Rapid Communication in Photoscience

  • 제2권3호
  • /
  • Pages.82-84
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  • 2013
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  • 2234-8182(pISSN)
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  • 2288-4564(eISSN)
한국광과학회 (Korean Society of Photoscience)
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Preparation of TiO2 Nanowires/Nanoparticles Composite Photoanodes for Dye-sensitized Solar Cells

  • Heo, Sung Yeon (Department of Chemical and Biomolecular Engineering, Yonsei University) ;
  • Chi, Won Seok (Department of Chemical and Biomolecular Engineering, Yonsei University) ;
  • Kim, Jin Kyu (Department of Chemical and Biomolecular Engineering, Yonsei University) ;
  • Lee, Chang Soo (Department of Chemical and Biomolecular Engineering, Yonsei University) ;
  • Kim, Jong Hak (Department of Chemical and Biomolecular Engineering, Yonsei University)
  • 투고 : 2013.10.29
  • 심사 : 2013.12.17
  • 발행 : 2013.09.01
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초록

We fabricated dye-sensitized solar cells (DSSCs) with $TiO_2$ nanowire (NW)/nanoparticle (NP) composite and solidified nanogel as the photoelectrode and electrolyte, respectively. $TiO_2$ NWs were generated via pore-infiltration of titanium (IV) isopropoxide (TTIP) into a track-etched polycarbonate membrane with a pore diameter of 100 nm, followed by calcination at $500^{\circ}C$. Energy conversion efficiency of $TiO_2$ NW/NP-based DSSCs was always higher than that of NP-based cells. We attributed this to improved light scattering and electron transport by $TiO_2$ NWs, as verified by intensity modulation photocurrent spectroscopy (IMPS) and intensity modulation photovoltage spectroscopy (IMVS) analyses. Quasi-solid-state DSSCs with NW/NP composites exhibited 5.0% efficiency at 100 $mW/cm^2$, which was much greater than that of NP-based cells (3.2%).

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참고문헌

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피인용 문헌

  1. Recent developments of graphene-TiO 2 composite nanomaterials as efficient photoelectrodes in dye-sensitized solar cells: A review vol.82, 2018, https://doi.org/10.1016/j.rser.2017.09.024