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A Three‐Dimensional Porous Organic Semiconductor Based on Fully sp 2 ‐Hybridized Graphitic Polymer
Author(s) -
Byun Yearin,
Xie Lilia S.,
Fritz Patrick,
Ashirov Timur,
Dincă Mircea,
Coskun Ali
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202005069
Subject(s) - polymer , aromatization , organic semiconductor , semiconductor , polymerization , materials science , conjugated system , conductivity , porosity , covalent bond , polymer chemistry , chemical engineering , porous medium , carbon fibers , photochemistry , chemistry , organic chemistry , catalysis , optoelectronics , composite material , composite number , engineering
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 m 2 g −1 , full conjugation throughout the carbon backbone, and an electrical conductivity of 6(2)×10 −4 S cm −1 upon treatment with I 2 vapor, the 3D p‐POP is the first member of a new class of permanently porous 3D organic semiconductors.