A fluorenone based low band gap solution processable copolymer for air stable and high mobility organic field effect...

Area of Science:

• Materials Science
• Organic Electronics
• Polymer Chemistry

Background:

• Development of advanced organic semiconductors is crucial for next-generation electronics.
• Fluorenone and furan moieties are known building blocks for functional organic materials.

Purpose of the Study:

• To design and synthesize a novel alternating copolymer incorporating fluorenone and furan units.
• To investigate the electronic properties and performance of the synthesized polymer in organic thin-film transistors (OTFTs).

Main Methods:

• Chemical synthesis of the fluorenone-furan alternating copolymer.
• Characterization of the polymer's optical and electronic properties (band gap, HOMO level).
• Fabrication and testing of OTFT devices using the polymer as the active layer.

Main Results:

• Successful synthesis of the fluorenone-based alternating copolymer.
• The polymer exhibits a small band gap and a low Highest Occupied Molecular Orbital (HOMO) energy level.
• Achieved high hole mobilities of up to 0.15 cm(2) V(-1) s(-1) in air when used in OTFTs.

Conclusions:

• The designed fluorenone-based copolymer is a promising semiconductor material for organic electronics.
• The material's properties are suitable for efficient hole transport in OTFTs.
• Further research can explore structural modifications for enhanced device performance.