Three dimensional-TiO(2) nanotube array photoanode architectures assembled on a thin hollow nanofibrous backbone and their performance in quantum dot-sensitized solar cells.

نویسندگان

  • Hyungkyu Han
  • P Sudhagar
  • Taeseup Song
  • Yeryung Jeon
  • Iván Mora-Seró
  • Francisco Fabregat-Santiago
  • Juan Bisquert
  • Yong Soo Kang
  • Ungyu Paik
چکیده

Facile synthesis of TiO2 nanotube branched (length ∼0.5 μm) thin hollow-nanofibers is reported. The hierarchical three dimensional photoanodes (H-TiO2-NFs) (only ∼1 μm thick) demonstrate their excellent candidature as photoanodes in QD-sensitized solar cells, exhibiting ∼3-fold higher energy conversion efficiency (η = 2.8%, Jsc = 8.8 mA cm(-2)) than that of the directly grown nanotube arrays on a transparent conducting oxide (TCO) substrate (η = 0.9%, Jsc = 2.5 mA cm(-2)).

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عنوان ژورنال:
  • Chemical communications

دوره 49 27  شماره 

صفحات  -

تاریخ انتشار 2013