Anthocyanin pigment-based dye-sensitized solar cells with improved pH-dependent photovoltaic properties

Mejica, Glennise Faye C.; Unpaprom, Yuwalee; Dussadee, Natthawud; Buochareon, Sermsuk; Ramaraj, Rameshprabu

doi:10.1016/j.seta.2022.101971

Cited by 16 publications

(11 citation statements)

References 26 publications

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“…Solar cell research aims to create affordable, safe, and highly efficient materials that transform solar energy into electricity [1]. While the first generation of solar cells was made of expensive monocrystalline silicon, the newer generation of solar photovoltaics, Dye-sensitized solar cells (DSSCs), offers a more cost-effective and temperatureinsensitive alternative [2,3]. DSSCs are made of nanostructured semiconducting metal oxide materials and sensitized to visible light by a dye molecule.…”

Section: Research Backgroundmentioning

confidence: 99%

Low-Cost Solar Energy Harvesting: A Study on Dye-Sensitized Solar Cells Using Inthanin Leaf Extract as a Natural Photosensitizer

Onyemowo,

Unpaprom,

Ramaraj

2023

ajarcde

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The world is actively pursuing renewable energy resources to combat environmental pollution and greenhouse gas emissions caused by the burning of fossil fuels. Solar energy is the most abundant, continuously available form of renewable energy, and dye-sensitized solar cells (DSSCs) are being explored as an alternative to traditional silicon-based solar cells due to their low cost of materials, ease of production, and efficiency. The photoanode is a crucial component in DSSCs, and the main challenges faced by these solar cells are charge recombination and low light harvesting ability. This study aims to investigate the efficacy of natural dyes as the sensitizer for the fabrication of DSSCs. Natural pigments were extracted from Inthanin leaves using the solvent extraction technique. The concentration and composition of the pigment were analyzed through pigment analysis utilizing UV a spectrophotometer. Inthanin has a higher chlorophyll a to b ratio. A higher chlorophyll a to b ratio has been shown to be associated with improved light harvesting and electron transport efficiency. This is because chlorophyll a is more efficient at transferring electrons to the electron transport chain than chlorophyll b. The higher chlorophyll a to b ratio could lead to improved electron transfer to the photoanode. The photoelectric parameters of the DSSC were evaluated using I-V characterization. DSSCs coated with Inthanin dye extract produced a short circuit current density (Jsc) of 0.02 mA/cm2, open circuit voltage (Voc) of 0.07 V, fill factor (FF) of 33% and an efficiency (????) of 0.1%.

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Section: Research Backgroundmentioning

confidence: 99%

Low-Cost Solar Energy Harvesting: A Study on Dye-Sensitized Solar Cells Using Inthanin Leaf Extract as a Natural Photosensitizer

Onyemowo,

Unpaprom,

Ramaraj

2023

ajarcde

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“…These semiconductors are usually metal oxides with excellent photochemical and optoelectronic characteristics such as cadmium oxide (CdO), titanium dioxide (TiO 2 ), and zinc oxide (ZnO), among others. However, most of the successfully produced DSSCs, utilize synthetic dyes, mainly derived from ruthenium metals due to their intense charge-transfer absorption in the visible range of the solar spectrum, long excitation lifetime, and highly efficient metal-to-ligand charge transfer [ 219 ]. The problem lies in the several disadvantages that shave these compounds, namely, related cost, resource scarcity, heavy metal toxicity, complex synthesis, and low yield.…”

Section: Potential Applicationsmentioning

confidence: 99%

“…It represents their two-sided coin characteristics, where this can be extremely advantageous in some cases, while in others, it is a major flaw. Bearing this in mind, very recently, Mejica and colleagues, have investigated the effects of pH on the stability of ACNs as a photosensitizer for DSSCs [ 219 ]. They utilize ACNs from Malabar spinach ripped fruits and tested the impact of different pH values (1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 11.33) on their electrical properties.…”

