Performance improvement of dye-sensitized solar cell by introducing Sm3+/Y3+ co-doped TiO2 film as an efficient blocking layer

Qin, Yiying; Hu, Zhi‐Qiang; Lim, Boon-Han; Yang, Bin; Chong, Kok‐Keong; Chang, Wen-Kuei; Zhang, Putao; Zhang, Haitao

doi:10.1016/j.tsf.2017.03.042

Cited by 13 publications

(3 citation statements)

References 31 publications

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“…The bare TiO 2 sample indicates the formation of anatase phase of TiO 2 with tetragonal structure [33]. The anatase structure is made up of corner (vertice) sharing octahedral units within the tetragonal structure [30]. The TiO 2 occurs in three different crystal modifications namely rutile, anatase and brookite, all of which comprises of two complementary Ti x O y building blocks as networks of edgeand/or corner-linked distorted TiO 6 octahedron building blocks [34].…”

Section: Structural and Morphological Propertiesmentioning

confidence: 99%

“…doped TiO 2 photoanode reached 16.71 mA/cm 2 , enhancing approximately 25.07% when compared to that of the cell based on pure TiO 2 photoelectrode. The Sm and Y ions are responsible for expanding the photo-response region of TiO 2 via down conversion effect to convert the UV light into visible light, to enhance the photovoltaic performance of DSSCs [30]. The Sm 3?…”

Section: Introductionmentioning

confidence: 99%

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Analysis on down converting Sm3+-incorporated TiO2 mesoporous nanostructures for DSSC applications

Yogeswari

Sivaraj

Somasundaram

et al. 2021

J Mater Sci: Mater Electron

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The Dye Sensitized Solar Cells (DSSCs) gaining scientific interest due to its immense property of increased photoelectric conversion efficiency. It may be deficient in the effective utilization of the UV and NIR component of the solar spectrum. The inimitable Titanium dioxide (TiO 2 ) nanostructures have been highly admired as a significant photoanode material for Dye Sensitized Solar Cells. In this study, the effective down conversion ability of the lanthanide Sm 3? incorporated TiO 2 nanoparticles has been elucidated by the structural, morphological and optical analysis of the bare and doped samples prepared via modified sol-gel method. The anatase phase of the bare TiO 2 exhibits a gradual change to the orthorhombic brookite phase in Sm3? incorporated sample. The mesoporous nanoparticulates of the Sm 3? incorporated TiO 2 shows a lower binding energy than the undoped sample. The PL analysis demonstrates that the Sm 3? doping converts the UV absorption to three strong orange-red emission lines (580, 613 and 665 nm) along with the broad host emission peak of TiO 2 at 435 nm, which can be directly synchronized with the absorption wavelengths of N719 dye. The rare earth Sm 3? ion substitution in the bare TiO 2 is an effective strategy on the enhancement of photo catalytic activity of TiO 2 nanostructure by the additional UV energy harvesting from the solar spectra.

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Section: Structural and Morphological Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis on down converting Sm3+-incorporated TiO2 mesoporous nanostructures for DSSC applications

Yogeswari

Sivaraj

Somasundaram

et al. 2021

J Mater Sci: Mater Electron

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show abstract

“…Perovskite-type titanates with the general formula MTiO 3 (M is a alkali earth or transition metals) have attracted much attention for the important technological applications in the electronics industry, due to their excellent inherent chemical and physical properties such as photoelectricity, photorefractivity, ferroelectricity, as well as high dielectric constant [1][2][3]. Particularly, Zinc titanate ZnTiO 3 nanostructures have been an active area of research because of their remarkable electrical properties leading to the wide practical applications in microwave resonator, gas sensors, microelectronics and photocatalytic [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Structural and optical properties of wet-chemistry Cu co-doped ZnTiO3 thin films deposited by spin coating method

2018

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Z n 1-x TiO 3 :xCu (x=0%, 1%, 5%) thin films were prepared on glass and quartz substrates via the sol-gel method (wet-chemistry) and spin coating process. Structural and optical properties of the prepared films have been characterized by X-ray diffraction, field emission scanning electron microscope and UV-visible spectrophotometer. The doping of the thin films by different concentration of Cu ions exhibited change in structure from cubic to hexagonal system. The average crystalline size was calculated from X-ray line broadening and it is decreased from 21.88 nm (ZnTiO 3) to 11.21 nm (Zn 0.95 Cu 0.05 TiO 3). The fundamental optical constants of the thin films (refractive index, absorption coefficient, extinction coefficient, dielectric constant, band gap) were determined using the UV-Vis reflectance and transmittance spectroscopy. The analysis of the optical absorption data revealed that undoped film has indirect transition (E g = 3.22 eV) and the Cu-doped films have direct allowed transition with band gap energy increased to 3.96 eV.

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A Review on the Applicability of Luminescent Phosphors and Effective Positioning in Dye‐Sensitized Solar Cells for Enhanced Performance and Stability

Muthu,

Gandhi,

Meenakshisundaram

et al. 2023

Solar RRL

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The narrow range of solar light absorption facilitated by the photoactive organic dyes has been restricting the significant development, and large‐scale applications of dye‐sensitized solar cells (DSSC). The major problem that limits the power conversion efficiency (PCE) of DSSC is the limitations of the organic dyes (light absorbers in DSSC) to absorb beyond the visible region of solar spectrum that resulting in lower PCE (≈13%) as compared with the commercialized technologies. Hence, the focus on developing efficient strategies to harvest the ultraviolet and infrared light regions of the solar spectrum and effective conversion into the absorption limit of dyes and thereby increasing the device performance and stability is the emerging technological development in DSSCs. Rare earth ion‐doped upconversion (UC) and downconversion (DC) phosphors are the most promising solutions for the prevalent issues of the liquid junction solar cells. This review will focus on the emerging strategies for the PCE enhancement of DSSC with UC and DC materials. An exclusive review on the facile approach of simultaneous usage of both the UC and DC phosphors and the effective positioning of these spectral conversion phosphors, to achieve highly stable DSSCs with superior PCE is provided.

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Performance improvement of dye-sensitized solar cell by introducing Sm3+/Y3+ co-doped TiO2 film as an efficient blocking layer

Cited by 13 publications

References 31 publications

Analysis on down converting Sm3+-incorporated TiO2 mesoporous nanostructures for DSSC applications

Analysis on down converting Sm3+-incorporated TiO2 mesoporous nanostructures for DSSC applications

Structural and optical properties of wet-chemistry Cu co-doped ZnTiO3 thin films deposited by spin coating method

A Review on the Applicability of Luminescent Phosphors and Effective Positioning in Dye‐Sensitized Solar Cells for Enhanced Performance and Stability

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