Multi-layers of TiO2 nanoparticles in the photoelectrode and binary iodides in the gel polymer electrolyte based on poly(ethylene oxide) to improve quasi solid-state dye-sensitized solar cells

Nishshanke, G.B.M.M.M.; Thilakarathna, B. D. K. K.; Albinsson, Ingvar; Mellander, Bengt-Erik; Bandara, T M W J

doi:10.1007/s10008-020-04846-1

Cited by 23 publications

(15 citation statements)

References 48 publications

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“…The preparation of QSSPE is similar to our previous work [2,11]. Figure 1 describes the flows of electrolyte preparation.…”

Section: Experimental 21 Electrolyte Preparationmentioning

confidence: 91%

“…The increased anionic conductivity enhances short-circuit current density (Jsc) and efficiency. On the other hand, if salts with small cations are used, the small cations can absorb the TiO2 surface and enhance the electron injection rate [9][10][11]. To have a synergistic effect of mixed cations, many researchers have used a mixture of salts with big and small cations to enhance the performance of DSSCs [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Efficiency enhancement of dye-sensitized solar cell with PVdF-HFP:MPII:NaI quasi-solid-state electrolyte

Zakaria

Saaid²,

Raffi³

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Quasi-solid-state polymer electrolyte (QSSPE) based on poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP) was prepared using sodium iodide (NaI) salt, 1-methyl-3-propylimidazolium iodide (MPII) ionic liquid, propylene carbonate (PC) and 1,2-dimethoxyethane (DME) plasticizers. This paper discusses the effects of using a binary mixture of large (MPII) and small (NaI) cation alkaline salts on enhancing the performance of DSSCs with gel polymer electrolytes. The amount of NaI was varied while the other components were kept constant to study the dependence of dye-sensitized solar cell (DSSC) performance on NaI amount. The incorporation of NaI in PVdF-HFP-MPII-PC-DME has enhanced the efficiency of DSSC. DSSC with 0.6 M MPII and 0.4 M NaI showed the highest efficiency of 4.16 % and short circuit current density (J sc) of 13.63 mAcm−2. Additionally, the roles of TBP and GuSCN as co-additives in the electrolytes were also discussed in this paper. The presence of 4-tert-butylpyridine (TBP) and guanidine thiocyanate (GuSCN) further enhanced the efficiency from 4.16 to 6.95 %.

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“…The preparation of QSSPE is similar to our previous work [2,11]. Figure 1 describes the flows of electrolyte preparation.…”

Section: Experimental 21 Electrolyte Preparationmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Efficiency enhancement of dye-sensitized solar cell with PVdF-HFP:MPII:NaI quasi-solid-state electrolyte

Zakaria

Saaid²,

Raffi³

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…In the preparation, a slurry of TiO2 nanoparticles (∽13 nm) prepared by mixing 0.5 g of TiO2 with 2 ml of (0.1M) HNO3 was spin-coated at 2300 rpm for around 2 minutes. After air-drying for ∽5 h, the prepared electrodes were sintered at 450 °C for 30 minutes 8 . The 2 nd layer was prepared using the same process, by spin coating at 1000 rpm for about 2 minutes.…”

Section: Methodsmentioning

confidence: 99%

“…The resultant dispersion was then spin-coated (1000 rpm, 2 minutes) followed by sintering at 450 °C. Then the subsequent 4 th , 5 th, , 6 th , and 7 th layers were coated by repeating the same method [8]. The prepared electrodes were immersed in a 0.5 mM N719 dye/ethanol solution for 48 h 9 .…”

Section: Methodsmentioning

confidence: 99%

Preliminary optimization of low-cost quasi solid-state dye sensitized solar cells with multilayer photoanodes, and graphite-based counter electrodes

2022

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Investigation and development of platinum free counter-electrodes are highly important in preparing low-cost Dye-Sensitized Solar Cells (DSSCs). In this study, low-cost graphite and TiO2 composite counter-electrodes are investigated along with photo-electrodes containing dye-photosensitized (N719) TiO2 multilayers (five, six, and seven layers).The highest DSSC efficiency is observed for the cells assembled using the counter-electrode that contains 80% of graphite and 20% TiO2, for all the multilayer photo-electrode series investigated. When comparing different series of multilayer photo-electrodes assembled with this optimized counter-electrode composition, the DSSC efficiency for the six-layer series is greater than the five and seven-layer electrodes. This best composition of electrodes optimizes the efficiency by fine-tuning between the charge carrier transport properties and catalytic activity of the electrode. The graphite content plays a significant role due to its catalycity. In 3 hours under irradiation, open-circuit voltage got reduced by 8.0%, while the current density and efficiency got improved by 43.2% and 7.0%, respectively, as observed for the cells with the optimum electrode combination. It can be determined that Graphite/TiO2 80%/20% counter-electrodes with sixlayer photoelectrodes optimize the performance of platinum free low-cost DSSCs.

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“…This strong peak is attributed to the band gap excitation of zinc oxide. [3] The band gap energy (Eg) of zinc oxide samples is calculated by substituting the value of the wavelength at absorption peak following equation (8). [3], where Plank constant is 4.14 x 10 -15 eVs, velocity of light is 2.99 x 10 8 ms -1 and λg is the wavelength at peak point and the results are summarized in Table 1.…”

Section: Uv-visible Analysismentioning

confidence: 99%

Comparison of ZnO nano particles synthesized using sodium hydroxide and triethylamine for photovoltaic applications

et al. 2022

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Multi-layers of TiO2 nanoparticles in the photoelectrode and binary iodides in the gel polymer electrolyte based on poly(ethylene oxide) to improve quasi solid-state dye-sensitized solar cells

Cited by 23 publications

References 48 publications

Efficiency enhancement of dye-sensitized solar cell with PVdF-HFP:MPII:NaI quasi-solid-state electrolyte

Efficiency enhancement of dye-sensitized solar cell with PVdF-HFP:MPII:NaI quasi-solid-state electrolyte

Preliminary optimization of low-cost quasi solid-state dye sensitized solar cells with multilayer photoanodes, and graphite-based counter electrodes

Comparison of ZnO nano particles synthesized using sodium hydroxide and triethylamine for photovoltaic applications

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