Novel structure of TiO2-ZnO core shell rice grain for photoanode of dye-sensitized solar cells

作者：Song, Lixin; Jiang, Qingxu; Du, Pingfan; Yang, Yefeng; Xiong, Jie^*; Cui, Can

来源：Journal of Power Sources, 2014, 261: 1-6.

DOI：10.1016/j.jpowsour.2014.03.030

• Titanium dioxide
• Zinc oxide
• Core shell
• Rice grain
• Dye-sensitized solar cells

The TiO2-ZnO core shell rice grains are prepared by coaxial electrospinning and calcination. These core shell rice grains have the length of 300-800 nm and the BET surface area of 66.3 m(2) g(-1). They consist of anatase TiO2 (core) and wurtzite ZnO (shell). Using this novel structure as the photoanodic material, the dye-sensitized solar cells (DSSCs) have the conversion efficiency (eta) of 5.31%, which is increased by 23.9% in comparison with that of the DSSCs based on the TiO2 rice grains. This is mainly ascribed to the improvement in both light harvesting efficiency and electron collection efficiency, and the effective suppression of charge recombination.

• 出版日期2014-9-1
• 单位浙江理工大学