title: Nanostructured nanorod arrays presenting TiO2 nanorods/poly(3-hexylthiophene) for solar cells application.
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 TiO2 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 TiO2 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.
authors.affiliation: Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30050, Taiwan, ROC.
authors.forename: Hsu-Shen
authors.initials: HS
authors.lastname: Wang
authors.forename: Shih-Yung
authors.initials: SY
authors.lastname: Chen
authors.forename: Yuh-Lin
authors.initials: YL
authors.lastname: Wang
authors.forename: Kung-Hwa
authors.initials: KH
authors.lastname: Wei
mesh_terms: D011211:Electric Power Supplies; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008422:Materials Testing; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure*; D016566:Organoselenium Compounds / Q000737:chemistry*; D012993:Solar Energy; D014025:Titanium / Q000737:chemistry*
chemical_list: D016566:Organoselenium Compounds; C526212:poly(3-hexyl)selenophene; C009495:titanium dioxide; D014025:Titanium