title: Hierarchical macroporous Zn(2)SnO(4)-ZnO nanorod composite photoelectrodes for efficient CdS/CdSe quantum dot co-sensitized solar cells.
abstract: A hierarchical macroporous Zn2SnO4-ZnO nanorod composite film is prepared through a drop-casting process of PS@Zn2SnO4 and subsequent hydrothermal growth of ZnO nanorod. CdS/CdSe co-sensitized solar cells based on the macroporous Zn2SnO4-ZnO nanorod composite photoelectrode exhibits an enhancement of 34.4% in power conversion efficiency (1.68%) compared to the pristine macroporous Zn2SnO4 photoelectrode (1.25%). Especially worth noting is that the growth of ZnO nanorods contributes greatly to the enlargement of surface area and improvement of light scattering ability of the composite film, which dominates the increase of Jsc values and eventual power conversion efficiency. QDSSCs based on the optimized 9 μm thick composite photoanode film exhibits a power conversion efficiency of 2.08%, which is the highest value for the reported QDs sensitized solar cells based on the Zn2SnO4 photoelectrode.
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-sen University , Guangzhou 510275, P. R. China.
authors.forename: Long-Bin
authors.initials: LB
authors.lastname: Li
authors.forename: Yu-Fen
authors.initials: YF
authors.lastname: Wang
authors.forename: Hua-Shang
authors.initials: HS
authors.lastname: Rao
authors.forename: Wu-Qiang
authors.initials: WQ
authors.lastname: Wu
authors.forename: Ke-Nan
authors.initials: KN
authors.lastname: Li
authors.forename: Cheng-Yong
authors.initials: CY
authors.lastname: Su
authors.forename: Dai-Bin
authors.initials: DB
authors.lastname: Kuang