Effect of TiO2 sol on the conversion efficiency of TiO2 based dye-sensitized solar cell

Toe, May Zin; Pung, Swee‐Yong; Yaacob, Khatijah Aisha; Matsuda, Atsunori; Tan, Wei; Han, Soe Soe

doi:10.1007/s10971-020-05325-9

Cited by 10 publications

(6 citation statements)

References 31 publications

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“…As for solar cell applications, the sol–gel route is also used to form the active layer or the required seed/buffer layer for photo-electrochemical solar-to-electric conversion, especially in DSSC applications [ 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 ]. Zinc oxide is one of the transparent conductive oxides.…”

Section: Future Outlook For the Sol–gel Methods In Emerging Technolmentioning

confidence: 99%

Nanomaterial Fabrication through the Modification of Sol–Gel Derived Coatings

et al. 2021

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In materials processing, the sol–gel method is one of the techniques that has enabled large-scale production at low cost in the past few decades. The versatility of the method has been proven as the fabrication of various materials ranging from metallic, inorganic, organic, and hybrid has been reported. In this review, a brief introduction of the sol–gel technique is provided and followed by a discussion of the significance of this method for materials processing and development leading to the creation of novel materials through sol–gel derived coatings. The controlled modification of sol–gel derived coatings and their respective applications are also described. Finally, current development and the outlook of the sol–gel method for the design and fabrication of nanomaterials in various fields are described. The emphasis is on the significant potential of the sol–gel method for the development of new, emerging technologies.

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Section: Future Outlook For the Sol–gel Methods In Emerging Technolmentioning

confidence: 99%

Nanomaterial Fabrication through the Modification of Sol–Gel Derived Coatings

et al. 2021

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“…The reduction of GO led to be change in the CB energy level, and hence by controlling the reduction of GO, the electronic and optical properties of GO can be tuned in the desired way. Thermal annealing in the vacuum provides better control over reduction in comparison to chemical reduction processes. − …”

Section: Introductionmentioning

confidence: 99%

“…Thermal annealing in the vacuum provides better control over reduction in comparison to chemical reduction processes. 12 − 14 …”

Section: Introductionmentioning

confidence: 99%

Property Modulation of Graphene Oxide Incorporated with TiO₂ for Dye-Sensitized Solar Cells

et al. 2022

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Graphene oxide (GO) nano-powder is synthesized by the modified Hummer's method, and further thin films are deposited by using the water solution of GO through spin-coating. These films are thermally reduced along with the synthesized GO nano-powder at 50 to 200 °C in a high vacuum. Microstructural, electrical, and optical properties are expectedly controlled by thermal reduction. The electronic properties of GO are investigated by X-ray photoelectron spectroscopy and near-edge X-ray absorption fine structure. The reduction is confirmed by Raman spectroscopy. The work function and band gap of GO are tuned with the thermal reduction. The changes in properties of GO are not linear, and anomalous changes are observed for the reduction around 150 °C. Pristine and reduced GO nano-powder is incorporated into TiO 2 paste to be the photoanode for dye-sensitized solar cells (DSSCs). It is observed that the performance of the fabricated cells is significantly enhanced for the GO reduced at 150 °C, and the cell exhibited a significant increment of ∼23% for the power conversion efficiency in comparison to DSSC based on an unmodified TiO 2 photoanode.

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“…In addition, the development of thin films by the sol-gel method is used in the extraction technology of waste disposal, especially heavy metal adsorbents , such as electro-spinned flexible Fe3O4 fibers (Shi et al, 2020) and yttriastabilized ZrO2 membranes (Qin et al, 2020). The most extensively researched is the application of thin layers as solar-cells (dye-sensitized solar cells, DSSC) (Abd-Ellah et al, 2016;Nbelayim et al, 2017Nbelayim et al, , 2018Nbelayim et al, , 2020Tan et al, 2017;Toe et al, 2020), from zinc oxide material (ZnO) (Khan et al, 2017;Muchuweni et al, 2017;Prasada Rao et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of ZnO Thin Layers using Sol-Gel Spin Coating Method

Ahzan¹,

Darminto

Nugroho

et al. 2021

Jurnal. Penelitian. Pengkajian. Ilmu. Pendidikan. e-Saintika

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The potential of thin layer in many applications has led to research on the development of many new materials and their fabrication methods. This study aimed to synthesize a thin layer of ZnO using the facile and low-cost sol-gel spin coating method. The ZnO thin layer is deposited on a glass substrate and analyzed to observe the influence of the deposition variables such as heating and rotation speed, and its aging. The characterization methods include the identification of the formed phase using X-Ray Diffractometer (XRD), and the microstructure and elemental composition using Scanning Electron Microscopy (SEM) coupled with EDS (Energy Dispersive Spectrometer). The study shows that a thin layer of ZnO is successfully deposited on a glass substrate by heat treatment at temperatures of 300 oC and 500 oC. Furthermore, XRD reveals that higher heating temperatures result in higher diffraction peak intensity. At a heating temperature of 300 °C crystals are formed but are not yet perfectly oriented, while they are at 500 °C. On the other hand, higher spin coating rotation speed gives rise to lower intensity of diffraction peak. The ZnO crystallization is easier to form in the coating process with a lower rotation (1500 rpm). Interestingly, the thin layer is stable over time where there is no significant change in each sample, both in terms of intensity and width of the ZnO crystal peak. The results indicate that gel precursor aged less than two days can form ZnO crystals. Finally, SEM results show that the surface morphology of the ZnO layer heated at 500 oC has an average grain size of 300 nm. Based on the cross-sectional results of SEM shows that the higher the coating rotation speed has resulted the thinner of the ZnO layer, where the thickness of the resulting layer is on order >5 mm.

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Effect of TiO2 sol on the conversion efficiency of TiO2 based dye-sensitized solar cell

Cited by 10 publications

References 31 publications

Nanomaterial Fabrication through the Modification of Sol–Gel Derived Coatings

Nanomaterial Fabrication through the Modification of Sol–Gel Derived Coatings

Property Modulation of Graphene Oxide Incorporated with TiO₂ for Dye-Sensitized Solar Cells

Synthesis and Characterization of ZnO Thin Layers using Sol-Gel Spin Coating Method

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Effect of TiO2 sol on the conversion efficiency of TiO2 based dye-sensitized solar cell

Cited by 10 publications

References 31 publications

Nanomaterial Fabrication through the Modification of Sol–Gel Derived Coatings

Nanomaterial Fabrication through the Modification of Sol–Gel Derived Coatings

Property Modulation of Graphene Oxide Incorporated with TiO2 for Dye-Sensitized Solar Cells

Synthesis and Characterization of ZnO Thin Layers using Sol-Gel Spin Coating Method

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Property Modulation of Graphene Oxide Incorporated with TiO₂ for Dye-Sensitized Solar Cells