Hierarchical TiO2 Nanosheets for Efficient Dye-Sensitized Solar Cells

• 作 者: Jia-QingHua;Bing-XinLei;Zhen-FanSun;
• 机 构: School of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158,P.R. China
• 出 处: 2013海南大学材料与化工学科第三届研究生学术论坛
• 发表日期: 2013年期

　　We present a strategy for synthesizing TiO2 nanosheets on FTO glass substrate through layer-by-layer absorption and reaction (LBL-AR) method using oriented porous ZnO nanosheets as a template, followed by wet-chemical etching and depositing process.The effect of immersing cycles on the morphology, optical property and performance of dye-sensitized solar cells (DSSCs) has been demonstrated.An efficiency of 4.94% (under AMI.5 irradiation, 100 mW cm-2) is obtained from the immersing 30 cycles, with a short-circuit current density (JSC) =8.02mA cm-2, open-circuit voltage (Voc) =0.870 V and fill factor (FF) =70.82%.