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Journal of Inorganic Materials

Journal of Inorganic Materials >

2009 , Vol. 24 >Issue 6: 1110 - 1114

DOI: https://doi.org/10.3724/SP.J.1077.2009.01110

Research Paper

Study on Sol-hydrothermal Synthesis of TiO2 Nanoparticles and their Photoelectric Properties Sensitized by Dye

  • ZHANG Ji-Yuan ,
  • TIAN Han-Min ,
  • TIAN Zhi-Peng ,
  • WANG Xiang-Yan ,
  • YUTao ,
  • ZOU Zhi-Gang
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  • (1. Eco-materials and Renewable Energy Research Center (ERERC), Nanjing University, Nanjing 210093, China; 2. Department of Physics, Nanjing University, Nanjing 210093, China; 3. Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, China; 4. National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China)

Received date: 2009-04-02

  Revised date: 2009-05-14

  Online published: 2010-04-22

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Abstract

TiO2 nanopaticle was synthesised by sol-hydrothermal using titanium isopropoxide as the precursor. The effects of synthesis conditions on grain size, crystallinity and phase transformation between phasepure rutile and phase-pure anatase, were analyzed by TEM and XRD. It was revealed that crystal-type, crystallinity and crystal-size (from 10-20nm to 120nm) of TiO2 nanoparticles could be controlled by the pre-thermal treatment, hydrothermal temperature and concentration of the precursor. A paste, made from the nanoparticles and water, and by a doctor-blade technology which could control the thickness of the film were utilized to make a Dye-Sensitized Solar Cell (DSSC), which achieved a photoelectric conversion efficiency of 7.33%, as a result of the phase-pure anatase, appropriate grain size and favorable crystallinity of the TiO2 nanoparticles. It exceeded those DSSC’s efficiencies made from the commercial paste or P25 paste.

Key words： dye-sensitized solar cells; nanoparticle TiO2; crystallinity; grain size

Cite this article

ZHANG Ji-Yuan , TIAN Han-Min , TIAN Zhi-Peng , WANG Xiang-Yan , YUTao , ZOU Zhi-Gang . Study on Sol-hydrothermal Synthesis of TiO2 Nanoparticles and their Photoelectric Properties Sensitized by Dye[J]. Journal of Inorganic Materials, 2009 , 24(6) : 1110 -1114 . DOI: 10.3724/SP.J.1077.2009.01110

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