Comparison of Hybrid Blends for Solar Cell Application

Maria C. Lechmann, Dominik Koll, Daniel Kessler, Patrick Theato, Wolfgang Tremel and Jochen S. Gutmann
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Maria C. Lechmann: Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
Dominik Koll: Institute for Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg University, Duisbergweg 10-14, 55099 Mainz, Germany
Daniel Kessler: Institute for Organic Chemistry, Johannes Gutenberg University, Duisbergweg 10-14, 55099 Mainz, Germany
Patrick Theato: Institute for Organic Chemistry, Johannes Gutenberg University, Duisbergweg 10-14, 55099 Mainz, Germany
Wolfgang Tremel: Institute for Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg University, Duisbergweg 10-14, 55099 Mainz, Germany
Jochen S. Gutmann: Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany

Energies, 2010, vol. 3, issue 3, 1-12

Abstract: In blended hybrid systems distinct micro- or nanostructured materials can be formed by phase separation. Network structures of particles or rods in a polymer matrix can be developed via self-assembly. We use this blending approach to compare active materials for application in solar cell devices. Blends were fabricated from either poly(hexylthiophene) P3HT or poly(triphenylamine) PTPA mixed with nanocrystalline TiO 2 rods. In this manner, we compare two different hole conducting polymers in their performance in photovoltaic devices, while experimental conditions are kept identical. We find that the choice of solvent and photovoltaic characterization conducted in inert atmosphere is of importance for blends prepared from P3HT/TiO 2 blends, but not for PTPA/TiO 2 blends. Even though prepared with the same TiO 2 rods, solar cells prepared from PTPA blends showed an enhanced efficiency when measured under ambient conditions. Furthermore, the PTPA/TiO 2 showed higher long-term stability.

Keywords: hybrid solar cell; P3HT; PTPA; ambient condition (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2010
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