Section: Potential Applicationsmentioning

confidence: 99%

Behind the Scenes of Anthocyanins—From the Health Benefits to Potential Applications in Food, Pharmaceutical and Cosmetic Fields

et al. 2022

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Anthocyanins are widespread and biologically active water-soluble phenolic pigments responsible for a wide range of vivid colours, from red (acidic conditions) to purplish blue (basic conditions), present in fruits, vegetables, and coloured grains. The pigments’ stability and colours are influenced mainly by pH but also by structure, temperature, and light. The colour-stabilizing mechanisms of plants are determined by inter- and intramolecular co-pigmentation and metal complexation, driven by van der Waals, π–π stacking, hydrogen bonding, and metal-ligand interactions. This group of flavonoids is well-known to have potent anti-inflammatory and antioxidant effects, which explains the biological effects associated with them. Therefore, this review provides an overview of the role of anthocyanins as natural colorants, showing they are less harmful than conventional colorants, with several technological potential applications in different industrial fields, namely in the textile and food industries, as well as in the development of photosensitizers for dye-sensitized solar cells, as new photosensitizers in photodynamic therapy, pharmaceuticals, and in the cosmetic industry, mainly on the formulation of skin care formulations, sunscreen filters, nail colorants, skin & hair cleansing products, amongst others. In addition, we will unveil some of the latest studies about the health benefits of anthocyanins, mainly focusing on the protection against the most prevalent human diseases mediated by oxidative stress, namely cardiovascular and neurodegenerative diseases, cancer, and diabetes. The contribution of anthocyanins to visual health is also very relevant and will be briefly explored.

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“…Synthetic dyes such as ruthenium, osmium, and other metal complex-based dyes were reported as the most stable and effective for dye-sensitized solar cells (DSSC) (Dhonde et al, 2022;Huang et al, 2018). However, synthetic dyes have drawbacks in complex chemical processes, not environmentally friendly or toxic, limited availability, and expensive fabrication (Alkali et al, 2022;Mejica et al, 2022;Yadav et al, 2023). Therefore, we need a sensitizer that is abundantly available, easy to extract, friendly to the environment, and simple and inexpensive to fabricate (Adedokun et al, 2021;Oladeji et al, 2022;Yadav et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Study of Optical and Electrochemical Properties of Solvent-Dependent Natural Dye Extracted from <i>Rivina humilis</i> L

Aliah¹,

Iman²,

sriwidati³

et al. 2023

J. Ecol. Eng.

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This work aimed to study the natural dye extracted from Indonesian wild plants (Rivina humilis L.) using different solvents. The natural dye was extracted using the maceration method. Three different solvents, namely, aquades, acetone, and ethanol 96%, were used to extract natural dye from Rivina humilis L fruit. The absorbance spectra of the extracted dye were recorded using Ultraviolet-Visible (UV-Vis) spectroscopy. The different spectra of betalain pigment revealed the dye extract's dependence on the solvent. The functional groups of the extracted dye were analyzed using Fourier transform infrared (FTIR) spectroscopy. The adherence of carbonyl and hydroxyl groups from FTIR spectra indicated that this dye could anchor to a semiconducting material, e.g., TiO 2, which was commonly used in dye-sensitized solar cells (DSSC). The electrochemical properties of the extracted pigments were studied through higher occupied molecular orbital (HOMO) and lower unoccupied molecular orbital (LUMO) energy levels. Based on the results, the best performance to construct DSSC was achieved by natural dye adsorption with aquades solvent.

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Anthocyanin pigment-based dye-sensitized solar cells with improved pH-dependent photovoltaic properties

Cited by 16 publications

References 26 publications

Low-Cost Solar Energy Harvesting: A Study on Dye-Sensitized Solar Cells Using Inthanin Leaf Extract as a Natural Photosensitizer

Low-Cost Solar Energy Harvesting: A Study on Dye-Sensitized Solar Cells Using Inthanin Leaf Extract as a Natural Photosensitizer

Behind the Scenes of Anthocyanins—From the Health Benefits to Potential Applications in Food, Pharmaceutical and Cosmetic Fields

Study of Optical and Electrochemical Properties of Solvent-Dependent Natural Dye Extracted from <i>Rivina humilis</i> L

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