Three dimensional-TiO2nanotube array photoanode architectures assembled on a thin hollow nanofibrous backbone and their performance in quantum dot-sensitized solar cells

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

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)

Abstract

Facile synthesis of TiO2nanotube 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).

Original languageEnglish
Pages (from-to)2810-2812
Number of pages3
JournalChemical Communications
Volume49
Issue number27
DOIs
Publication statusPublished - 7 Mar 2013

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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