Fruit based Dye Sensitized Solar Cells

Ung, Mee Ching; Sipaut, Coswald Stephen; Dayou, Jedol; Liow, Kai Sing; Kulip, Julius; Mansa, Rachel Fran

doi:10.1088/1757-899x/217/1/012003

Cited by 13 publications

(4 citation statements)

References 4 publications

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“…Unfortunately, even though solar energy is free, the high costs of conversion and storage limit the technology's accessibility. As a result of their relatively low cost, easy preparation technique, low toxicity, and ease of processing, dye-sensitized solar cells (DSSCs) have been the subject of extensive research [1][2][3][4][5][6][7][8][9][10]. Despite this, due to their high cost, scarcity, and lack of long-term stability, the present DSSC materials have a lot of room for replacement.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Effect of 1,4-Dioxane on the Kinetics of the Oxidation of Iodide by Dicyanobis(bipyridine)iron(III) in Water

et al. 2021

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Dye-sensitized solar cells (DSSCs) are a technically and financially viable alternative to today’s photovoltaic systems using p-n junctions. The two functions are isolated here, which are unlike traditional systems where the semiconductor is thought to perform both light absorption and charge carrier transport. This article discusses the potential use of dicyanobis(bipyridine)iron(III) to oxidize iodide as a sensitizer in DSSCs. However, it is critical to understand the kinetics of this essential process in order to understand the mechanism of electron transport. The oxidation of iodide by dicyanobis(bipyridine)iron(III) in three reaction media was studied: water, 10% v/v 1,4-dioxane-water, and 20% v/v 1,4-dioxane-water. The reaction was carried out in a regular laboratory setting, with no special sensitive conditions or the use of expensive materials, making it a cost-effective and practical method. Dicyanobis(bipyridine)iron(III) oxidized iodide in selected media at 0.06 M ionic strength and constant temperature. The reaction was subjected to a spectrophotometric analysis. The data were acquired by measuring the rise in visible absorbance as a function of time after the formation of dicyanobis(bipyridine)iron(II). The reaction proceeded with an overall fractional (0.5), first order, and third order in water, 10% media, and 20% media, respectively. The presence of dicyanobis(bipyridine)iron(III) in either of the reaction media had no effect on the rate. The effect of protons (H+) on the rate constant indicated resistance in water and catalysis in dioxane-water media containing 10–20% dioxane. When the ionic strength was raised, there was no change in the rate constant in water, but there was a deceleration in both binary solvent media. In an aqueous medium, the thermodynamic parameters of activation were computed as Ea 46.23 kJ mol−1, 24.62 M s−1, ΔH# 43.76 kJ mol−1, ΔS# −226.5 J mol−1 K−1, and ΔG# 111.26 kJ mol−1 (25 °C). By increasing the rate of the reaction to its maximum, this study discovered the binary solvent media with the highest catalytic efficiency, i.e., 20% v/v 1,4-dioxane-water, which may increase the efficiency of DSSCs without using any expensive material or unusual experimental conditions.

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Section: Introductionmentioning

confidence: 99%

Catalytic Effect of 1,4-Dioxane on the Kinetics of the Oxidation of Iodide by Dicyanobis(bipyridine)iron(III) in Water

et al. 2021

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“…The electrolyte solution consisted of redox couple of iodine and iodide (I -/I3 -). Preparation of the electrolyte solution using potassium iodide as the iodine source was conducted based on the technique described in [19]. First, 6 g potassium iodide and 3 g iodine were mixed and stirred for 1 hour.…”

Section: Experimental Set-upmentioning

confidence: 99%

Development of Electrode Deposition Methods for Scale-up of Dye Sensitized Solar Cells

Mutiari¹,

Ananda²,

Widiatmoko

et al. 2020

J. Eng. Technol. Sci.

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 Various deposition methods for scaled-up of Dye Sensitized Solar Cell (DSSC).  The doctor-blade method shows excellence performance for the scale-up process.  A higher active area shows lower performance despite similar deposition method.  Need a good electrical contact in interface of electrodes-conductive glass.  The screen printing method shows the lowest resistance in that interface.

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“…Heterogeneous FeNi 3 /NiFe 2 O 4 nanoparticles with modified graphene were also explored as electrocatalysts for dye-sensitized solar cells [7]. Studies on making ecologically acceptable and stable DSSCs using natural dyes and NHC-based iron as sensitizers [8][9][10], copper and other transition metal-based mediators [11,12], and electrolytes based on gels and polymers [13][14][15][16][17] have been published. The steric, structural, and compositional effects of solvent on the efficiency of DSSC have also been investigated electrochemically [15,18].…”

Section: Introductionmentioning

confidence: 99%

Catalytic Behavior of Extended π-Conjugation in the Kinetics of Sensitizer-Mediator Interaction

Khattak¹

2022

Recent Advances in Chemical Kinetics

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This chapter discusses the catalytic effect of extended π-conjugation on the electron transfer process between ferricyphen-ferrocyanide and ferricypyr-ferrocyanide in an aqueous medium. Ferricyphen and ferricypyr may be feasible options for the sensitizer in dye-sensitized solar cells due to their high reduction potential, stability, capability as an outer-sphere oxidant, and photosensitivity. Meanwhile, ferrocyanide could be used as a mediator in DSSCs instead of iodide to avoid iodate production and achieve a similar reduction potential and stability. This chapter compared the ability of competent putative sensitizers to oxidize the likely mediator in water. In contrast to the 2,2′-dipyridyl chelate, the extended π-conjugation in 1,10-phenanthroline accelerated the redox process by increasing the electron affinity of ferricyphen as compared to ferricypyr. The reactions had the same kinetics but different rate constants, indicating that the ferricyphen-ferrocyanide reaction was several times faster than the ferricypyr-ferrocyanide reaction, revealing and confirming the catalytic influence of extended π-conjugation on the redox process.

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Fruit based Dye Sensitized Solar Cells

Cited by 13 publications

References 4 publications

Catalytic Effect of 1,4-Dioxane on the Kinetics of the Oxidation of Iodide by Dicyanobis(bipyridine)iron(III) in Water

Catalytic Effect of 1,4-Dioxane on the Kinetics of the Oxidation of Iodide by Dicyanobis(bipyridine)iron(III) in Water

Development of Electrode Deposition Methods for Scale-up of Dye Sensitized Solar Cells

Catalytic Behavior of Extended π-Conjugation in the Kinetics of Sensitizer-Mediator Interaction

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