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Acta Physico-Chimica Sinica  2011, Vol. 27 Issue (02): 408-412    DOI: 10.3866/PKU.WHXB20110237
Room Temperature Synthesis of Rutile TiO2 and Its Application in Dye-Sensitized Solar Cells
LIU Jia1,2, YANG Hao-Tian1,2, ZHANG Jing-Bo1, ZHOU Xiao-Wen1, LIN Yuan1
1. Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China;
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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We prepared rutile TiO2 powders of good crystallinity by hydrolyzing a Ti(OC4H9)4 precursor at room temperature and by reprecipitation. X-ray diffraction (XRD) revealed that higher acidity, lower temperature, and specific amounts of Cl- as a medium result in rutile TiO2. This rutile TiO2 has an irregular rice-like structure. After adding the P105 (EO37PO56EO37) tri-block copolymer as a structural agent, the rutile TiO2 aggregated to form rough 350 nm spheres. These rough spheres have a greatly enhanced light harvesting efficiency and improved energy conversion efficiency in dye-sensitized solar cells. This is due to their high light scattering effect and larger surface area (109.5 m2·g-1). By adding these large rutile spheres at a mass fraction of 25% to the over-layer of a TiO2 film composed of ~20 nm TiO2 particles as light scattering centers, the energy conversion efficiency of the dye-sensitized solar cells (DSSC) was 7.27%. This is a 17% increase in conversation efficiency compared with the DSSC based on a TiO2 photoanode without these rough rutile spheres.

Key wordsDye-sensitized solar cell      TiO2      Rutile      Scattering layer     
Received: 15 October 2010      Published: 12 January 2011
MSC2000:  O649  

The project was supported by the National Key Basic Research Program of China (973) (2006CB202605), High-Tech Research and Development Program of China (983) (2007AA05Z439), and National Natural Science Foundation of China (20973183).

Corresponding Authors: LIN Yuan     E-mail:
Cite this article:

LIU Jia, YANG Hao-Tian, ZHANG Jing-Bo, ZHOU Xiao-Wen, LIN Yuan. Room Temperature Synthesis of Rutile TiO2 and Its Application in Dye-Sensitized Solar Cells. Acta Physico-Chimica Sinica, 2011, 27(02): 408-412.

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