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Novel Divinyl-Flanked Diketopyrrolopyrrole Polymer, Based on a Dimerization Strategy for High-Performance Organic
Jinyang Chen1, Jie Zhou1, Na Li1
1Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing 312000, China.
Polymers
|January 17, 2024
Summary
Researchers developed a new acceptor unit, TVDPP, for organic electronics. Polymers made with TVDPP show excellent properties and high performance in organic field-effect transistors (OFETs).
Area of Science:
- Materials Science
- Organic Electronics
- Polymer Chemistry
Background:
- Diketopyrrolopyrrole (DPP) based materials are crucial in organic electronics.
- Developing novel DPP derivatives is essential for advancing device performance.
Purpose of the Study:
- To introduce a novel acceptor structural unit, TVDPP, distinct from classical TDPP structures.
- To synthesize and characterize polymers incorporating TVDPP for optoelectronic applications.
Main Methods:
- Retrosynthetic analysis for monomer design.
- Stille-coupling polymerization for polymer synthesis.
- Photochemical and electrochemical characterization.
- Fabrication and testing of organic field-effect transistors (OFETs).
Main Results:
- Successful synthesis of TVDPP monomer and P2TVDPP polymer with high yield.
- P2TVDPP exhibits high molecular weight, thermal stability, planarity, and small π-π stacking distance.
- OFETs based on P2TVDPP demonstrate excellent carrier mobility (0.41 cm² V⁻¹ s⁻¹) and high on/off ratio (~10⁷).
Conclusions:
- TVDPP represents a significant advancement over traditional DPP structures.
- P2TVDPP shows promising properties for high-performance organic electronic devices.
- This work expands the potential of DPP-based materials in optoelectronics.
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