title: Organic dye-sensitized sponge-like TiO₂ photoanode for dye-sensitized solar cells.
abstract: Light harvesting inside a solar cell is crucial for overall performance. Increasing the optical path of a photon through the delicate design of photoanode morphology can increase the light absorbance. The marine sponge-like photoanode is facilely constructed and assembled into a solar cell, using an organic D-A-π-A-type dye with wide-spectrum response as the sensitizer. The light scattering derived from the large porous cavities in the photoanode enhances the improved light absorbance of the dye molecules, especially in the long-wavelength region, and therefore improves the cell efficiency. Synergistically engineering the photoanode morphology and adopting matchable dye maximized the light energy conversion efficiency in this study, and a maximal conversion efficiency of 5.02% was achieved.
authors.affiliation: Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
authors.forename: Jian
authors.initials: J
authors.lastname: Liu
authors.forename: Qiang
authors.initials: Q
authors.lastname: Yang
authors.forename: Mingzhu
authors.initials: M
authors.lastname: Li
authors.forename: Weihong
authors.initials: W
authors.lastname: Zhu
authors.forename: He
authors.initials: H
authors.lastname: Tian
authors.forename: Yanlin
authors.initials: Y
authors.lastname: Song
keywords: TiO2; hierarchical; light harvesting; porous; solar cell