Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Seed Layers in TiO2 Nanorods on FTO

FTO 기판위 TiO2 나노로드의 시드박막층

  • Kim, Hyun (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology) ;
  • Yang, Bee Lyong (School of Advanced Materials and System Engineering, Kumoh National Institute of Technology)
  • 김현 (금오공과대학교 신소재공학) ;
  • 양비룡 (금오공과대학교 신소재공학)
  • Received : 2014.03.13
  • Accepted : 2014.12.23
  • Published : 2015.01.31
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Abstract

Nano-structured electrodes were fabricated to develop efficient photoelectrochemical conversion systems for the synthesis of hydrogen from water and hydrocarbon fuels from $CO_2$. In this work, we compared the photoactivity of rutile $TiO_2$ nanorods grown on FTO and SEED/FTO by a hydrothermal method. An analysis of the microstructures showed that the density of nanorod/SEED/FTO samples, which showed only the (002) peak in their x-ray diffraction patterns, was two times higher than that of a nanorod/FTO sample. The photocurrent density of nanorod/SEED/FTO samples was increased by as much as 40% of the photocurrent density of the nanorod/FTO sample due to the increased specific density of the nanorods. However, the transient time for a recombination of photogenerated electrons and holes was 20 times faster in the nanorod/SEED/FTO. The seed layers are discussed as possible recombination sites.

Keywords

References

  1. K. Hashimoto, H. Irie, and A. Fujishima, "$TiO_2$ Photocatalysis: A Historical Overview and Future Prospects," Jpn. J. Appl. Phys., 44 [12] 8269-85 (2005). https://doi.org/10.1143/JJAP.44.8269
  2. M. Tahir and N. S. Amin, "Advances in Visible Light Responsive Titanium Oxide-based Photocatalysts for $CO_2$ Conversion to Hydrocarbon Fuels," Energ. Convers. Manage., 76 194-214 (2013). https://doi.org/10.1016/j.enconman.2013.07.046
  3. P. Roy, S. Berger, and P. Schmuki, "$TiO_2$ Nanotubes: Synthesis and Applications," Angew. Chem. Int. Ed., 50 2904-39 (2011). https://doi.org/10.1002/anie.201001374
  4. X. Feng, K. Shankar, O. K. Varghese, M. Paulose, T. J. Latempa, and C. A. Grimes, "Vertically Aligned Single Crystal $TiO_2$ Nanowire Arrays Grown Directly on Transparent Conducting Oxide Coated Glass: Synthesis Details and Applications," Nano Lett., 8 [11] 3781-86 (2008). https://doi.org/10.1021/nl802096a
  5. C. A. Grimes, O. K. Varghese, and S. Ranjan; Light, Water, Hydrogne : The Solar Generation of Hydrogen by Water Photoelectrolysis, pp. 257-369 Springer., New York, 2008.
  6. M. Radecka, M. Wierzbicka, S. Komornicki, and M. Rekas, "Influence of Cr on Photoelectrochemical Properties of $TiO_2$ Thin Films," Physica B., 348 [1-4] 160-68 (2004). https://doi.org/10.1016/j.physb.2003.11.086

Cited by

  1. FTO 필름 식각액에 관한 융합연구 vol.8, pp.6, 2015, https://doi.org/10.22156/cs4smb.2018.8.6.043