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In this study, we report a mild and controllable preparation method for graphene oxide (GO) and ZnO ultrafine powder, respectively. On this basis, reduced graphene oxide (rGO)/ZnO composite powder for the photoanodes of dye-sensitized solar cells (DSSCs) was synthesized by chemical reduction method. Phase composition, microstructure, chemical structure, conductivity, and specific surface area were examined using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FT-IR), Raman, and Brunauer-Emmett-Teller (BET) method, respectively. Photoelectric performance of DSSCs was studied by the current density-voltage (J-V), electrochemical impedance spectra (EIS) photoelectric test system. As rGO possesses higher adsorption capacity and excellent conductivity, hence it may effectively promote separation of electrons and holes, transmission ability of electrons and holes, and utilization of the light. By contrast, the as-synthesized zinc oxide (ZnO) may increase adsorption capacity of dye molecules, so photoelectric conversion efficiency (PCE) of the solar cells is increased by means of synergistic effects. When adding rGO in the rGO/ZnO composite powder at 1.25 wt%, PCE reaches to 6.27%, an increase of 20.6% more than that of pure ZnO as the photoanode.
Wydawca
Czasopismo
Rocznik
Tom
Strony
170--180
Opis fizyczny
Bibliogr. 33 poz., rys., tab.
Twórcy
autor
- School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen City, China
autor
- School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen City, China
autor
- School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen City, China
autor
- School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen City, China
autor
- School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen City, China
autor
- School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen City, China
autor
- School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen City, China
autor
- School of Mechanical and Electrical Engineering, Jingdezhen Ceramic University, Jingdezhen City, China
autor
- School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen City, China
Bibliografia
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- [22] Liu F, Huang JG, Jiang JH. Synthesis and characterization of red pigment YAl1−yCryO3 prepared by the low temperature combustion method. J Eur Ceram Soc. 2013;33(13–14):2723–9.
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- [27] Shuai SR, Liu Y, Zhao C, Zhu HY, Li Y, Zhou KH, et al. Improved synthesis of graphene oxide with controlled oxidation degree by using different dihydrogen phosphate as intercalators. Chem Phys. 2020;539:110938.
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- [29] Wu J, Li LY, Li XA, Min X, Xing Y. A novel 2D graphene oxide modified α-AgVO3 nanorods: design, fabrication, and enhanced visible-light photocatalytic performance. J Adv Ceram. 2022;11:308–20.
- [30] Riaza R, Alia M, Maiyalaganc T, Anjuma AS, Lee S, Ko MJ, et al. Dye-sensitized solar cell (DSSC) coated with energy down shift layer of nitrogen-doped carbon quantum dots (N-CQDs) for enhanced current density and stability. Appl Surf Sci. 2019;483:425–31.
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- [32] Omar A, Ali MS, Rahim NA. Electron transport properties analysis of titanium dioxide dye-sensitized solar cells (TiO2-DSSCs) based natural dyes using electrochemical impedance spectroscopy concept: a review. Sol Energy. 2020;207:1088–121.
- [33] Quang LND, Kaliamurthy AK, Hao NH. Cosensitization of metal based N719 and metal free D35 dyes: an effective strategy to improve the performance of DSSC. Opt Mater. 2021;111:110589.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-c6e31141-d2da-459a-b1a6-899fe643f5b3