title: Open structure ZnO/CdSe core/shell nanoneedle arrays for solar cells.
abstract: Open structure ZnO/CdSe core/shell nanoneedle arrays were prepared on a conducting glass (SnO2:F) substrate by solution deposition and electrochemical techniques. A uniform CdSe shell layer with a grain size of approximately several tens of nanometers was formed on the surface of ZnO nanoneedle cores after annealing at 400°C for 1.5 h. Fabricated solar cells based on these nanostructures exhibited a high short-circuit current density of about 10.5 mA/cm2 and an overall power conversion efficiency of 1.07% with solar illumination of 100 mW/cm2. Incident photo-to-current conversion efficiencies higher than 75% were also obtained.
authors.affiliation: School of Physics and State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, People's Republic of China. cyx@sdu.edu.cn.
authors.forename: Yanxue
authors.initials: Y
authors.lastname: Chen
authors.forename: Lin
authors.initials: L
authors.lastname: Wei
authors.forename: Guanghua
authors.initials: G
authors.lastname: Zhang
authors.forename: Jun
authors.initials: J
authors.lastname: Jiao