Highly efficient (N-benzothiazolyl)-cyanoacetamide based co-sensitizers for high efficiency dye-sensitized solar cells

Badawy, Safa A.; Su, Rui; Fadda, Ahmed A.; Abdel‐Latif, Ehab; El‐Shafei, Ahmed; Elmorsy, Mohamed R.

doi:10.1016/j.ijleo.2021.168274

Cited by 15 publications

(3 citation statements)

References 33 publications

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“…One approach to enhance the performance of photochemical cells is broadening their absorption spectra, which allows them to capture more sunlight and convert it into useful energy. This can be achieved by designing novel photosensitizers with extended absorption profiles, employing multiple photosensitizers with complementary absorption spectra, or introducing additional light-harvesting materials into the system [ 48 , 49 , 50 , 51 ]. For example, Cheema et al [ 52 ] synthesized and characterized seven organic sensitizers, employing thienopyrazine (TPz) as a π-bridge in a double donor, double acceptor organic dye design (see Figure 2 ).…”

Section: Photoelectrochemical Cellsmentioning

confidence: 99%

Artificial Photosynthesis: Current Advancements and Future Prospects

et al. 2023

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Artificial photosynthesis is a technology with immense potential that aims to emulate the natural photosynthetic process. The process of natural photosynthesis involves the conversion of solar energy into chemical energy, which is stored in organic compounds. Catalysis is an essential aspect of artificial photosynthesis, as it facilitates the reactions that convert solar energy into chemical energy. In this review, we aim to provide an extensive overview of recent developments in the field of artificial photosynthesis by catalysis. We will discuss the various catalyst types used in artificial photosynthesis, including homogeneous catalysts, heterogeneous catalysts, and biocatalysts. Additionally, we will explore the different strategies employed to enhance the efficiency and selectivity of catalytic reactions, such as the utilization of nanomaterials, photoelectrochemical cells, and molecular engineering. Lastly, we will examine the challenges and opportunities of this technology as well as its potential applications in areas such as renewable energy, carbon capture and utilization, and sustainable agriculture. This review aims to provide a comprehensive and critical analysis of state-of-the-art methods in artificial photosynthesis by catalysis, as well as to identify key research directions for future advancements in this field.

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Section: Photoelectrochemical Cellsmentioning

confidence: 99%

Artificial Photosynthesis: Current Advancements and Future Prospects

et al. 2023

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“…Senadeera et al 64 used Eosin‐Y and Rose Bengal dyes for the co‐sensitization and got the highest efficiency of 2.09%. As co‐sensitizers for HD‐2 in DSSCs, four new (N‐benzothiazolyl)‐cyanoacetamide‐based sensitizers were developed by Badawy et al 65 and got the highest efficiency of 8.27% for SA20 + HD‐2 based device.…”

Section: Introductionmentioning

confidence: 99%

The improved performance of dye‐sensitized solar cells using co‐sensitization and polymer gel electrolyte

Selvakumar

2022

Intl J of Energy Research

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To investigate the photovoltaic capabilities as a sensitizer and co-sensitizer for dye-sensitized solar cells (DSSCs), a new metal-free organic dye (CDIB) was synthesized. In addition, different concentrations of 1-n-hexyl-3-methylimidazolium iodide ionic liquid (IL) doped poly(vinylidene fluoride-hexafluoropropylene) gel polymer electrolytes are prepared and the high conductive electrolyte is used to fabricate the devices. The device having CDIB sensitizer and IL-15% electrolyte showed an efficiency of 1.86%. Further, the effect of CDIB co-sensitization on Z907 is examined. Consequently, the power conversion efficiency of DSSC with co-sensitized dye is raised by 23.29%, from 4.55 to 5.61%, when compared to DSSCs with individual dyes. This improvement is mostly due to an increase in a short-circuit current density and open-circuit voltage. Highlights• Co-sensitization is being used to enhance the performance of DSSCs.• Poly(vinylidene fluoride-hexafluoropropylene)-based gel polymer electrolytes doped with different amounts of 1-n-hexyl-3-methylimidazolium iodide were prepared for improving the conductivity of electrolyte.• A co-sensitized DSSC has an efficiency of 5.61%.• With co-sensitization, both V OC and J SC increased significantly.

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“…Furthermore, a wellknown substance with a non-planar architecture that exhibits a stiff plane [24], three-dimensional steric, a hole transporting characteristic, light-harvesting features and decreased aggregation on semiconductor surfaces (TiO 2 ) [25]. To improve DSSC photovoltaic efficiency, photosensitizers are required to have bathochromic shifts by introducing donating groups (alkoxy, alkyl) and aromatic groups to TPA that increase the HOMO energy orbital level [26] or introducing different anchoring groups (CN, CO and NH) that facilitate the electron injection from the donor moiety into the photoanode and decrease charge aggregation of the dye on TiO 2 [27][28][29][30][31][32]. To improve the binding strength of dyes on TiO 2 , the incorporation of double electron-accepting groups into the organic donor structure to generate a double-anchored compound has been suggested, which exhibited higher device efficiency than single D-π-A dyes [33][34][35][36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Novel Triphenylamine-Based Organic Dyes with Dual Anchors for Efficient Dye-Sensitized Solar Cells

et al. 2022

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A new series of metal-free organic dyes (SM1-5) with dual anchors are synthesized for application in dye-sensitized solar cells (DSSC). Here, a simple triphenylamine (TPA) moiety serves as the electron donor, while di-cyanoacrylamide and di-thiazolidine-5-one units serve as the electron acceptors and anchoring groups. To understand the effect of dye structure on the photovoltaic characteristics of DSSCs, the photophysical and electrochemical properties, as well as molecular geometries calculated from density functional theory (DFT), are used for dyes SM1-5. The extinction coefficients of the organic dyes SM1-5 are high (5.36–9.54 104 M−1 cm−1), indicating a high aptitude for light harvesting. The photovoltaic studies indicated that using dye SM4 as a sensitizer showed a power conversion efficiency (PCE) of 6.09% (JSC = 14.13 mA cm−2, VOC = 0.624 V, FF = 68.89%). Interestingly, SM4 showed the highest values of VOC among all dyes, including N-719, due to its maximum dye coverage on the TiO2 surface, enhancing charge recombination resistance in the sensitized cell. The good agreement between the theoretically and experimentally obtained data indicates that the energy functional and basis set employed in this study can be successfully utilized to predict new photosensitizers' absorption spectra with great precision before synthesis. Also, these results show that bi-anchoring molecules have a lot of potentials to improve the overall performance of dye-sensitized solar cells.

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Highly efficient (N-benzothiazolyl)-cyanoacetamide based co-sensitizers for high efficiency dye-sensitized solar cells

Cited by 15 publications

References 33 publications

Artificial Photosynthesis: Current Advancements and Future Prospects

Artificial Photosynthesis: Current Advancements and Future Prospects

The improved performance of dye‐sensitized solar cells using co‐sensitization and polymer gel electrolyte

Synthesis of Novel Triphenylamine-Based Organic Dyes with Dual Anchors for Efficient Dye-Sensitized Solar Cells

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