Optical and photovoltaic properties of substituted alizarin dyes for dye-sensitized solar cells application

Abubakari, Ismail; Babu, Numbury Surendra; Vuai, Said; Makangara, John J.

doi:10.1080/15567036.2020.1836083

Cited by 4 publications

(5 citation statements)

References 41 publications

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“…They have been extensively used in the textile field for dyeing, but colorants can also confer other properties, such as conductivity and antibacterial activity. For example, the dye alizarin is used extensively in solar cells and is also researched for other electronic applications [ 20 ]. The antibacterial activity of alizarin [ 21 ], quercetin [ 22 ], and curcumin [ 23 , 24 ] makes them suitable for applications such as food packaging [ 25 ] and wound dressings [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

Pilot-Scale Electrospinning of PLA Using Biobased Dyes as Multifunctional Additives

et al. 2022

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Fibers with diameters in the lower micrometer range have unique properties suitable for applications in the textile and biomedical industries. Such fibers are usually produced by solution electrospinning, but this process is environmentally harmful because it requires the use of toxic solvents. Melt electrospinning is a sustainable alternative but the high viscosity and low electrical conductivity of molten polymers produce thicker fibers. Here, we used multifunctional biobased dyes as additives to improve the spinnability of polylactic acid (PLA), improving the spinnability by reducing the electrical resistance of the melt, and incorporating antibacterial activity against Staphylococcus aureus. Spinning trials using our 600-nozzle pilot-scale melt-electrospinning device showed that the addition of dyes produced narrower fibers in the resulting fiber web, with a minimum diameter of ~9 µm for the fiber containing 3% (w/w) of curcumin. The reduction in diameter was low at lower throughputs but more significant at higher throughputs, where the diameter reduced from 46 µm to approximately 23 µm. Although all three dyes showed antibacterial activity, only the PLA melt containing 5% (w/w) curcumin retained this property in the fiber web. Our results provide the basis for the development of environmentally friendly melt-electrospinning processes for the pilot-scale manufacturing of microfibers.

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Section: Introductionmentioning

confidence: 99%

Pilot-Scale Electrospinning of PLA Using Biobased Dyes as Multifunctional Additives

et al. 2022

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“…The future studies are also arguably to concentrate on improving V oc which will in turn improve the performance of the cell. Moreover, the studies on synthesis of other alizarin derivative dyes theoretically reported in our previous works are encouraged [4,36]. Fig.…”

Section: Discussionmentioning

confidence: 84%

“…Recently, a theoretical study on alizarin through substitution of its hydroxyl groups by conjugated molecules containing thiophene, benzene, and thieno[3,2-b]thiophene has been reported [35]. Not only that but also in our previous works we reported the theoretical study on substitution of alizarin molecule through its hydrogen atoms using 4-(benzo[c][1,2,5]thiadiazol-4-yl) benzoic acid, 2-hexylthiophene and carboxylic acid [4,36] where several dye molecules were argued to be useful in DSSCs application. Taking into consideration the several modification possibilities in alizarin through its hydroxyl groups, carbonyl groups and several attached hydrogen atoms, concentrating into studies on this molecule may result to a dye molecule which will go beyond pure alizarin in DSSC technology.…”

Section: Introductionmentioning

confidence: 89%

“…The unsustainability and future expected depletion of the current energy sources in form of fossil fuels and coal has strongly attracted researchers toward alternative energy sources including solar energy [1,2]. In addition to being limited, the current energy sources are non-renewable and unfortunately mostly polluting in nature [3,4]. Additionally, the global energy demand has increased and expected to increase more as a result of growth in population while the current energy sources are fast diminishing [5].…”

Section: Introductionmentioning

confidence: 99%

“…To come up with more efficient cell, the solar radiation capture has to be increased, hence more studies on dye sensitizers which will maximize solar radiation harvesting up to near infrared are needed. Currently, reports show the harvesting of solar radiation by DSSCs to be about 290-800 nm which signifies that only a small fraction of solar energy are utilized [4]. The conjugated materials have been reported to be one of the solution to maximize solar energy absorption in DSSCs due to specific properties attributed by its electron delocalization abilities [16,17].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and photocurrent density–photovoltage (J–V) characterization of a novel alizarin derivative dye for dye-sensitized solar cell technology

Abubakari

Babu

Vuai

et al. 2022

Int J Energy Environ Eng

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Dye-sensitized solar cells technology has attracted extensive academic scholars' interests due to their potential low-cost solar energy harvesting. Increasing performance of dye-sensitized solar cell needs more efficient dye to maximize solar energy absorption. This work presents the synthesis and J-V characterization studies for a novel alizarin derivative dye HDD. The dye was formed by the reaction between brominated alizarin and 5-hexyl-2-thiopheneboronic acid pinacol ester. The final dye product was successfully synthesized as brownish-orange solid. Characterization of the synthesized dye was done using spectroscopic techniques; mass spectrometry, infrared spectroscopy and nuclear magnetic resonance before photovoltaic performance investigation. The dye was found to be useful as photo-sensitizer in dye-sensitized solar cell through calculation of conversion efficiency. Generally, the dye HDD showed better results in terms of photovoltaic properties with open-circuit voltage, short-circuit current density and fill factor of 0.65 V, 0.0146 A/cm 2 and 0.612, respectively. The conversion efficiency of the cell using the synthesized dye HDD was found to be 5.81% under 100 mW/cm 2 solar illuminations. keywords Dye-sensitized solar cell • Photovoltaic properties • Photo-sensitizer • Photocurrent density • Photovoltage

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Microwave assisted structural engineering on efficient eco-friendly natural dye alizarin for dye sensitized solar cells application

Walki,

Madar,

Suresha

et al. 2023

Optik

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Optical and photovoltaic properties of substituted alizarin dyes for dye-sensitized solar cells application

Cited by 4 publications

References 41 publications

Pilot-Scale Electrospinning of PLA Using Biobased Dyes as Multifunctional Additives

Pilot-Scale Electrospinning of PLA Using Biobased Dyes as Multifunctional Additives

Synthesis and photocurrent density–photovoltage (J–V) characterization of a novel alizarin derivative dye for dye-sensitized solar cell technology

Microwave assisted structural engineering on efficient eco-friendly natural dye alizarin for dye sensitized solar cells application

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