Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10248920 | Solar Energy Materials and Solar Cells | 2005 | 11 Pages |
Abstract
We have fabricated solid-state, dye-sensitized nanocrystalline TiO2 solar cells (DSSC) based on perylene derivative dye, N,Nâ²-bis-2-(1-hydoxy-4-methylpentyl)-3,4,9,10-perylene bis (dicarboximide) (HMPER) with two different polythiophenes as hole conductors; i.e. poly (3-octyl thiophene) (P3OT) and poly (3-hexyl thiophene) (P3HT), respectively. HMPER adsorbs strongly to the surface of nanocrystalline TiO2 and inject electrons into TiO2 conduction band upon absorption of light. Polythiophene derivatives are well-known materials as hole conductors in solid-state dye-sensitized solar cells. We obtained quite similar results with P3OT and P3HT yielding a short-circuit current density of around 80 μA/cm2 and open-circuit voltage of around 0.7 V at 80 mW/cm2 AM 1.5 light intensity. The results are compared with Ru-535 TBA-sensitized nc-TiO2 cells prepared by using the same polythiophene derivatives.
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Authors
Ceylan Zafer, Canan Karapire, N. Serdar Sariciftci, Siddik Icli,