Experimental and theoretical study of TiO2 porosity effect on the exergy efficiency of dye sensitized solar cells

Zouhri, Khalid; Spencer, Matthew; nulph, kayla; Appiah-Kubi, Philip; Fernando, K. A. Shiral

doi:10.1016/j.solener.2022.05.050

Cited by 3 publications

(5 citation statements)

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“…Otherwise, if the film is too thin, the film does not absorb the dye, causing a lower flux of photon-excited electrons in the photoanode through the external circuit. The concentration of titanium affects the building of the crystallite layers, which can affect the porosity of the nanocrystallites, and, as noted by Zhouri et al [27], there must be an equilibrium between porosity and cell efficiency. The higher TiO 2 concentration presented less evident porous (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The higher TiO 2 concentration presented less evident porous (Fig. 1a), which may have negatively influenced the short current density of the cell at 15% concentration [27].…”

Section: Resultsmentioning

confidence: 99%

“…1.17 This work 0.70 [27] 0.89 [15] 0.53 [28] 2.38 [44] 7.56 [17] complete evaporation of the liquid (water), without any additives at room temperature and with no auxiliary or additional devices. This method proved, by analysis such as X-ray diffraction, SEM, absorbance, and band gap, the formation of nanocrystalline-type wurtzite ZnO.…”

Section: Discussionmentioning

confidence: 99%

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Synthesis of TiO2/ZnO photoanodes on FTO conductive glass for photovoltaic applications

et al. 2023

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For oxide semiconductors for application in dye-sensitized solar cells (DSSCs), titanium dioxide conjugated with zinc oxide thin films was synthesized and characterized. The UV (ultraviolet) spectrum characterization showed a peak of absorbance at around 355 nm, with a band gap of 3.25 eV and reflectance around 85%. Such characteristics allowed the fabrication of DSSCs with N719 dye, under simulated light of 100 mW/cm 2 . The highest efficiency of 1.17% was at 5% titanium dioxide and 4 h of dye immersion.

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Section: Resultsmentioning

confidence: 99%

“…The higher TiO 2 concentration presented less evident porous (Fig. 1a), which may have negatively influenced the short current density of the cell at 15% concentration [27].…”

Section: Resultsmentioning

confidence: 99%

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Synthesis of TiO2/ZnO photoanodes on FTO conductive glass for photovoltaic applications

et al. 2023

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“…Dye‐sensitized solar cells (DSSCs) are promising candidates for photovoltaic devices owing to their simple fabrication and cost‐effectiveness compared to commercially available solar cells (Anand et al, 2022; Bhullar et al, 2022; Nam & Boo, 2022; Shobana et al, 2022; Wang et al, 2022; Yadav et al, 2022). The performances of DSSCs are primarily determined by the porosity of the photoanode, optical properties, redox reaction, and photochemical properties of molecular sensitizers (Dong et al, 2014; Ganesh et al, 2019; Ganesh et al, 2020; Singh et al, 2022; Xin et al, 2012; Zouhri et al, 2022). TiO 2 is a promising candidate owing to its low cost, nontoxicity, chemical stability, and band gap in the field of solar cells for industrial photocatalytic and sensing applications (Mahadik et al, 2022; Ullah et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Cost‐effective dye‐sensitized solar cells based on rutile‐phase three‐dimensional TiO₂ hierarchical nanostructures

Arthi¹,

Selvam²,

Hayakawa

et al. 2023

Microscopy Res & Technique

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Specifically engineered three-dimensional (3D) and 1D morphologies are expected to play significant roles in the development of next-generation dye-sensitized solar cells.In this study, using a hydrothermal approach without a surfactant or template, we attempted to synthesize a 3D hierarchical rutile titanium dioxide (TiO 2 ) architecture by varying the growth temperature and time. X-ray diffraction patterns of the synthesized TiO 2 correlated well with rutile TiO 2 . Scanning electron microscopy images exhibited different nanostructures, such as nanorods, aggregated nanorods, and 3D TiO 2 microflowers comprised of nanorods at 100 C, 130 C, and 160 C, respectively, after growth for 6 h. A significantly improved efficiency was observed for the TiO 2 microflowers. The TiO 2 microflowers exhibited an efficiency of 1.16%, short-circuit current density of 12.8 mA cm À2 , open-circuit voltage of 0.692 V, and fill factor of 0.67.

