Title: Nanostructured Nanorod Arrays Presenting TiO(2) Nanorods/Poly(3-hexylthiophene) for Solar Cells Application
Authors: Wang, Hsu-Shen
Chen, Shih-Yung
Wang, Yuh-Lin
Wei, Kung-Hwa
Department of Materials Science and Engineering
Issue Date: 1-Apr-2011
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.
URI: http://dx.doi.org/10.1166/jnn.2011.3727
ISSN: 1533-4880
DOI: 10.1166/jnn.2011.3727
Volume: 11
Issue: 4
Begin Page: 3229
End Page: 3234
Appears in Collections:Articles