Highly Efficient Dye-Sensitized Solar Cells based on Carbon Nanofibers Counter Electrodes

摘要

Carbon nanofibers (CNFs) exhibiting a large surface area and structural stability can provide high electrochemical performance in dye-sensitized solar cells (DSSCs). The effect of CNFs layer thickness on the performance of the DSSCs was researched by cyclic voltammetry (CV), and Tafel polarization measurements. The highest power-conversion efficiency (PCE) of 6.07% was achieved for the DSSC fabricated with CNFs CE at the optimized film thickness of 13 μm, a value similiar to that achieved with Pt CE (6.2%).