Fabrication of Core (C₆₀)-shell (P3HT) Type Hybridized Nanocrystals for Organic Photovoltaic Solar Cells

Abstract

We have successfully fabricated core-shell type hybridized nanocrystals composed of C₆₀ (core, n-type) and poly-alkylthiophene P3HT (shell, p-type) by reprecipitation method. The fabricated hybridized nanocrystals had both absorption bands of C₆₀ and P3HT. The absorption band of the hybridized nanocrystals is almost the same as that of layered fullerene/P3HT structure. Using the hybridized nanocrystals, we also have successfully fabricated layered thin film by electrophoretic deposition method. It seems that the hybridized nanocrystals will be useful as components for OPV device.

Keywords:

• Electrophoretic deposition method
• hybridized nanocrystals
• organic nanocrystals
• organic photovoltaic solar cells

Acknowledgments

Financial supports were provided by the promotion of environmental improvement for independence of young researchers program of ministry of education, culture, sports, science, and technology Japan, Asahi Glass Foundation, Tokyo Ohka Foundation, and JST-ASTEP, for the promotion of science and technology.