A Three-Dimensional Porous Organic Semiconductor Based on Fully sp2-Hybridized Graphitic Polymer |
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| Authors: | Dr. Yearin Byun Lilia S. Xie Patrick Fritz Timur Ashirov Prof. Mircea Dincă Prof. Ali Coskun |
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| Affiliation: | 1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141 Republic of Korea;2. Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA, 02139 USA;3. Department of Chemistry, University of Fribourg, Chemin de Musee 9, 1700 Fribourg, Switzerland |
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| Abstract: | Dimensionality plays an important role in the charge transport properties of organic semiconductors. Although three-dimensional semiconductors, such as Si, are common in inorganic materials, imparting electrical conductivity to covalent three-dimensional organic polymers is challenging. Now, the synthesis of a three-dimensional π-conjugated porous organic polymer (3D p-POP) using catalyst-free Diels–Alder cycloaddition polymerization followed by acid-promoted aromatization is presented. With a surface area of 801 m2 g−1, full conjugation throughout the carbon backbone, and an electrical conductivity of 6(2)×10−4 S cm−1 upon treatment with I2 vapor, the 3D p-POP is the first member of a new class of permanently porous 3D organic semiconductors. |
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| Keywords: | 3D carbon allotropes Diels–Alder polymerization microporous materials organic semiconductors porous organic polymers |
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