| 초록 |
Heteroatoms-doped graphene nanoplateles and conducting polymer-graphene composites are a potential candidate as a counter electrode (CE) material to replace the Pt for long-term stability and low-cost fabrication of sensitization type solar cells including dye-sensitized solar cell (DSSC). Heteroatoms-doped graphene nanoplatelets (XGnP, X = N, B, halogens etc.) deposited on fluorine-doped SnO2 (FTO)/glass substrates and their electrocatalytic activities were systematically evaluated for Co(bpy)33+/2+ redox couple in DSSCs with an organic sensitizer. Additionally, to enhance the low adhesion capacity of graphene with FTO and low stability, the graphene composite with conducting polymer materials is was prepared. Different weight percent (%) of GnP was mixed with PEDOT:PSS (PP), and subsequently dispersed by ultrasonication. The PEDOT:PSS/GnP (PPG) CE was highly stable with strong adhesion capacity. |
