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On Nov. 7th, the 48th ROEL Lecture Session was held in Conference room on 4th floor in Research Center for Organic Electronics. We invited a lecturer from the US, Dr. Christine Luscombe, Asso. Prof. of Materials Science and Engineering Department and Molecular Engineering and Sciences Institute, University of Washington.

More than 30 researchers and students attended to the lecture entitled "Controlling semiconducting polymer architectures for organic photovoltaic devices", and it finished in success.

Conference room during lecture

Christine Luscombe Associate Professor, Materials Science and Engineering Department and Molecular Engineering and Sciences Institute, University of Washington, Seattle

The ability of chemists to design and synthesize π-conjugated organic polymers with
precise control over the molecular weight with narrow polydispersities remains one of the keys to using polymeric materials in electronic and photonic devices. Being able to synthesize well-defined block copolymers, star shaped polymers and surface grafted polymers will expand the structural library of semiconducting polymers which will allow us to obtain a more in-depth knowledge of the relationship between the structure-property relationship of semiconducting polymers. Extensive research for nonlinear polymers has been conducted to prepare multifunctional molecular architectures with higher dimensionalities such as star-shaped, disk-like, and hyperbranched polymers. Their intrinsic compact structures and globular shape predetermine their unique properties in comparison with linear polymers, such as low viscosity and high solubility. In this talk, the synthetic advances that have been made in creating star and hyperbranched semiconducting polymers will be discussed.