DOI QR코드

DOI QR Code

수열합성을 이용한 나노분말 합성 및 연료감응태양전지 응용

Synthesis of Nanopowders by Hydrothermal Method and their Application to Dye-sentisized Solar Cell Materials

  • 임진영 (안동대학교 신소재공학부) ;
  • 안정석 (안동대학교 신소재공학부) ;
  • 안중호 (안동대학교 신소재공학부)
  • Lim, JinYoung (School of Advanced Materials Engineering, Andong National University) ;
  • Ahn, Jeongseok (School of Advanced Materials Engineering, Andong National University) ;
  • Ahn, Jung-Ho (School of Advanced Materials Engineering, Andong National University)
  • 투고 : 2018.07.10
  • 심사 : 2018.07.30
  • 발행 : 2018.08.28

초록

In the present work, we synthesize nano-sized ZnO, $SnO_2$, and $TiO_2$ powders by hydrothermal reaction using metal chlorides. We also examine the energy-storage characteristics of the resulting materials to evaluate the potential application of these powders to dye-sensitized solar cells. The control of processing parameters such as pressure, temperature, and the concentration of aqueous solution results in the formation of a variety of powder morphologies with different sizes. Nano-rod, nano-flower, and spherical powders are easily formed with the present method. Heat treatment after the hydrothermal reaction usually increases the size of the powder. At temperatures above $1000^{\circ}C$, a complete collapse of the shape occurs. With regard to the capacity of DSSC materials, the hydrothermally synthesized $TiO_2$ results in the highest current density of $9.1mA/cm^2$ among the examined oxides. This is attributed to the fine particle size and morphology with large specific surface area.

키워드

참고문헌

  1. H. Gleiter : Prog. Mater. Sci., 33 (1989) 223. https://doi.org/10.1016/0079-6425(89)90001-7
  2. H. Gleite : Nanostruct. Mater., 1 (1992) 1. https://doi.org/10.1016/0965-9773(92)90045-Y
  3. C. Suryanarayana and F.H. Froes: Metall. Trans., 23A (1992) 1071.
  4. R.W.Siegel, E. Hu and M.C. Roco: Nanostructured science and technology (R&D status and trends in nanoparticles, nanostructured materials, and nanodevices), Chapter 6, International Technology Research Institute, World Technology (WTEC) Division, Publication Review Copy (1998) 93.
  5. J.H. Huang, V.P. Dravid, M.H. Teng, J.J. Host, B.R. Elliott, D.L. Johnson, and T.O. Mason: J. Mater. Res.,12 (1997) 1076. https://doi.org/10.1557/JMR.1997.0150
  6. S. E. Gledhill, B. Scott and B. A. Gregg: J. Mater. Res., 20 (2005) 3167. https://doi.org/10.1557/jmr.2005.0407
  7. N. Kopidakis, K.D. Benkstein, J. van de Lagemaat and A.J. Frank: J. Phys. Chem. B, 107 (2003) 11307.
  8. Y. J. Son, J. S. Kang, J. J. Yoon, J. Kim, J. W. Jeong, J. H. Kang, M. J. Lee, H. S. Park and Y. E. Sung: J. Phys. Chem. C, 122 (2018) 7051.