solar cells by extracting pigments from low-cost native wild plants

Cited by 29 publications

References 50 publications

Efficiency and stability improvement of natural dye‐sensitized solar cells using the electrospun composite of TiO ₂ nanofibres doped by the bio‐Ca nanoparticles

Efficiency and stability improvement of natural dye‐sensitized solar cells using the electrospun composite of TiO ₂ nanofibres doped by the bio‐Ca nanoparticles

POLY ORGANIC POLYMER (3-HEXYLTHIOPHENE) P3HT as LIGHT SENSITIVITY in PROTOTYPE DYE-SENSITIZED SOLAR CELLS (DSSC)

Prodigiosin production from Serratia marcescens strain CSK and their antioxidant, antibacterial, cytotoxic effect and in silico study of caspase‐3 apoptotic protein

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Fabrication of optimized eco-friendly dye-sensitized solar cells by extracting pigments from low-cost native wild plants

Cited by 29 publications

References 50 publications

Efficiency and stability improvement of natural dye‐sensitized solar cells using the electrospun composite of TiO 2 nanofibres doped by the bio‐Ca nanoparticles

Efficiency and stability improvement of natural dye‐sensitized solar cells using the electrospun composite of TiO 2 nanofibres doped by the bio‐Ca nanoparticles

POLY ORGANIC POLYMER (3-HEXYLTHIOPHENE) P3HT as LIGHT SENSITIVITY in PROTOTYPE DYE-SENSITIZED SOLAR CELLS (DSSC)

Prodigiosin production from Serratia marcescens strain CSK and their antioxidant, antibacterial, cytotoxic effect and in silico study of caspase‐3 apoptotic protein

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Product

Resources

About

Efficiency and stability improvement of natural dye‐sensitized solar cells using the electrospun composite of TiO ₂ nanofibres doped by the bio‐Ca nanoparticles

Efficiency and stability improvement of natural dye‐sensitized solar cells using the electrospun composite of TiO ₂ nanofibres doped by the bio‐Ca nanoparticles