Comparative Study on Structural Properties of Poly(3-hexylthiophene) and Poly(3-hexylthiophene):6,6-Phenyl-C61 Butyric Acid Methyl Ester Thin Films Using Synchrotron X-ray Diffraction

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概要

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• The structural properties of a bulk heterojunction of poly(3-hexylthiophene) (P3HT) and 6,6-phenyl-C61 butyric acid methyl ester (PCBM) was investigated using synchrotron X-ray diffraction and atomic force microscope techniques. The growth of anisotropic crystals of P3HT components in the bulk heterojunction was observed. The $\pi$–$\pi$ stacking structure between the facing thiophene rings of P3HT was disturbed by the introduction of PCBM, whereas the side chain crystallization along the $a$-axis of P3HT occurred smoothly. We discuss a possible mechanism of the anisotropic crystallization on the basis of the configuration of P3HT. The importance of controlling the $\pi$–$\pi$ stacking and phase separation of the composed materials on the performance of the bulk heterojunction cell is suggested.

• 2010-01-25

著者

• Kubota Masato

  Photon Factory Institute Of Materials Structure Science High Energy Accelerator Research Organizatio

• YOSHIDA Yuji

  National Research Institute for Metals

• Akimoto Katsuhiro

  Institute Of Applied Physics University Of Tsukuba

• Sakurai Takeaki

  Institute Of Applied Physics University Of Tsukuba

• Toyoshima Susumu

  Institute of Applied Physics, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan

• Kubota Masato

  Photon Factory, IMSS, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan

• Yamanari Toshihiro

  National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan

• Taima Tetsuya

  National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan

• Yoshida Yuji

  National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan

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