Nanostructured nanorod arrays presenting TiO 2 nanorods/poly(3-hexylthiophene) for solar cells application

Hsu Shen Wang, Shih Yung Chen, Yuh Lin Wang, Kung-Hwa Wei*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We have fabricated inverted heterojunction solar cell devices incorporating titanium dioxide nanorod/poly(3-hexylthiophene) (P3HT) rod arrays using melt-assisted anodic alumina oxide template. Using transmission electron microscopy and conductance atomic force microscopy, we revealed that phase-separated TiO 2 rich (n-type) and P3HT rich (p-type) regions presents in these rod arrays. The optimized composite rod array structure had a higher hole mobility than that of the blend film consisting of TiO 2 nanorod and P3HT as determined by fitting the dark J-V curves into the space charge-limited current model. The more efficient carrier transport of the device incorporating the nanorod arrays provided it with both a higher short-circuit current density and power conversion efficiency.

Original languageEnglish
Pages (from-to)3229-3234
Number of pages6
JournalJournal of Nanoscience and Nanotechnology
Volume11
Issue number4
DOIs
StatePublished - 1 Dec 2011

Keywords

  • Array
  • Nanorod
  • Nanostructure
  • P3HT
  • Solar Cell

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