Samarium Ions Doped Titania Photoelectrodes for Efficiency Influence of Dye-Sensitized Solar Cells

Zhang, Zige; Cui, Zijian; Zhang, Kaiyue; Feng, Yaqing; Meng, Shuxian

doi:10.1149/2.0371605jes

Cited by 11 publications

(2 citation statements)

References 46 publications

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“…[39,40] However, the characteristic diffraction peak intensity of TiO 2 decreased slightly with Sm doping, indicating that Sm had retarded the development of anatase TiO 2 grains. [41,42] The characteristic peaks of CN were observed in the XRD patterns of the TiO 2 /g-C 3 N 4 and Sm-TiO 2 /g-C 3 N 4 composites, indicating that CN exhibited better dispersibility in the composites. [43] Compared with Sm-TiO 2 , the XRD peak intensity of Sm-TiO 2 / g-C 3 N 4 was lower and the peak was wider, indicating that there is an interaction between Sm-TiO 2 and g-C 3 N 4 in the composite.…”

Section: Xrd Analysismentioning

confidence: 99%

Synthesis and properties of Sm‐TiO₂ coupled with g‐C₃N₄ for improved photocatalytic degradation toward methylene blue and tetracycline under visible‐light irradiation

Cui

Zhang

Yan

et al. 2022

Applied Organom Chemis

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Owing to the great harm that water pollution has caused to the natural environment, the effective treatment of sewage is crucial. In this study, Sm-TiO 2 /g-C 3 N 4 composites were synthesized for the degradation of MB and TC pollutants. The experimental results showed that up to 91.8% and 93.3% of MB and TC pollutants were removed within 120 min of illumination, which were 2.8 and 2.3 times greater than that of pure TiO 2 , respectively, showing the good optical properties of the composites. Due to the coupling between Sm-TiO 2 and g-C 3 N 4 , the separation of photogenerated electron holes is accelerated, thereby enhancing the photocatalytic activity of the composites. This not only enabled the strong redox ability of TiO 2 to be retained, but also effectively promoted electron migration, thus improving the photocatalytic activity of the composites.

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Section: Xrd Analysismentioning

confidence: 99%

Synthesis and properties of Sm‐TiO₂ coupled with g‐C₃N₄ for improved photocatalytic degradation toward methylene blue and tetracycline under visible‐light irradiation

Cui

Zhang

Yan

et al. 2022

Applied Organom Chemis

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“…[6][7][8] In order to overcome the insufficiency of wide bandgap and the fast recombination of photo-induced charges, a variety of methods have been brought up by the researchers. 9,10 In the past decades, a number of studies have been conducted to speed up electronic transfer, promote the electron-hole separation and enlarge spectral response of the photoelectrical active TiO 2 . As a result, the nanocrystallized film photoelectrode should be optimized for minimizing the loss of injected electrons during the transfer process.…”

mentioning

confidence: 99%

The Application of Heterostructured SrTiO₃-TiO₂Nanotube Arrays in Dye-Sensitized Solar Cells

