Photovoltaic performance and impedance spectroscopy of a purely organic dye and most common metallic dye based dye-sensitized solar cells

Shah, Syed Afaq Ali; Sayyad, Muhammad Hassan; Nasr, Nazia; Toor, Ramshah Ahmad; Sajjad, Sarah; Elbohy, Hytham; Qiao, Qiquan

doi:10.1007/s10854-017-6344-5

Cited by 15 publications

(6 citation statements)

References 41 publications

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“…The R S of the DSSC cell represents the contact resistance at the interfaces, the bulk resistance, the charge transfer resistance in the semiconductor material, and the sheet resistance of the electrodes. , A lower R S value will enhance the fill factor of the DSSC. Furthermore, R SH provides an alternate current path for the light-generated current and is related to the electron recombination occurring at the semiconductor/dye/electrolyte interface.…”

Section: Resultsmentioning

confidence: 99%

Effect on 1-Butyl-3 Methylimidazolium Iodide Ionic Liquid in Nonedible Jatropha Oil-Based Polyurethane Acrylate. Tetrabutylammonium Iodide: Lithium Iodide-Based Gel Polymer Electrolyte for Dye-Sensitized Solar Cell Application

Chai

Aung

Lim

et al. 2021

ACS Appl. Energy Mater.

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Improvement of the electrolyte ionic conductivity in DSSCs application is important as it contributes higher solar conversion efficiency. In this article, the polyurethane acrylate (PUA) gel polymer electrolyte (GPE) system was further improved with the addition of an ionic liquid in terms of ionic conductivity and also photovoltaic performance. The PUA GPE system enhanced with 6 wt % of 1-butyl-3-methylimidazolium iodide (BMII) ionic liquid was found to produce the highest improvement (ionic conductivity) compared to the different content of BMII. Ionic conductivity of (4.17 ± 0.01) × 10–4 S cm–1 was observed at room temperature with the addition of 6 wt % BMII in the GPE system. Moreover, the DSSC utilizing the GPE with 6 wt % BMII produces the highest solar conversion efficiency of (5.72 ± 0.14)% corresponding with the J sc of (23.03 ± 0.2) mA cm–2 and V oc of (0.54 ± 0.01) V.

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Section: Resultsmentioning

confidence: 99%

Effect on 1-Butyl-3 Methylimidazolium Iodide Ionic Liquid in Nonedible Jatropha Oil-Based Polyurethane Acrylate. Tetrabutylammonium Iodide: Lithium Iodide-Based Gel Polymer Electrolyte for Dye-Sensitized Solar Cell Application

Chai

Aung

Lim

et al. 2021

ACS Appl. Energy Mater.

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“…The color of the photoanode changed from transparent to transparent yellowish after Ag nanoparticles were attached to TiO2. The cells were assembled using method described in our previous work (Shah et al, 2017). The currentvoltage measurements of fabricated DSSCs were performed under solar simulator illumination light intensity of 100 mW.cm -2 using the facility described in a previous work (Elbohy et al, 2016).…”

Section: Preparation Of High Performance Tio2 and Tio2: Ag Nps Photoamentioning

confidence: 99%

“…The current-voltage characteristics largely dependent on the series (Rs) and shunt (Rsh) resistance (Mali et al, 2012;Shah et al, 2017). The values of these resistances can be determined from the I-V curve using the relations (3) and (4) (Jiang et al, 2008).…”

Section: Photovoltaic Performancementioning

confidence: 99%

“…The dye-sensitized solar cells (DSSCs), initially reported by O'regan and Grfitzeli (1991) have attracted much interest of the scientists and researchers as next-generation alternative potential photovoltaic technology to the traditional silicon-based owing to their manufacturing ease, low price, reasonable efficiency, unique applications, design flexibility and clean source of renewable energy (Elbohy et al, 2015;Toor et al, 2016;Shah et al, 2017; A DSSC comprises of a photoanode typically a mesoporous wide band semiconducotor film deposited on a fluorine-doped tin oxide (FTO) glass which is sensitized with a dye, an electrolyte consisting of redox coupled solution and a counter electrode commonly consisting of a platinum coated conductive glass substrate (Nazeeruddin et al, 2011). To make a device, the two electrodes are joined together and electrolyte is injected in between.…”

Section: Introductionmentioning

confidence: 99%

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Efficiency Enhancement in Plasmonic Dye-Sensitized Solar Cell Employing High Performance TiO2 Photoanode Doped with Silver Nanoparticles

