Mesoporous Carbon-TiO2Beads with Nanotextured Surfaces as Photoanodes in Dye-Sensitized Solar Cells

Li Na Quan, Yoon Hee Jang, Yu Jin Jang, Jihyeon Kim, Wonmok Lee, Jun Hyuk Moon, Dong Ha Kim

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


Mesoporous TiO2and carbon-TiO2beads with highly roughened surfaces at the nanoscale were prepared by using triblock copolymer P123 simultaneously as template and carbon source in combination with colloid self-assembly. In addition, their role as modifier of the photoanode in the efficiency enhancement of dye-sensitized solar cells is discussed. Hierarchically organized TiO2networks can provide fast electron transport paths, and ordered mesopores can enhance light scattering as well as facilitate infiltration of the electrolyte. It was found that there is an optimum loading level of mesoporous TiO2and carbon-TiO2beads, that is, 1.0 and 0.5 wt %, with respect to the control P25 TiO2nanoparticles, respectively, for maximizing the photovoltaic performance. An increase in the photovoltaic performance by up to 21.45 % was achieved by incorporation of mesoporous carbon-TiO2beads into the conventional photoanode of DSSCs owing to enhanced charge transport and collection effects.

Original languageEnglish
Pages (from-to)2590-2596
Number of pages7
Issue number9
StatePublished - Sep 2014

Bibliographical note

Publisher Copyright:
© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim


  • beads
  • block copolymers
  • carbonization
  • inverse opals
  • solar cells


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