Study on Dye-sensitized Solar Cells based on ZnO Nanorods and Graphene Enhanced P3HT as HTM
Keywords:
Nanocomposite, graphene;, organic elecronics, metal oxide semiconductor, solid state dye- sensitive solar cells.Abstract
A quasi solid state dye-sensitized solar cells (DSSC) is fabricated using 1-propyl-3methylimidazolium iodide and
Poly (3-Hexail Thiophene) P3HT, and P3HT-loading graphene (G) as the composite electrolyte. The electrolyte without
added iodine is sandwiched between ZnO NW photo electrode both pristine and graphene enhanced P3HT (G-P3HT,
5% wt graphene) were used in solid state dye as Hole transport material draw a lot of attention due to easy fabrication,
using P3HT-Graphene (P3HTI-graphene) nanocomposites were synthesized on FTO glass by solution process and
employed as HTM to replace the conventionally used expensive Pt electrode, The solar cells based on vertical ZnO
nanowire arrays by utilizing a mixture paste of LiI, PMII and solid iodine as electrolyte. The initial results showed the
power conversion efficiency of 2.1%. The cells with pristine and G-P3HT showed different performance. The power
conversion efficiency was improved from 0.16 to 2.1 mA for G-P3HT solar cells. It exhibited increased power
conversion efficiency from 0.87 to 2.1%
