title: Enhancement of photoconversion efficiency of ZnO nanorod-based dye-sensitized solar cells in presence of ZrO2 thin energy barrier.
abstract: In order to enhance the power conversion efficiency of ZnO nanorods-based dye-sensitized solar cells (DSSCs), ZrO2 thin energy barriers were formed on ZnO nanorods using a sol-gel method. In DSSCs, the short-circuit current was substantially increased, and the dark current was significantly reduced in the presence of the ZrO2 layer. Due to suppressed recombination in the presence of the ZrO2 layer, 81.3% increment of power conversion efficiency is achieved compared to those without ZrO2 layer.
authors.affiliation: Department of Chemistry, Hanyang University, 17 Haengdang-dong, Sungdong-ku, Seoul 133-791, Republic of Korea.
authors.forename: Gumae
authors.initials: G
authors.lastname: Koo
authors.forename: Wonjoo
authors.initials: W
authors.lastname: Lee
authors.forename: Byungho
authors.initials: B
authors.lastname: Kil
authors.forename: Heejoon
authors.initials: H
authors.lastname: Ahn
authors.forename: Byung Won
authors.initials: BW
authors.lastname: Cho
authors.forename: Sung-Hwan
authors.initials: SH
authors.lastname: Han