Effect of Tungsten Doping on the Properties of Titanium Dioxide Dye-Sensitized Solar Cells

Kao, Ming-Cheng; Weng, Jun-Hong; Chiang, Chih-Hung; Chen, Kai-Huang; Lin, Der-Yuh; Kang, Tsung-Kuei

doi:10.3390/en17205118

Open AccessArticle

Effect of Tungsten Doping on the Properties of Titanium Dioxide Dye-Sensitized Solar Cells

by

Ming-Cheng Kao

^1,*

,

Jun-Hong Weng

²,

Chih-Hung Chiang

³,

Kai-Huang Chen

⁴

,

Der-Yuh Lin

⁵ and

Tsung-Kuei Kang

⁶

¹

Department of Information and Communication Engineering, Graduate Institute of Aeronautics, Chaoyang University of Technology, Taichung 413310, Taiwan

²

Department of Electrical Engineering, Tunghai University, Taichung 413310, Taiwan

³

Department of Aeronautical Engineering, Graduate Institute of Aeronautics, Chaoyang University of Technology, Taichung 413310, Taiwan

⁴

Department of Electronic Engineering, Cheng Shiu University, Kaohsiung 83347, Taiwan

⁵

Department of Electronic Engineering, National Changhua University of Education, Changhua 50074, Taiwan

⁶

Department of Electronic Engineering, Feng Chia University, Taichung 407102, Taiwan

^*

Author to whom correspondence should be addressed.

Energies 2024, 17(20), 5118; https://doi.org/10.3390/en17205118

Submission received: 30 August 2024 / Revised: 29 September 2024 / Accepted: 10 October 2024 / Published: 15 October 2024

(This article belongs to the Topic Application of IoT on Manufacturing, Communication and Engineering)

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Abstract

Tungsten-doped TiO₂ thin films were prepared by sol–gel method on fluorine-doped tin oxide-coated substrates as working electrodes of dye-sensitized solar cells. The influences of different W doping (0, 2, 4, 6, and 8 at%) on the microstructure, optical, and photovoltaic properties of the W-TiO₂ thin-film DSSCs were studied by the measurement of X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Brunauer–Emmett–Teller (BET) analysis, and electrochemical impedance spectroscopy (EIS). An optimal DSSCs performance was observed with a 6 at% W-doped TiO₂ thin film, resulting in a Voc of 0.68 V, a Jsc of 20.2 mA/cm², an FF of 68.6%, and an efficiency (η) of 9.42%. The efficiency of DSSCs with 6 at% W-doped TiO₂ photoanode improved by 75%. This is because the 6 at% W-doped TiO₂ thin film increases the specific surface area and electron transfer rate.

Keywords: tungsten; titanium oxide; thin films; dye-sensitized solar cells

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MDPI and ACS Style

Kao, M.-C.; Weng, J.-H.; Chiang, C.-H.; Chen, K.-H.; Lin, D.-Y.; Kang, T.-K. Effect of Tungsten Doping on the Properties of Titanium Dioxide Dye-Sensitized Solar Cells. Energies 2024, 17, 5118. https://doi.org/10.3390/en17205118

AMA Style

Kao M-C, Weng J-H, Chiang C-H, Chen K-H, Lin D-Y, Kang T-K. Effect of Tungsten Doping on the Properties of Titanium Dioxide Dye-Sensitized Solar Cells. Energies. 2024; 17(20):5118. https://doi.org/10.3390/en17205118

Chicago/Turabian Style

Kao, Ming-Cheng, Jun-Hong Weng, Chih-Hung Chiang, Kai-Huang Chen, Der-Yuh Lin, and Tsung-Kuei Kang. 2024. "Effect of Tungsten Doping on the Properties of Titanium Dioxide Dye-Sensitized Solar Cells" Energies 17, no. 20: 5118. https://doi.org/10.3390/en17205118

APA Style

Kao, M.-C., Weng, J.-H., Chiang, C.-H., Chen, K.-H., Lin, D.-Y., & Kang, T.-K. (2024). Effect of Tungsten Doping on the Properties of Titanium Dioxide Dye-Sensitized Solar Cells. Energies, 17(20), 5118. https://doi.org/10.3390/en17205118

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Effect of Tungsten Doping on the Properties of Titanium Dioxide Dye-Sensitized Solar Cells

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