Biomolecular photosensitizers for dye-sensitized solar cells: Recent developments and critical insights

Maddah, Hisham A.; Berry, Vikas; Behura, Sanjay K.

doi:10.1016/j.rser.2019.109678

Cited by 96 publications

(52 citation statements)

References 206 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such oxides possess a large energy band gap of 3 -3.2 eV. Implementing an anatase allotropic form of TiO 2 is more commendable in DSSCs as juxtaposed with a rutile form thanks to its higher energy band gap of 3.2 eV whereas the rutile form has a band gap of about 3 eV [20] [21], even if alternative large band gap oxides like ZnO and Nb 2 O 5 possess as well given encouraging findings [22] [23]. Thanks to being non-toxic and less expensive and its easy availability, TiO 2 is mostly utilized as a semiconducting layer.…”

Section: Working Electrode (We)mentioning

confidence: 99%

Electrochemical Engineering in the Core of the Dye-Sensitized Solar Cells (DSSCs)

Ghernaout¹,

Boudjemline²,

Elboughdiri³

2020

OALib

View full text Add to dashboard Cite

Dye-sensitized solar cells (DSSCs) are classed in the category of thin-film solar cells, which have been under thorough investigation during the last thirty years thanks to their low price, easy fabrication procedure, low toxicity and ease of generation. Even now, there are great efforts to substitute the present DSSC materials because of their elevated price, less abundance, and long-term stability. The performance of present DSSCs attains 12%, employing Ru(II) dyes via regulating material and structural features, which remains less than the performance given by first-and second-generation solar cells, i.e., other thin-film solar cells and Si-based solar cells which provide ~20% -30% performance. This work focuses on the main findings of Sharma et al.[1] which presented an in-depth review on DSSC fabrication, running principle, fundamental issues (low efficiency, low scalability, and low stability), prospective efficient materials, and finally a brief insight to commercialization.

show abstract

Section: Working Electrode (We)mentioning

confidence: 99%

Electrochemical Engineering in the Core of the Dye-Sensitized Solar Cells (DSSCs)

Ghernaout¹,

Boudjemline²,

Elboughdiri³

2020

OALib

View full text Add to dashboard Cite

show abstract

“…The typical DSSC employs a photoanode, which comprises organic dye that is chemically anchored onto a nanostructured TiO 2 semiconductor oxide, a catalyst coated transparent conducting oxide and a redox couple triiodide electrolyte (I − /I 3 − ) to generate electricity from sunlight [ 35 , 36 ]. The dye plays a vital role in generation of electric current because the basic function of light absorption, charge injection and regeneration of electrons of the oxidized electrolyte is performed by the dye molecules [ 37 ]. The dye absorbs photons of solar radiation and transfers photo generated electrons into the band gap of the semiconductor.…”

Section: Introductionmentioning

confidence: 99%

Density Functional Theory Study of Optical and Electronic Properties of (TiO2)n=5,8,68 Clusters for Application in Solar Cells

2021

View full text Add to dashboard Cite

A range of solution-processed organic and hybrid organic−inorganic solar cells, such as dye-sensitized and bulk heterojunction organic solar cells have been intensely developed recently. TiO2 is widely employed as electron transporting material in nanostructured TiO2 perovskite-sensitized solar cells and semiconductor in dye-sensitized solar cells. Understanding the optical and electronic mechanisms that govern charge separation, transport and recombination in these devices will enhance their current conversion efficiencies under illumination to sunlight. In this work, density functional theory with Perdew-Burke Ernzerhof (PBE) functional approach was used to explore the optical and electronic properties of three modeled TiO2 brookite clusters, (TiO2)n=5,8,68. The simulated optical absorption spectra for (TiO2)5 and (TiO2)8 clusters show excitation around 200–400 nm, with (TiO2)8 cluster showing higher absorbance than the corresponding (TiO2)5 cluster. The density of states and the projected density of states of the clusters were computed using Grid-base Projector Augmented Wave (GPAW) and PBE exchange correlation functional in a bid to further understand their electronic structure. The density of states spectra reveal surface valence and conduction bands separated by a band gap of 1.10, 2.31, and 1.37 eV for (TiO2)5, (TiO2)8, and (TiO2)68 clusters, respectively. Adsorption of croconate dyes onto the cluster shifted the absorption peaks to higher wavelengths.

show abstract

“…It has been considered as one of the most promising renewable energy sources. Photovoltaics are classified to three generations, as shown in Figure 1 [1,[4][5][6][7]. The first-generation solar cells, named silicon-based solar cells or the traditional solar cells, made up of crystalline silicon.…”

Section: Introductionmentioning

confidence: 99%

Nanostructured Transition Metal Compounds as Highly Efficient Electrocatalysts for Dye-Sensitized Solar Cells

Huang¹,

Lee²

2021

Solar Cells - Theory, Materials and Recent Advances

View full text Add to dashboard Cite

Nowadays, the requirement of energy increases every year, however, the major energy resource is fossil fuel, a limiting source. Dye-sensitized solar cells (DSSCs) are a promising renewable energy source, which could be the major power supply for the future. Recently, the transition metal component has been demonstrated as potential material for counter electrode of platinum (Pt)-free DSSCs owing to their excellent electrocatalytic ability and their abundance on earth. Furthermore, the transition metal components exist different special nanostructures, which provide high surface area and various electron transport routs during electrocatalytic reaction. In this chapter, transition metal components with different nanostructures used for the application of electrocatalyst in DSSCs will be introduced; the performance of electrocatalyst between intrinsic heterogeneous rate constant and effective electrocatalytic surface area are also be clarified. Final, the advantages of the electrocatalyst with different dimensions (i.e., one to three dimension structures) used in DSSCs are also summarized in the conclusion.

show abstract

Biomolecular photosensitizers for dye-sensitized solar cells: Recent developments and critical insights

Cited by 96 publications

References 206 publications

Electrochemical Engineering in the Core of the Dye-Sensitized Solar Cells (DSSCs)

Electrochemical Engineering in the Core of the Dye-Sensitized Solar Cells (DSSCs)

Density Functional Theory Study of Optical and Electronic Properties of (TiO2)n=5,8,68 Clusters for Application in Solar Cells

Nanostructured Transition Metal Compounds as Highly Efficient Electrocatalysts for Dye-Sensitized Solar Cells

Contact Info

Product

Resources

About