期刊
CHEMICAL COMMUNICATIONS
卷 58, 期 92, 页码 12819-12822出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2cc04911b
关键词
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资金
- Toray Industries Inc.
- Royal Netherlands Academy of Arts and Sciences
- Dutch Ministry of Education, Culture and Science [024.001.035]
- Netherlands Organization for Scientific Research (NWO-TOP PUNT) [10018944]
- Netherlands Organization for Scientific Research (NWO-VENI) [722.017.003]
This study reports a new approach to design electroactive materials with charge transport properties, by polymerizing molecules with specific structures in their liquid-crystalline state to form nanoscale order while preserving charge transport capabilities.
In their thermotropic liquid-crystalline state, molecular semiconductors can show charge transport with high carrier mobility. Polymerization of the corresponding mesogens into a cross-linked network often deteriorates the charge transport. Here, we report that mesogens consisting of a terthiophene core and discrete oligodimethylsiloxane side-chains terminated by acrylate units can be photopolymerized in the columnar phase with retention of nanoscale order and charge transport capabilities. We argue that the strong tendency for microphase segregation protects the semiconducting block from reacting with free radicals during polymerization. This work provides new insights into the design of electroactive materials with charge transport properties.
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