I want to fabricate the solar cell by filling the nanotubes with a p-type polymer to create a PN junction…Which kind of techniques should I try? Please let me know, if you have the publications regarding this topic. Thank you in advance..
Best regards,
Vinsensia
Dear Vinsensia,
You can even use low bandgap polymers fitting to the HOMO LUMO of the TiO2, like for example PCPDTBT.
However, I have experienced very low efficiencies when filling titania nanotubes (created by Ti anodization on ITO) directly with a polymer. The problem is the high defect density of the manufactured TiO2, making it necessary to deposit an interlayer for passivating the metal oxide surface!
Examples thatfore are:
- ruthenium dye N719 or pyridine: doi:10.1016/j.jallcom.2013.04.006,
- 4-mercaptopyridine: http://dx.doi.org/10.1063/1.4824040,
- Sb2S3: doi: 10.1021/nl101322h,
- Sb2S3 together with decyl-phosphonic acid (DPA): 10.1002/aenm.201200540.
You can find more information on this topic from the works published by Jonas Weickert: https://scholar.google.de/citations?user=c3rA6ggAAAAJ&hl=de
Good luck!
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