Investigation on the Thickness Effect of TiO&lt;sub&gt;2 &lt;/sub&gt;Photo- Anode on Dye-Sensitized Solar Cell Performance

Yeoh, Mian-En; Chan, Kah‐Yoong; Wong, H.Y.

doi:10.4028/www.scientific.net/ssp.280.76

Cited by 6 publications

(4 citation statements)

References 22 publications

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“…This phenomenon is known as the bathochromic shift (redshift). It is an effect due to which the absorption maximum is shifted towards a longer wavelength [55][56][57]. Compared to the N719 dye dissolved in ethanol (high polarity), when N719 is absorbed on the nonpolar ZnO photoanode, the bathochromic shift (redshift) occurs and can be seen clearly in the absorbance graph.…”

Section: Optical Propertiesmentioning

confidence: 99%

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Controlling the Layer Thickness of Zinc Oxide Photoanode and the Dye-Soaking Time for an Optimal-Efficiency Dye-Sensitized Solar Cell

et al. 2022

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Dye-sensitized solar cells (DSSCs) were developed by exploiting the photovoltaic effect to convert solar energy into electrical energy. The photoanode layer thickness significantly affects the semiconductor film’s ability to carry electronic charges, adsorb sensitizing dye molecules, and lower the recombination of photo-excited electrons injected into the semiconductor. This study investigated the dependence of the zinc oxide (ZnO) photoanode thin-film thickness and the film soaking time in N719 dye on the photocurrent–voltage characteristics. The ZnO photoanode was applied to glass using the doctor blade method. The thickness was varied by changing the scotch tape layers. The ZnO-based DSSC attained an efficiency of 2.77% with three-layered photoanodes soaked in the dye for three hours, compared to a maximum efficiency of 0.68% that was achieved with three cycles using the dip-coating method in other research. The layer thickness of the ZnO photoanode and its optimal adsorption time for the dye are important parameters that determine the efficiency of the DSSC. Therefore, this work provides important insights to further improve the performance of DSSCs.

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Section: Optical Propertiesmentioning

confidence: 99%

“…The calculated band-gap value is lower than the reported band-gap value (3.37 eV). This may be related to the thermal stress effects of the annealing process of the films [55]. The energy band gap of ZnO is 3.37 eV at room temperature.…”

Section: Optical Propertiesmentioning

confidence: 99%

Controlling the Layer Thickness of Zinc Oxide Photoanode and the Dye-Soaking Time for an Optimal-Efficiency Dye-Sensitized Solar Cell

et al. 2022

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“…The efficiency of a photovoltaic cell can be characterized by the measure of electrical power developed by the cell corresponding to the solar energy radiating over it. This efficiency of the cell designates how effective the photovoltaic cell is at transforming energy from solar radiation to electrical energy [18]. The extent of power generated from photovoltaic cells is influenced by not only the characteristics of light available but also the various execution properties of the cell [19].…”

Section: Solar Pv Cellmentioning

confidence: 99%

Power quality enhancement of grid-connected PV system

Mishra

Rout

Mishra

et al. 2023

IJPEDS

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<span lang="EN-US">Solar photovoltaic (PV) power, for its multiple benefits, has adhered to prominent consideration in the electrical energy generation region. The double-stage triple-phase grid-connected solar PV (SPV) system is utilized to enhance the power quality by employing a lymphoblastoid cell lines LCL filter. In this method, a DC-DC converter and DC-AC converter make a feasible juncture of the PV systems to the electrical interface. For converting boosted DC into AC, A 3-phase DC-AC converter is used, which is supplied into the grid. A 3-phase voltage converter is employed in place of an inverter for interfacing amid the voltage generated by the PV system and the grid possessing an AC transmission line. An maximum power point tracking (MPPT) application is used in this proposal to amplify the effectiveness of the PV array in face of any unsteady climatic circumstances. Hence, the highest energy could be secured out of the solar PV array and interfaced with the grid. Enhancing power quality by employing an LCL filter is quantified by FFT analysis in MATLAB. The advised proposal has attained a very low total harmonic distortion (THD), proving its efficacy. Also, the outcomes ascertain the applications of the proposed system and extend future advances of renewable energy with a great power quality improvement.</span>

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“…Multilayer TiO 2 films were utilized to improve the surface area of the photoanode, as described in [16]. However, increasing the thickness of the TiO 2 film raises the internal resistance of electron transfer in the TiO 2 photoanode [17], so various photoanode materials such as doped TiO 2 [18,19] and metal/metal oxide TiO 2 [20], were used to improve electron transport and reduce internal resistance. However, to the best of our knowledge, no research on photovoltaic performance studies on photoanodes based on bilayer structures with plasmonic composite materials of various morphologies for DSSCs has been published.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Absorption Performance of Dye-Sensitized Solar Cell with Composite Materials and Bilayer Structure of Nanorods and Nanospheres

Rehman

Ullah

Saeed

et al. 2022

Metals

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The concept of localized surface plasmon resonance has been applied to increase the absorption efficiency of dye-sensitive solar cells (DSSCs) by using various photoanode structures. A three-dimensional model for a photoanode of the DSSC based on composite materials was developed using COMSOL Multiphysics. Spherical-, rod- and triangular-shaped aluminum nanoparticles were employed in the core of SiO2 to examine the influence of morphology on the performance of DSSCs in the 350–750 nm wavelength range. The UV-Vis absorption results indicated that aluminum nanoparticles with spherical, rod and triangle morphologies had 39.5%, 36.1% and 34.6% greater absorption capability than aluminum-free nanoparticles. In addition, we investigated the effect of plasmonic absorption in DSSCs for photoanodes made of TiO2, SiO2 and bilayer TiO2/SiO2 with and without covering aluminum nanoparticles. The TiO2 and SiO2 nanoparticles had fixed diameters of 90 nm each. The UV-Vis absorption and Tauc curves indicated that the TiO2/SiO2 bilayer structure (with and without aluminum nanoparticles) had greater absorption and lower bandgap energies than individual TiO2 and SiO2 nanoparticles. Furthermore, bilayer photoanode nanostructures were investigated based on nanospheres and nanorods for core–shell Al@SiO2 nanoparticles. The results indicated that a photoanode with nanorod/nanosphere structure had a 12% better absorption capability than a nanosphere/nanorod configuration. This improvement in absorption is attributed to the high surface area, which boosts dye loading capacity and long-term light capture, resulting in greater interaction between the dye and the photon. Our study develops core–shell nanoparticles with optimized shape and materials for bilayer photoanode structures in photovoltaic technology.

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Investigation on the Thickness Effect of TiO<sub>2 </sub>Photo- Anode on Dye-Sensitized Solar Cell Performance

Cited by 6 publications

References 22 publications

Controlling the Layer Thickness of Zinc Oxide Photoanode and the Dye-Soaking Time for an Optimal-Efficiency Dye-Sensitized Solar Cell

Controlling the Layer Thickness of Zinc Oxide Photoanode and the Dye-Soaking Time for an Optimal-Efficiency Dye-Sensitized Solar Cell

Power quality enhancement of grid-connected PV system

Enhanced Absorption Performance of Dye-Sensitized Solar Cell with Composite Materials and Bilayer Structure of Nanorods and Nanospheres

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