Preparation of anatase TiO2 nanoparticles using low hydrothermal temperature for dye-sensitized solar cell

Quality in Research: International Symposium on Materials, Metallurgy, and Chemical Engineering

材料科学;冶金学;化学工业

Sofyan, N.^1,2 ; Ridhova, A.^1 ; Yuwono, A.H.^1,2 ; Udhiarto, A.^3

Department of Metallurgical and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Depok

16424, Indonesia^1

Tropical Renewable Energy Center, Faculty of Engineering, Universitas Indonesia, Depok

16424, Indonesia^2

Department of Electrical Engineering, Faculty of Engineering, Universitas Indonesia, Depok

16424, Indonesia^3

关键词: Anatase TiO2 nanoparticles;    Hydrothermal temperature;    Hydrothermal treatments;    Hydrothermally synthesized;    Nanocrystalline anatase TiO2;    Power conversion efficiencies;    Titanium dioxides (TiO2);    Voltage characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/316/1/012055/pdf
DOI  :  10.1088/1757-899X/316/1/012055

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

One device being developed as an alternative source of renewable energy by utilizing solar energy source is dye-sensitized solar cells (DSSC). This device works using simple photosynthetic-electrochemical principle in the molecular level. In this device, the inorganic oxide semiconductor of titanium dioxide (TiO2) has a great potential for the absorption of the photon energy from the solar energy source, especially in the form of TiO2nanoparticle structure. This nanoparticle structure is expected to improve the performance of DSSC because the surface area to weight ratio of this nanostructures is very large. In this study, the synthesis of TiO2nanoparticle from its precursors has been performed along with the fabrication of the DSSC device. Effort to improve the size of nanocrystalline anatase TiO2was accomplished by low hydrothermal treatment at various temperatures whereas the crystallinity of the anatase phase in the structure was performed by calcination process. Characterization of the materials was performed using X-ray Diffraction (XRD) and scanning electron microscope (SEM), while the DSSC performance was examined through a high precision current versus voltage (I-V) curve analyzer. The results showed that pure anatase TiO2nanoparticles could be obtained at low hydrothermal of 100, 125, and 150 °C followed by calcination at 450 °C. The best performance of photocurrent-voltage characteristic was given by TiO2hydrothermally synthesized at 150 °C with power conversion efficiency (PCE) of 4.40 %, whereas the standard TiO2nanoparticles has PCE only 4.02 %. This result is very promising in terms low temperature and thus low cost of anatase TiO2semiconductor preparation for DSSC application.