A novel dual mechanism in dye-sensitized solar cells

Rangel, Domingo; Navarro, Jorge-Alfredo; Vargas, Susana; González, Martha Letícia Gaeta; Castaño, V. M.; Rodrı́guez, Rogelio

doi:10.1002/er.3700

Cited by 14 publications

(15 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Even though high performance has been achieved to date when ruthenium complex compounds are used as sensitizer dye adsorbed on TiO 2 , there is an important disadvantage of its usage such as high production costs . On the other hand, organic dyes yield relatively high efficiency while their long‐term stability issues and complex synthesis procedures remain serious unsolved problems .…”

Section: Introductionmentioning

confidence: 99%

St. Lucie cherry, yellow jasmine, and madder berries as novel natural sensitizers for dye‐sensitized solar cells

et al. 2019

View full text Add to dashboard Cite

Summary Natural dyes extracted from fruits, vegetables, flowers, and leaves are considered as promising alternative sensitizers to replace synthetic dyes for dye‐sensitized solar cells (DSSCs). Generally, solar activity of natural dyes stem from anthocyanin pigment. Carbonyl, carboxyl, and hydroxyl groups present in the anthocyanin molecule improve the adsorption ability of dye on TiO2 and therefore facilitate charge transfer. Here, for the first time, novel natural dyes extracted from St. Lucie cherry, yellow jasmine, and madder berries are reported to act as sensitizer in DSSCs. These novel natural dye extracts are prepared by dissolving related fruits in ethanol. The ingredient of the dyes is identified by FT‐IR spectroscopy. Accordingly, FT‐IR spectrum reveals that novel natural dye extracts exhibit all the characteristic peaks of anthocyanin pigment. Specifically, St. Lucie cherry consists of more distinct carbonyl group than other sources. Also, photoanodes composed of three TiO2 layers are prepared by using a spin‐coating method. Then, they are immersed into natural dyes and analyzed by conducting UV‐Vis spectroscopy. Compared with bare TiO2, natural dye–loaded photoanodes demonstrate far higher absorption ability in the visible region. After fabrication of devices with different novel natural dye sensitizers, current‐voltage characteristics and electrochemical impedance spectroscopy measurements are performed. The best power conversion efficiency (PCE) of 0.19% is obtained by sensitization of St. Lucie cherry with an open‐circuit voltage (Voc) of 0.56 V, short‐circuit current density (Jsc) of 181 μA cm−2, and fill factor (FF) of 0.55. Furthermore, St. Lucie cherry–sensitized devices show the lowest charge transfer and highest recombination resistances. This result can be attributed to the obvious carbonyl group exhibited by St. Lucie cherry.

show abstract

Section: Introductionmentioning

confidence: 99%

St. Lucie cherry, yellow jasmine, and madder berries as novel natural sensitizers for dye‐sensitized solar cells

et al. 2019

View full text Add to dashboard Cite

show abstract

“…1 In theory, DSSC generally possesses three main parts: photoanode, counter electrode (CE), and electrolyte. As a potential solution, there are more and more efforts to explore the solar energy.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis and promising application of iron‐doped nickel selenide nanoparticles as high‐efficiency counter electrodes of dye‐sensitized solar cells

Wei

Kang

et al. 2019

Int J Energy Res

View full text Add to dashboard Cite

The coexistence of different metal cations in single crystal structure may improve electron transfer rate and catalytic activity. Hence, a series of irondoped nickel selenide nanoparticles were engineered by adjusting the iron amount as counter electrodes (CEs) in dye-sensitized solar cells. By contrast, the as-designed iron-doped nickel selenides possess more excellent electrochemical properties than the pure nickel selenides. In particular, 10% Fe-Ni 0.85 Se achieves the lowest charge-transfer resistance and highest electrocatalytic performance, outperforming that of Pt. As expected, based on the optimal 10% Fe-Ni 0.85 Se CE, the dummy dye-sensitized solar cell yields a higher power conversion efficiency of 8.57% compared with that of 15% Fe-Ni 0.85 Se (8.33%), 5% Fe-Ni 0.85 Se (8.15%), Ni 0.85 Se (7.89%), and even Pt CEs (8.04%).How to cite this article: Wei P, Li J, Kang H, et al. Facile synthesis and promising application of iron-doped nickel selenide nanoparticles as highefficiency counter electrodes of dye-sensitized solar cells. Int J Energy Res. 2020;44;845-854.

show abstract

“…The performance of DSSCs is determined by a number of factors, but the shape and structure of the photoanode material play an important role in photoelectric conversion efficiency . A large number of research works have been conducted to study the influence of working electrode materials on device performance . However, the power output of the DSSCs to become a competitive energy source has not yet been achieved .…”

Section: Introductionmentioning

confidence: 99%

“…Dye-sensitized solar cells (DSSCs) have attracted strong research interest in recent years as a potential alternative to conventional silicon solar cells because of their cost-effectiveness and highly efficient photovoltaic energy conversion. [1][2][3] In the device operation, the dye molecules absorb the incoming sunlight and excite electrons from the highest occupied molecular orbital (HOMO) to the lowest unoccupied molecular orbital (LUMO), the electrons then being injected into the photoanode. These injected electrons percolate through the photoanode film and reach the counter electrode.…”

Section: Introductionmentioning

confidence: 99%

“…7 A large number of research works have been conducted to study the influence of working electrode materials on device performance. 2,8 However, the power output of the DSSCs to become a competitive energy source has not yet been achieved. 1 In this context, density functional theory (DFT) calculations are important to understand the interaction and electron injection process of the dye on photoanode materials.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Soft‐template synthesis of high surface area mesoporous titanium dioxide for dye‐sensitized solar cells

et al. 2018

View full text Add to dashboard Cite

Summary In the present work, 10 to 14 nm titania nanoparticles with high‐packing density are synthesized by the soft‐template method using a range of cationic surfactants including cetyl trimethylammonium bromide (CTAB), Sodium dodecyl sulfate (SDS), and dodecyl trimethylammonium bromide (DTAB). The synthesized nanoparticles are used as a photoanode material in dye solar cells. Density functional theory (DFT) simulations reproduce our experimental results of charge transfer and strong interaction between the TiO2 and N719. N719‐TiO2 complex establishes strong electrostatic bonding through H of the dye with the O of TiO2 surface. Solar cell efficiency of 6.08% with 12.63 mA/cm2, 793 mV, and 48.5% for short circuit current density, open circuit voltage, and fill factor, respectively, are obtained under 1 sun illumination for the dye‐sensitized solar cell (DSSC) using a film of mesoporous TiO2 synthesized from the SDS surfactant. On the other hand, the 21 nm commercial TiO2 powder (P25) device results in 4.60% efficiency under similar conditions. Electrochemical impedance spectroscopic studies show that the SDS device has lesser charge transport resistance than the other devices because of its higher surface area, packing density, and dye loading capacity. Our results show that employing high packing density‐based TiO2 nanoparticles represents a commercially viable approach for highly beneficial photoanode development for future DSSC applications.

show abstract

A novel dual mechanism in dye-sensitized solar cells

Cited by 14 publications

References 18 publications

St. Lucie cherry, yellow jasmine, and madder berries as novel natural sensitizers for dye‐sensitized solar cells

St. Lucie cherry, yellow jasmine, and madder berries as novel natural sensitizers for dye‐sensitized solar cells

Facile synthesis and promising application of iron‐doped nickel selenide nanoparticles as high‐efficiency counter electrodes of dye‐sensitized solar cells

Soft‐template synthesis of high surface area mesoporous titanium dioxide for dye‐sensitized solar cells

Contact Info

Product

Resources

About