Department of Electro-optical Engineering, National Taipei University of Technology, 1, 3 Sec., Chung-Hsiao E. Rd., Taipei 106, Taiwan.
Nanoscale Res Lett. 2014 Aug 3;9(1):380. doi: 10.1186/1556-276X-9-380. eCollection 2014.
This study investigates the extent to which the TiO2/graphene/TiO2 sandwich structure improves the performance of dye-sensitized solar cells (DSSCs) over that of DSSCs with the traditional structure. Studies have demonstrated that the TiO2/graphene/TiO2 sandwich structure effectively enhances the open circuit voltage (V oc), short-circuit current density (J sc), and photoelectrical conversion efficiency (η) of DSSCs. The enhanced performance of DSSCs with the sandwich structure can be attributed to an increase in electron transport efficiency and in the absorption of light in the visible range. The DSSC with the sandwich structure in this study exhibited a V oc of 0.6 V, a high J sc of 11.22 mA cm(-2), a fill factor (FF) of 0.58, and a calculated η of 3.93%, which is 60% higher than that of a DSSC with the traditional structure.
本研究考察了 TiO2/石墨烯/TiO2 夹层结构在提高染料敏化太阳能电池（DSSC）性能方面相对于传统结构的 DSSC 的程度。研究表明，TiO2/石墨烯/TiO2 夹层结构可有效提高 DSSC 的开路电压（V oc）、短路电流密度（J sc）和光电转换效率（η）。夹层结构 DSSC 性能的提高可归因于电子传输效率的提高和可见光吸收的增加。本研究中的夹层结构 DSSC 表现出 0.6 V 的 V oc、11.22 mA cm(-2) 的高 J sc、0.58 的填充因子（FF）和计算出的 3.93%的 η，比传统结构的 DSSC 高 60%。