Sun

Hong

Zang

et al. 2017

J. Electrochem. Soc.

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Heterostructured SrTiO 3 -TiO 2 nanotube arrays (ST-TNTAs) on fluoride doped SnO 2 conductive glass (FTO) were synthesized through a three-step in-situ hydrothermal reaction. TiO 2 nanotubes in ST-TNTAs vertically grew on the FTO substrate in single crystallized rutile phase, while SrTiO 3 grains in cubic perovskite phase dispersed evenly on the surface of TiO 2 . The sandwich shaped all-solid-state dye-sensitized solar cells (DSSCs) were assembled with TiO 2 nanorods, nanotubes and ST-TNTAs as the photoanode, respectively. Once SrTiO 3 deposited, the position of Fermi level of the composited semiconductor raised, resulting in the increase of open circuit voltage (V OC ). Meanwhile, both short-circuit current density (J SC ) and photoelectrical conversion efficiency (η) increased first and then decreased with the amount of SrTiO 3 . In comparison to TiO 2 nanorods and nanotubes, ST-TNTAs demonstrated the highest photoelectrical conversion efficiency (5.42%) under the irradiation of solar simulator and external quantum efficiency (EQE) at visible region, and also the lowest electron transfer resistance, which further proved that SrTiO 3 acted as a good medium for electron transfer between TiO 2 and photosensitizer. As a result, both the increased surface area of the nanotube relative to the nanorod and the matched bandgap structure in the composited structure of TiO 2 and SrTiO 3 improve the performance of the DSSCs. Along with rising energy and environmental problems, the demand of energy is growing all the time. As a renewable green energy, the use and transformation of solar energy has become a popular research field. [1][2][3]4 Compared with traditional semiconductor solar cells, the most obvious difference of dye-sensitized solar cells (DSSCs) is that light absorption and carrier transfer in DSSCs are completed by different materials, and the biggest advantage is that it is accomplished to conduct charges by the transfer of majority carriers.5 Two types of nanocrystalline solar cells represented by DSSCs and quantum dots sensitized cells (QDSCs) are mainly used and studied, in which TiO 2 usually acts as the best photoanode material for it is clean, efficient and stable. [6][7][8] In order to overcome the insufficiency of wide bandgap and the fast recombination of photo-induced charges, a variety of methods have been brought up by the researchers. 9,10 In the past decades, a number of studies have been conducted to speed up electronic transfer, promote the electron-hole separation and enlarge spectral response of the photoelectrical active TiO 2 . As a result, the nanocrystallized film photoelectrode should be optimized for minimizing the loss of injected electrons during the transfer process.11,12 As it is known, the photoelectrode with orderly structure is conducive to the separation and transfer of the photo-induced charges and the growth of oriented nano material is also relatively easy to control, which is therefore expected to further enhance short circuit current as well as photoelectrical conversion ...

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Luminescent Spectral Conversion to Improve the Performance of Dye‐Sensitized Solar Cells

2017

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Relative to the broadband solar spectrum, a narrow range of spectral absorption of photovoltaic (PV) devices is considered an important determinant that the efficiency of light harvesting of these devices is less than unity. Having the narrowest spectral response to solar radiation among all PV devices, dye-sensitized solar cells (DSSCs) suffer severely from this loss. Luminescent spectral conversion provides a mechanism to manipulate and to adapt the incident solar spectrum by converting, through photoluminescence, the energies of solar photons into those that are more effectively captured by a PV device. This mechanism is particularly helpful for DSSCs because there is much flexibility in both the choice of the light-harvesting materials and the architecture of the DSSC. Here we review and discuss recent advances in the field of luminescent spectral conversion for DSSCs. The focus is on the architectural design of DSSCs, and the complications, advantages and new functionalities offered by each of their configurations are discussed. The loss mechanisms are examined and important parameters governing the spectral conversion mechanism of a DSSC are introduced.

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Samarium Ions Doped Titania Photoelectrodes for Efficiency Influence of Dye-Sensitized Solar Cells

Cited by 11 publications

References 46 publications

Synthesis and properties of Sm‐TiO₂ coupled with g‐C₃N₄ for improved photocatalytic degradation toward methylene blue and tetracycline under visible‐light irradiation

Synthesis and properties of Sm‐TiO₂ coupled with g‐C₃N₄ for improved photocatalytic degradation toward methylene blue and tetracycline under visible‐light irradiation

The Application of Heterostructured SrTiO₃-TiO₂Nanotube Arrays in Dye-Sensitized Solar Cells

Luminescent Spectral Conversion to Improve the Performance of Dye‐Sensitized Solar Cells

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Samarium Ions Doped Titania Photoelectrodes for Efficiency Influence of Dye-Sensitized Solar Cells

Cited by 11 publications

References 46 publications

Synthesis and properties of Sm‐TiO2 coupled with g‐C3N4 for improved photocatalytic degradation toward methylene blue and tetracycline under visible‐light irradiation

Synthesis and properties of Sm‐TiO2 coupled with g‐C3N4 for improved photocatalytic degradation toward methylene blue and tetracycline under visible‐light irradiation

The Application of Heterostructured SrTiO3-TiO2Nanotube Arrays in Dye-Sensitized Solar Cells

Luminescent Spectral Conversion to Improve the Performance of Dye‐Sensitized Solar Cells

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Product

Resources

About

Synthesis and properties of Sm‐TiO₂ coupled with g‐C₃N₄ for improved photocatalytic degradation toward methylene blue and tetracycline under visible‐light irradiation

Synthesis and properties of Sm‐TiO₂ coupled with g‐C₃N₄ for improved photocatalytic degradation toward methylene blue and tetracycline under visible‐light irradiation

The Application of Heterostructured SrTiO₃-TiO₂Nanotube Arrays in Dye-Sensitized Solar Cells