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Journal of Renewable and Sustainable Energy / Volume 1 / Issue 6 / REGULAR ARTICLES

J. Renewable Sustainable Energy 1, 063107 (2009); http://dx.doi.org/10.1063/1.3278518 (12 pages)

A new figure of merit for qualifying the fluorine-doped tin oxide glass used in dye-sensitized solar cells

Xiaoming Huang (黄小铭), Yiduo Zhang (张一多), Huicheng Sun (孙惠成), Dongmei Li (李冬梅), Yanhong Luo (罗艳红), and Qingbo Meng (孟庆波)

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190, China

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(Received 13 August 2009; accepted 4 December 2009; published online 31 December 2009)

We have successfully obtained a new figure of merit for qualifying fluorine-doped tin oxide (FTO) glass in dye-sensitized solar cells (DSCs) through two equivalent testing methods. These methods are demonstrated and applied to change the equivalent transmittance and sheet resistance of FTO glass even after the glass is assembled in DSCs. By recording the I-V characteristic of a DSC with changed equivalent transmittance and sheet resistance of FTO glass, the dependent relations between the DSC performance (short circuit current density, open circuit voltage, and fill factor) and FTO properties (transmittance and sheet resistance) are found. With these relations, the new figure of merit MTC for FTO glass is successfully defined to be in linearly increasing dependence on the efficiency of DSCs. A series of DSCs with different FTO glasses is prepared to test the effectiveness of MTC and Haacke’s figure of merit ΦTC, which has been widely used for more than 30 years. The result shows that MTC is proportional to the efficiency of DSCs, while ΦTC is not. MTC could be very useful as a guideline to greatly simplify the process of optimizing the FTO glass to improve the efficiency of DSCs.

© 2009 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENT
    1. Two equivalent testing methods
    2. Preparation of FTO layer on glass substrates
    3. Preparation of DSCs
    4. Characterization
  3. RESULTS AND DISCUSSION
  4. CONCLUSIONS

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KEYWORDS and PACS

Keywords

current density, doping, fluorine, glass, materials preparation, solar cells, tin compounds

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3278518

PUBLICATION DATA

ISSN

1941-7012 (print)  
1941-7012 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    M. Buchanan, J. B. Webb, and D. F. Williams, Appl. Phys. Lett. 37, 213 (1980)APPLAB000037000002000213000001.

    A. E. Rakhshani, Y. Makdisi, and H. A. Ramazaniyan, J. Appl. Phys. 83, 1049 (1998)JAPIAU000083000002001049000001.

    R. Cebulla, R. Wendt, and K. Ellmer, J. Appl. Phys. 83, 1087 (1998)JAPIAU000083000002001087000001.

    G. Haacke, J. Appl. Phys. 47, 4086 (1976)JAPIAU000047000009004086000001.

    L. Y. Han, N. Koide, Y. Chiba, A. Islam, R. Komiya, N. Fuke, A. Fukui, and R. Yamanaka, Appl. Phys. Lett. 86, 213501 (2005)APPLAB000086000021213501000001.


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