Effect of thienyl units in cyanoacrylic acid derivatives toward dye-sensitized solar cells

Kula, Sławomir; Szłapa-Kula, Agata; Fabiańczyk, Aleksandra; Gnida, Paweł; Libera, Marcin; Bujak, Karolina; Siwy, Mariola; Schab‐Balcerzak, Ewa

doi:10.1016/j.jphotobiol.2019.111555

Cited by 11 publications

(14 citation statements)

References 56 publications

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“…The λ max of ICT of 2a is bathochromically shifted (16 nm), and the band is broader and in a visible range compared to 1a . Usually, the increase in cyanoacrylic acid groups shifts the absorption range to a lower energy [ 23 , 25 ]. In this case, the effect of the number of cyanoacrylic acid units on the electronic absorption range is weakly pronounced.…”

Section: Resultsmentioning

confidence: 99%

“…Very important at the design level are the properties that the new dye should exhibit, including good solubility in solvents, wide absorption range of sunlight, high molar coefficient, resistance to photodegradation and photocorrosion, thermal and electrochemical stability, and appropriate alignment of the frontier molecular orbital energy levels [ 17 , 18 , 19 , 20 , 21 , 22 ]. It was found that co-sensitization using two or more sensitizers is an effective approach to achieve highlight harvesting efficiency [ 23 , 24 ]. Two groups of DSSC can be specified.…”

Section: Introductionmentioning

confidence: 99%

“…Two groups of DSSC can be specified. The first one is based on two dyes, one of which is a new metal-free dye, and the other is a commercial metal-containing sensitizer, which is often Ru (e.g., N719, N3, HD-2) [ 7 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 ]. It is worth noting that these PV cells exhibit higher efficiencies than devices containing only commercial dye in most cases.…”

Section: Introductionmentioning

confidence: 99%

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New Benzo[h]quinolin-10-ol Derivatives as Co-sensitizers for DSSCs

et al. 2021

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New benzo[h]quinolin-10-ol derivatives with one or two 2-cyanoacrylic acid units were synthesized with a good yield in a one-step condensation reaction. Chemical structure and purity were confirmed using NMR spectroscopy and elemental analysis, respectively. The investigation of their thermal, electrochemical and optical properties was carried out based on differential scanning calorimetry, cyclic voltammetry, electronic absorption and photoluminescence measurements. The analysis of the optical, electrochemical and properties was supported by density functional theory studies. The synthesized molecules were applied in dye-sensitized solar cells as sensitizers and co-sensitizers with commercial N719. The thickness and surface morphology of prepared photoanodes was studied using optical, scanning electron and atomic force microscopes. Due to the utilization of benzo[h]quinolin-10-ol derivatives as co-sensitizers, the better photovoltaic performance of fabricated devices compared to a reference cell based on a neat N719 was demonstrated. Additionally, the effect of co-adsorbent chemical structure (cholic acid, deoxycholic acid and chenodeoxycholic acid) on DSSC efficiency was explained based on the density functional theory.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New Benzo[h]quinolin-10-ol Derivatives as Co-sensitizers for DSSCs

et al. 2021

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“…The development of new photoanodes with increased dye absorption and charge transfer, while at the same time extending the absorption of incident photons and injection of electrons into the semiconductor conduction band, is the way to obtain the highest efficiency of DSSC systems [ 45 ]. Currently, from the point of view of used dyes, the DSSCs can be categorized as based on metal-containing sensitizer (usually commercial, such as N3, N719, N749 based on Ru or YD2 with Zn [ 46 , 47 , 48 ]) and based on newly developed metal-free dye [ 49 , 50 , 51 , 52 , 53 , 54 , 55 ].…”

Section: Introductionmentioning

confidence: 99%

Impact of TiO2 Nanostructures on Dye-Sensitized Solar Cells Performance

et al. 2021

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The effect of TiO2 nanostructures such as nanoparticles, nanowires, nanotubes on photoanode properties, and dye-sensitized solar cells photovoltaic parameters were studied. The series of dye-sensitized solar cells based on two dyes, that is, commercially N719 and synthesized 3,7′-bis(2-cyano-1-acrylic acid)-10-ethyl-phenothiazine were tested. Additionally, the devices containing a mixture of this sensitizer and chenodeoxycholic acid as co-adsorbent were fabricated. The amount of adsorbed dye molecules to TiO2 was evaluated. The prepared photoanodes with different TiO2 nanostructures were investigated using UV-Vis spectroscopy, optical, atomic force, and scanning electron microscopes. Photovoltaic response of constructed devices was examined based on current-voltage characteristics and electrochemical impedance spectroscopy measurements. It was found that the highest UV-Vis absorption exhibited the photoanode with nanotubes addition. This indicates the highest number of sensitizer molecules anchored to the titanium dioxide photoanode, which was subsequently confirmed by dye-loading tests. The highest power conversion efficiency was (6.97%) for solar cell containing nanotubes and a mixture of the dyes with a co-adsorbent.

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“…The viable separation between the porphyrin center and the TiO2 surface has key significance in cell efficiencies [3]. Slawomir Kula observed that the photovoltaic gadgets dependent on TiO2 sharpened with the acquired particles showed low control transformation efficiency, which was the most noteworthy for the gadget containing the balanced atom with bithiophene structure [4].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Dye Synthesized Solar Cell using Artificial Neural Network

Kharade¹,

Kamat²,

Kharade³

2019

IJEAT

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The primary goal of present examination is to foresee every day worldwide solar cell efficiency in view of meteorological factors, utilizing distinctive counterfeit neural system (ANN) procedures. In the present examination we report the impact of Dye Synthesized solar cell. A three-layer artificial neural network (ANN) model was developed to predict the efficiency of Dye Synthesized solar cell based on 100 experimental sets. In the present examination we report the impact of Dye Synthesized solar cell. The effect of operational parameters such as short circuit current (Jsc),Open circuit voltage(Voc),Fill factor(FF) were studied to optimize the conditions to check the efficiency of Dye Synthesized solar cell. Experimental results showed that the ANN model was able to predict adsorption efficiency with a tangent sigmoid transfer function (tansig) at hidden layer with 20 neurons and a linear transfer function (purelin) at output layer. The Levenberg–Marquardt algorithm (LMA) was used with a minimum mean squared error (MSE) of 0.00350141. The linear regression between the network outputs and the corresponding targets were proven to be satisfactory with a correlation coefficient of about 0.9993 for six model variables used in this study

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Effect of thienyl units in cyanoacrylic acid derivatives toward dye-sensitized solar cells

Cited by 11 publications

References 56 publications

New Benzo[h]quinolin-10-ol Derivatives as Co-sensitizers for DSSCs

New Benzo[h]quinolin-10-ol Derivatives as Co-sensitizers for DSSCs

Impact of TiO2 Nanostructures on Dye-Sensitized Solar Cells Performance

Simulation of Dye Synthesized Solar Cell using Artificial Neural Network

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