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“…It is considered for its outstanding properties and promising applications in various fields, including photocatalysis, energy, and biosensing [1,2]. It proves that mesoporous TiO 2 is capable of improving the photocatalytic activity of visible light radiation [3] and UV light radiation [4], minimizing the recombination of the electron-hole pairs and optimizing the mass and charge [5], enhancing the conversion efficiency of dye-sensitized cells (DSSC) utilities [6], increasing the performance of lithium-ion battery [7] and stabilizing the storage and thermal of the immobilized enzyme [8].…”

Section: Introductionmentioning

confidence: 99%

The effect of the number of hydrophobic tails of cationic ammonium surfactants on mesoporous TiO₂ synthesized

Fisli,

Velasufah,

Arofah

et al. 2023

Mater. Res. Express

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Mesoporous titanium dioxide (TiO2) is one of the most studied mesoporous materials considering its special character and various applications. In the present work, mesoporous TiO2 was synthesized by a sol-gel method employing different hydrophobic tails of ammonium cationic surfactants templates. The prepared samples were characterized by various techniques. The XRD profiles confirmed that all samples crystallized into the TiO2 anatase phase. The crystallite size of all samples was found to vary in the range of 8.60nm nm to 13.61 nm. The transition temperature of the anatase phase was increased to several Celsius degrees since TiO2 was fabricated with a template assistant. The surface area of the mesoporous TiO2 was increased in the range of 93 m2.g-1 (CTAB) - 116.8 m2.g-1 (MTAB). These values were larger than the TiO2 synthesized without a template of 72 m2.g-1. The total pore volume was also increased between 0.1704 cm3.g-1 (CTAB) and 0.300 cm3.g-1 (MTAB), while the TiO2 synthesized without a template was only 0.161 cm3.g-1. Using CTAB and DDAB yield a uniform mesopore size distribution. MTAB tends to produce non-uniform pore of the mesoporous system. The soft-templating method opens up new possibilities for synthesizing mesoporous metal oxides.

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Experimental and theoretical study of TiO2 porosity effect on the exergy efficiency of dye sensitized solar cells

Cited by 3 publications

References 31 publications

Synthesis of TiO2/ZnO photoanodes on FTO conductive glass for photovoltaic applications

Synthesis of TiO2/ZnO photoanodes on FTO conductive glass for photovoltaic applications

Cost‐effective dye‐sensitized solar cells based on rutile‐phase three‐dimensional TiO₂ hierarchical nanostructures

The effect of the number of hydrophobic tails of cationic ammonium surfactants on mesoporous TiO₂ synthesized

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Experimental and theoretical study of TiO2 porosity effect on the exergy efficiency of dye sensitized solar cells

Cited by 3 publications

References 31 publications

Synthesis of TiO2/ZnO photoanodes on FTO conductive glass for photovoltaic applications

Synthesis of TiO2/ZnO photoanodes on FTO conductive glass for photovoltaic applications

Cost‐effective dye‐sensitized solar cells based on rutile‐phase three‐dimensional TiO2 hierarchical nanostructures

The effect of the number of hydrophobic tails of cationic ammonium surfactants on mesoporous TiO2 synthesized

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Cost‐effective dye‐sensitized solar cells based on rutile‐phase three‐dimensional TiO₂ hierarchical nanostructures

The effect of the number of hydrophobic tails of cationic ammonium surfactants on mesoporous TiO₂ synthesized