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Siloxane-based hybrid semiconducting polymers prepared by fluoride-mediated suzuki polymerization
Junghoon Lee1, A-Reum Han, Sang Myeon Lee
1Department of Energy Engineering, School of Energy and Chemical Engineering, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798 (South Korea).
Angewandte Chemie (International Ed. in English)
|February 14, 2015
Summary
A new Suzuki polymerization method creates novel siloxane-based semiconducting polymers. These materials exhibit excellent transistor performance and high charge carrier mobility, opening doors for new organic-inorganic hybrid electronics.
Area of Science:
- Materials Science
- Organic Electronics
- Polymer Chemistry
Background:
- Siloxane-containing materials are crucial organic-inorganic hybrids.
- Developing novel semiconducting polymers is key for advanced electronics.
Purpose of the Study:
- To present a practical Suzuki polymerization for siloxane-based semiconducting polymers.
- To synthesize solution-processable polymers not achievable with conventional methods.
Main Methods:
- A modified Suzuki polymerization under nonbasic conditions.
- Synthesis of poly(diketopyrrolopyrrole-alt-benzothiadiazole) (PDPPBT-Si) with siloxane substituents.
- Synthesis of siloxane-containing DPP-thiophene polymers (PDPP3T-Si, PDPP4T-Si).
Main Results:
- Achieved solution-processable PDPPBT-Si with excellent ambipolar transistor performance.
- Demonstrated well-balanced hole and electron field-effect transistor (FET) mobilities.
- Obtained high hole mobility up to 1.29 cm²/Vs in PDPP3T-Si and PDPP4T-Si.
Conclusions:
- The developed synthetic approach enables access to diverse siloxane-containing conjugated semiconductors.
- This method facilitates the creation of novel organic-inorganic hybrid materials for electronic applications.
- The synthesized polymers show promise for high-performance organic electronic devices.