Nasr

Sayyad

Elbohy

et al. 2018

International Journal of Sustainable Energy and Environmental R

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High performance TiO2 photoanodes undoped and doped with silver nanoparticels of size about 15 nm were fabricated. Employing these electrodes dye-sensitized solar cells (DSSCs) were fabricated using N719 dye as sensitizer and iodide-triodide as redox couple. Current-voltage measurements were performed under the illumination of 100 mW cm-2 (AM 1.5). The electrical parameters of the fabricated cells were extracted from the current-voltage data that include open-circuit voltage, short-circuit current, shunt resistance, series resistance, fill-factor, ideality factor and solar energy-toelectricity conversion efficiency. The comparison of parameters revealed improvement in both the photovoltaic and electrical parameters of the plasmonic cell. The conversion efficiency measured for the reference cell without Ag NPs in TiO2 was 7.43 %, whereas the efficiency of plasmonic device with TiO2:Ag NPs was 9.26 %, resulting an overall efficiency improvement of 23% with Ag NPs. The increased performance of the plasmonic DSSC can be assigned to the improvement of its photovoltaic and electrical parameters. The improved short-circuit photocurrent density appears to be boosted due the enhanced light harvesting capability of the photoanode caused by the localized surface plasmon resonance effect induced in Ag nanoparticles. While, the rise in Voc can be credited to the upward shift of Fermi level of TiO2 due to the dopping of Ag nanoparticles in TiO2 network. Contribution/Originality: This study is based on one of the few attempts on photoanode engineering employing plasmonic effect for developing higher efficiency DSSCs. The comparison with the existing data has revealed significant improvement in the photovoltaic and electrical properties of the plasmonic device. This study has reported that Ag nanoparticles hold a unique plasmonic effect employing which performance parameters of the DSSC are improved much greater as compared to other metallic nanoparticles.

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“…On comparing the co-sensitized configurations, the betanin/lawsone co-sensitized solar cell had a higher average efficiency of 0.793 ± 0.021%, whereas an average efficiency of 0.655 ± 0.019% was demonstrated by the betanin/indigo co-sensitized solar cell. Electrochemical impedance spectroscopy (EIS) of the solar cells was carried out to understand the internal resistances and electron lifetimes of the solar cells 31 and correlate them with their performance characteristics. The dye degradation of indigo and lawsone because of the photocatalytic activity (PCA) of TiO 2 and its effect on the solar cell lifetimes has also been investigated.…”

Section: Introductionmentioning

confidence: 99%

Performance Enhancement of Betanin Solar Cells Co-Sensitized with Indigo and Lawsone: A Comparative Study

Pesala

2019

ACS Omega

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Co-sensitization is an important strategy toward efficiency enhancement of solar cells by enabling better light harvesting across the solar spectrum. Betanin is a natural dye which absorbs light in the major portion of the incident solar spectrum (green region) and is the most efficient natural pigment used in dye-sensitized solar cells. This study investigates the performance enhancement of a betanin solar cell by co-sensitizing it with two natural pigments which show complementary light absorption, i.e., indigo and lawsone, absorbing in the red and blue regions of the solar spectrum, respectively. The calculated highest occupied molecular orbital and lowest unoccupied molecular orbital energies of the pigment molecules, derived from density functional theory (DFT) simulations, confirmed their optimal alignment with respect to the conduction band energy of the TiO2 semiconductor and reduction potential energy level of the I–/I3– electrolyte, a necessary requirement for optimal device performance. Lawsone solar cells displayed better performance, showing average efficiencies of 0.311 ± 0.034%, compared to indigo solar cells showing efficiencies of 0.060 ± 0.004%. Betanin was co-sensitized with indigo and lawsone, and the performances of the co-sensitized solar cells were compared. The betanin/lawsone co-sensitized solar cell showed a higher average efficiency of 0.793 ± 0.021% compared to 0.655 ± 0.019% obtained for the betanin/indigo co-sensitized solar cell. An 11.7% enhancement in efficiency (with respect to betanin) was observed for the betanin/indigo solar cell, whereas a higher enhancement of 25.5% was observed for the betanin/lawsone solar cell. Electrochemical impedance spectroscopy studies confirmed that the higher efficiency can be attributed to the higher electron lifetime of 313.8 ms in the betanin/lawsone co-sensitized solar cell compared to 291.4 ms in the betanin/indigo solar cell. This is due to the energy levels being more optimally aligned in lawsone compared to that of indigo, as observed in the DFT studies, and the lack of dipole moment in indigo, resulting in more efficient charge separation and charge transfer in lawsone.

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Photovoltaic performance and impedance spectroscopy of a purely organic dye and most common metallic dye based dye-sensitized solar cells

Cited by 15 publications

References 41 publications

Effect on 1-Butyl-3 Methylimidazolium Iodide Ionic Liquid in Nonedible Jatropha Oil-Based Polyurethane Acrylate. Tetrabutylammonium Iodide: Lithium Iodide-Based Gel Polymer Electrolyte for Dye-Sensitized Solar Cell Application

Effect on 1-Butyl-3 Methylimidazolium Iodide Ionic Liquid in Nonedible Jatropha Oil-Based Polyurethane Acrylate. Tetrabutylammonium Iodide: Lithium Iodide-Based Gel Polymer Electrolyte for Dye-Sensitized Solar Cell Application

Efficiency Enhancement in Plasmonic Dye-Sensitized Solar Cell Employing High Performance TiO2 Photoanode Doped with Silver Nanoparticles

Performance Enhancement of Betanin Solar Cells Co-Sensitized with Indigo and Lawsone: A Comparative Study

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