Performance evaluation of DSSC’s fabricated employing TiO2 and TiO2-ZnO nanocomposite as the photoanodes

Deepa, H A; Madhu, G. M.; Venkatesham, V.

doi:10.1016/j.matpr.2020.09.711

Cited by 13 publications

(11 citation statements)

References 24 publications

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“…When the crystallite is large, more dye time can create aggregates that hinder the flow of excited electrons through the cell. The formation of agglomerates can increase the resistance to electron mobility, lowering the J sc values [44].…”

Section: Resultsmentioning

confidence: 99%

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Synthesis of TiO2/ZnO photoanodes on FTO conductive glass for photovoltaic applications

et al. 2023

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For oxide semiconductors for application in dye-sensitized solar cells (DSSCs), titanium dioxide conjugated with zinc oxide thin films was synthesized and characterized. The UV (ultraviolet) spectrum characterization showed a peak of absorbance at around 355 nm, with a band gap of 3.25 eV and reflectance around 85%. Such characteristics allowed the fabrication of DSSCs with N719 dye, under simulated light of 100 mW/cm 2 . The highest efficiency of 1.17% was at 5% titanium dioxide and 4 h of dye immersion.

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Section: Resultsmentioning

confidence: 99%

“…1.17 This work 0.70 [27] 0.89 [15] 0.53 [28] 2.38 [44] 7.56 [17] complete evaporation of the liquid (water), without any additives at room temperature and with no auxiliary or additional devices. This method proved, by analysis such as X-ray diffraction, SEM, absorbance, and band gap, the formation of nanocrystalline-type wurtzite ZnO.…”

Section: Discussionmentioning

confidence: 99%

Synthesis of TiO2/ZnO photoanodes on FTO conductive glass for photovoltaic applications

et al. 2023

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“…As the result of this agglomeration, the efficiency produced by DSSC is not good enough because of the resistance to electron mobility. Therefore, the value of the voltage and current density becomes smaller due to this agglomeration [15].…”

Section: B Morphology Of the Zno-tio2 Paste Layermentioning

confidence: 99%

Dye Sensitized Solar Cell (DSSC) Efficiency Derived from Natural Source

Maulana¹,

Yuniarti²,

Nurlaela³

et al. 2021

J. Fis. dan Apl.

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Dye Sensitized Solar Cell (DSSC) with natural dye from Leunca fruit (Solanum Nigrym L) and Jamblang fruit (Syzygium Cumini L) extract as sensitizer has been created. This DSSC is composed of ZnO doping TiO2 using milling tool for 30 minutes which would be used as photoelectrodes. This study used two natural dyes which are Leunca and Jamblang fruit. The characterizations were performed to examine crystal structure of ZnO-TiO2 with XRD, to measure ZnO-TiO2 particle size with SEM, to examine optical properties from the dye using UV-Vis spectrophotometer, and to run an electrical test to find the efficiency from DSSC. The results indicate that the use of Jamblang fruit as sensitizer is better than Leunca fruit. This is because Jamblang fruit extract has light absorption area on the range of 250 -800 nm which is higher absorbance than that of Leunca fruit. In addition, the milling time applied was found to be not long enough to produce semiconductor with smaller crystal size. The electrical test result shows Jamblang fruit based DSSC performance is better than Leunca fruit. The maximum power output values are 4.01 x 10 −8 Watt with the efficiency of 22.57 x 10 −4 % and 2.16 x 10 −7 Watt with efficiency of 6.02 x 10 −4 % when radiated with Halogen lamp and sunlight, respectively. Aside from the fact that the preparation technique is relatively easy, natural dye material can be found abundantly in nature and its price is also cheap, hence this study is very promising. However, several changes are needed to gain better results. The brief of this research is to develop alternative energy from solar energy, so that its use can be maximized as environmentally-friendly energy source.

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“…There are many ways to prepare TiO 2 and ZnO composites, such as hydrothermal method [28][29][30], chemical vapor deposition method [31,32], solution sol technology [33], solution combustion approach [34], and hot pressing method [35]. Among them, electrospinning is a simple method which can control the fiber shape, has reasonable cost, and can be used for large-scale production [36].…”

Section: Introductionmentioning

confidence: 99%

Photoelectric Performance Optimization of Dye‐Sensitized Solar Cells Based on ZnO‐TiO₂ Composite Nanofibers

Chang

Han

et al. 2022

Journal of Nanomaterials

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As the electron transport layer of dye-sensitized solar cells (DSSCs), the photoanode is an important component that affects photoelectric conversion efficiency (PCE). The commonly used material titanium dioxide (TiO2) is difficult to prepare as nanostructures with large specific surface area, which affects dye loading and electrolyte diffusion. Herein, TiO2 nanofibers and ZnO-TiO2 composite nanofibers with different molar ratios are synthesized by electrospinning technology. The above nanofibers are coated on photoanodes by the doctor blade method to assemble DSSCs. The influence of the composite ratio of ZnO-TiO2 composite nanofibers on the photoelectric performance of the assembled DSSCs is explored. The ZnO-TiO2 composite nanofibers with a molar ratio of 1 : 2 have large specific surface area and porosity and have the smallest charge transfer resistance at the photoanode-electrolyte interface. The PCE of the nanofiber-modified DSSCs reaches a maximum of 3.66%, which is 56% higher than that of the TiO2 nanofiber-modified DSSCs. The photovoltaic parameters such as open circuit voltage (VOC), current density (JSC), and fill factor (FF) are 0.58 V, 10.36 mA/cm2, and 0.61, respectively. Proper compounding of zinc oxide (ZnO) can not only make the nanofibers absorb more dyes and enhance the light-harvesting ability but also improve the diffusion of the electrolyte and enhance the electron transport, thus successfully improving the power conversion efficiency of DSSCs.

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Performance evaluation of DSSC’s fabricated employing TiO2 and TiO2-ZnO nanocomposite as the photoanodes

Cited by 13 publications

References 24 publications

Synthesis of TiO2/ZnO photoanodes on FTO conductive glass for photovoltaic applications

Synthesis of TiO2/ZnO photoanodes on FTO conductive glass for photovoltaic applications

Dye Sensitized Solar Cell (DSSC) Efficiency Derived from Natural Source

Photoelectric Performance Optimization of Dye‐Sensitized Solar Cells Based on ZnO‐TiO₂ Composite Nanofibers

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Performance evaluation of DSSC’s fabricated employing TiO2 and TiO2-ZnO nanocomposite as the photoanodes

Cited by 13 publications

References 24 publications

Synthesis of TiO2/ZnO photoanodes on FTO conductive glass for photovoltaic applications

Synthesis of TiO2/ZnO photoanodes on FTO conductive glass for photovoltaic applications

Dye Sensitized Solar Cell (DSSC) Efficiency Derived from Natural Source

Photoelectric Performance Optimization of Dye‐Sensitized Solar Cells Based on ZnO‐TiO2 Composite Nanofibers

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Product

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Photoelectric Performance Optimization of Dye‐Sensitized Solar Cells Based on ZnO‐TiO₂ Composite Nanofibers