Highly Crystalline and Semiconducting Imine-Based Two-Dimensional Polymers Enabled by Interfacial Synthesis
| Autor: | Marco Ballabio, Hafeesudeen Sahabudeen, Rishi Shivhare, Mischa Bonn, Thomas Heine, Bernd Rellinghaus, Ji Ma, Kejun Liu, Selina Olthof, SangWook Park, Enrique Cánovas, Ute Kaiser, Stefan C. B. Mannsfeld, Yu Jing, Tao Zhang, Haoyuan Qi, Zhikun Zheng, Xinliang Feng, Renhao Dong, Miroslav Položij |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Covalent Organic Frameworks
DDC 540 / Chemistry & allied sciences Electron mobility Materials science Photoconductivity Band gap 010402 general chemistry 01 natural sciences Catalysis chemistry.chemical_compound Crystallinity imine-based COFs Research Articles chemistry.chemical_classification 010405 organic chemistry business.industry p-Halbleiter General Medicine General Chemistry Polymer Porphyrin 0104 chemical sciences Terahertz spectroscopy and technology Semiconductor Semiconductors chemistry Chemical engineering interfacial synthesis Photoleitung ddc:540 2D polymers Crystallite business Research Article |
| Zdroj: | Angewandte Chemie / International edition International edition 59(15), 6028-6036 (2020). doi:10.1002/anie.201915217 Repositorio Institucional del Instituto Madrileño de Estudios Avanzados en Nanociencia instname Angewandte Chemie (International Ed. in English) Angewandte Chemie International Edition |
| DOI: | 10.3204/pubdb-2020-00627 |
| Popis: | Angewandte Chemie / International edition International edition 59(15), 6028 - 6036 (2020). doi:10.1002/anie.201915217 Single‐layer and multi‐layer 2D polyimine films have been achieved through interfacial synthesis methods. However, it remains a great challenge to achieve the maximum degree of crystallinity in the 2D polyimines, which largely limits the long‐range transport properties. Here we employ a surfactant‐monolayer‐assisted interfacial synthesis (SMAIS) method for the successful preparation of porphyrin and triazine containing polyimine‐based 2D polymer (PI‐2DP) films with square and hexagonal lattices, respectively. The synthetic PI‐2DP films are featured with polycrystalline multilayers with tunable thickness from 6 to 200 nm and large crystalline domains (100–150 nm in size). Intrigued by high crystallinity and the presence of electroactive porphyrin moieties, the optoelectronic properties of PI‐2DP are investigated by time‐resolved terahertz spectroscopy. Typically, the porphyrin‐based PI‐2DP 1 film exhibits a p‐type semiconductor behavior with a band gap of 1.38 eV and hole mobility as high as 0.01 cm2 V−1 s−1, superior to the previously reported polyimine based materials. Published by Wiley-VCH, Weinheim |
| Databáze: | OpenAIRE |
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