Review on Natural Dye-Sensitized Solar Cells (DSSCs)

Adedokun, Oluwaseun; Titilope, Kamil; Awodugba, Ayodeji Oladiran

doi:10.19072/ijet.96456

Cited by 38 publications

(41 citation statements)

References 34 publications

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“…An electrolyte containing a redox couple fills the gap between the electrodes. The redox mediator is usually an organic solvent containing a redox system, such as an iodide/triiodide (I − /I 3− ) couple [378,379]. The use of a bio-based polymer electrolyte in place of the conventional organic solvent electrolyte could solve the leakage, corrosion, and stability issues often caused by the liquid-type electrolyte.…”

Section: Application Of Bio-based Polymer Electrolytesmentioning

confidence: 99%

Bio-Based Polymer Electrolytes for Electrochemical Devices: Insight into the Ionic Conductivity Performance

et al. 2020

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With the continuing efforts to explore alternatives to petrochemical-based polymers and the escalating demand to minimize environmental impact, bio-based polymers have gained a massive amount of attention over the last few decades. The potential uses of these bio-based polymers are varied, from household goods to high end and advanced applications. To some extent, they can solve the depletion and sustainability issues of conventional polymers. As such, this article reviews the trends and developments of bio-based polymers for the preparation of polymer electrolytes that are intended for use in electrochemical device applications. A range of bio-based polymers are presented by focusing on the source, the general method of preparation, and the properties of the polymer electrolyte system, specifically with reference to the ionic conductivity. Some major applications of bio-based polymer electrolytes are discussed. This review examines the past studies and future prospects of these materials in the polymer electrolyte field.

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Section: Application Of Bio-based Polymer Electrolytesmentioning

confidence: 99%

Bio-Based Polymer Electrolytes for Electrochemical Devices: Insight into the Ionic Conductivity Performance

et al. 2020

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“…ITO is characterized by the highest available optical transmittance of ~90% in visible spectrum light with the lowest electrical resistivity of ~10 -4 Ω•cm [28]. Among all the components, the dye plays a crucial role in the conversion of sunlight into electricity [1,19]. Its role is to extend the absorption of solar light by mesoporous TiO 2 layer from visible to the near-infrared range (up to 920 nm) in the solar spectrum and thus increasing the efficiency of solar conversion [10].…”

Section: Fig 1 Scheme Of Dye-sensitized Solar Cellsmentioning

confidence: 99%

Dye Photosensitizers and Their Influence on DSSC Efficiency: A Review

Krawczak

2019

IAPGOS

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Since early 1990s dye-sensitized solar cells (DSSC) has been developed by many research groups all over the World. This paper presents a review of researches focusing on photosensitizer influence on DSSC efficiency. Variety of dye substance has been analyzed. The highest efficiency around 11.2% has been noted for ruthenium-based DSSC devices. Natural dyes allowed to reach 4.6%. The most metal-free organic dyes resulted in efficiency ranged from 5% to 9%, however, some of them (e.g. Y123) allowed to obtain devices with efficiencies equal to 10.3%. Co-sensitization is the new approach which results in efficiencies up to 14.3%.

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“…The incorporation of new nanoparticles to solar cell matrix containing a natural dye can enhance free electrons scattering, hence creating a new position which consequently limits the electron mobility and increases light absorption. Solar cell involves an electrolyte media for performing its designated function, although employing the solid electrolyte may leads to a leak, hence antistatic hydrophilic materials may be used for this purpose (3). The traditional polymer solar cells, also known as all polymer solar cells (APSC)have long been used in the last few decades, nevertheless they haven't gained the desired high performance compared to their new counterparts, manufactured by modern techniques, due to many challenges: the poor polymer-polymer miscibility may lead to a high phase segregation between donor-acceptor, which enhances short circuit current density ( JSC), and fill factor, hence decreasing efficiency of solar cells (4).The efficiency of polymer solar cells is also affected by the diffusion length of the exaction, i.e.…”

Section: Introductionmentioning

confidence: 99%

Natural Pigment –Poly Vinyl Alcohol Nano composites Thin Films for Solar Cell

2020

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Solar cells thin films were prepared using polyvinyl alcohol (PVA) as a thin film, with extract of natural pigment from local flower. A concentration of 0.1g/ml of polyvinyl alcohol solution in water was prepared for four samples, with various concentrations of plant pigment (0, 15, 25 and 50) % added to each of the four solutions separately for preparing (PVA with low concentrated dye , PVA with medium concentrated dye and PVA with high concentrated dye ) thin films respectively . Ultraviolet absorption regions were obtained by computerized UV-Visible (CECIL 2700). Optical properties including (absorbance, reflectance, absorption coefficient, energy gap and dielectric constant) via UV- Vis were tested, too. Fourier transform infrared (FTIR) spectrophotometer was employed to test the samples. Thermal analysis of thin films, including melting point (Tm), onset degree, endset degree, and crystallinity% were tested by differential scanning calorimeter (DSC). Three dimensional morphologies of thin films were inspected by atomic force microscopy (ATM). Contact angle also was tested as an index to hydrophilicity. Results proved that the ultraviolet and FTIR absorption increase after adding the natural pigment to PVA thin film, as well as it increases with increasing concentration of natural pigment. DSC analysis revealed an increase of PVA melting point when adding 15% concentration and it decreases with a 50% concentration of pigment. AFM results show an increase in surface roughness, hence the surface bearing index of PVA thin films is inversely proportional to pigment concentration. Contact angle decreases from 46.5° for pure PVA thin film to 44. 8°, 42. 6° and 35.2° after adding (15, 25, and 50)% concentration of natural dye respectively. Optical properties were enhanced by adding the natural dye, hence energy gap decreased from 3 eV for pure PVA to 2.3 eV for the PVA with a high concentrate dye. Dielectric constant increased with increasing concentration of dye, which leads to high polarization of solar cell.

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Review on Natural Dye-Sensitized Solar Cells (DSSCs)

Cited by 38 publications

References 34 publications

Bio-Based Polymer Electrolytes for Electrochemical Devices: Insight into the Ionic Conductivity Performance

Bio-Based Polymer Electrolytes for Electrochemical Devices: Insight into the Ionic Conductivity Performance

Dye Photosensitizers and Their Influence on DSSC Efficiency: A Review

Natural Pigment –Poly Vinyl Alcohol Nano composites Thin Films for Solar Cell

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